Honda Grom125 2015 Manual Download

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Tire Puncture

Removing Wheels

ou
bles

hoo

ting

❙

Front Wheel

Removal

Park on a firm, level surface.

Remove the front axle nut.

Support your motorcycle securely and
raise the front wheel off the ground
using a maintenance stand or a hoist.

Remove the front axle shaft, front wheel
and side collars.

Avoid getting grease, oil, or dirt on
the disc or pad surfaces.

Do not pull the brake lever while the
front wheel is removed.

Front axle

nut

Front axle

shaft

Summary of Contents for Grom125 2015

Page 1: ...Contents Motorcycle Safety P 2 Operation Guide P 16 Maintenance P 33 Troubleshooting P 73 Information P 88 Specifications P 109 Index P 113 ...

Page 2: ... the break in guidelines and always perform the pre ride inspection and other periodic checks in this manual When service is required remember that your Honda dealer knows your motorcycle best If you have the required mechanical know how and tools you can purchase an official Honda Service Manual to help you perform many maintenance and repair tasks 2 P 104 Read the warranty information thoroughly...

Page 3: ...intaining a motorcycle You must use your own good judgment You will find important safety information in a variety of forms including Safety labels on the motorcycle Safety Messages preceded by a safety alert symbol and one of three signal words DANGER WARNING or CAUTION These signal words mean 3DANGER You WILL be KILLED or SERIOUSLY HURT if you don t follow instructions 3WARNING You CAN be KILLED...

Page 4: ... contains important information for safe riding of your motorcycle Please read this section carefully Safety Guidelines P 3 Safety Labels P 7 Safety Precautions P 9 Riding Precautions P 10 Accessories Modifications P 14 Loading P 15 ...

Page 5: ...ies So always wear an approved motorcycle helmet and protective apparel 2 P 9 Make sure that you are physically fit mentally focused and free of alcohol and drugs Check that you and your passenger are both wearing an approved motorcycle helmet and protective apparel Instruct your passenger on holding onto the seat strap or your waist leaning with you in turns and keeping their feet on the footpegs...

Page 6: ... Be prepared to stop quickly or perform an evasive maneuver Make yourself more visible especially at night by wearing bright reflective clothing positioning yourself so other drivers can see you signaling before turning or changing lanes and using your horn when necessary Never ride beyond your personal abilities or faster than conditions warrant Fatigue and inattention can impair your ability to ...

Page 7: ...whether it is safe to continue riding Call for emergency assistance if needed Also follow applicable laws and regulations if another person or vehicle is involved in the crash If you decide to continue riding first evaluate the condition of your motorcycle If the engine is still running turn it off Inspect for fluid leaks check the tightness of critical nuts and bolts and check the handlebar contr...

Page 8: ...eath If you run the engine in confined or even partly enclosed area the air you breathe could contain a dangerous amount of carbon monoxide Never run your motorcycle inside a garage or other enclosure Carbon Monoxide Hazard 3WARNING Carbon monoxide gas is toxic Breathing it can cause unconsciousness and even kill you Avoid any areas or activities that expose you to carbon monoxide ...

Page 9: ...ormation labels on your motorcycle provide important safety information and may warn you of potential hazards that could cause serious injury Read these labels carefully and don t remove them If a label comes off or becomes hard to read contact your dealer for a replacement ...

Page 10: ...Safety Labels 8 Motorcycle Safety ...

Page 11: ... clothing Ride defensively in response to weather and road conditions Helmet Should be safety standard certified high visibility and correct size for your head Must fit comfortably but securely with the chin strap fastened Face shield with unobstructed field of vision or other approved eye protection Look for a DOT Department of Transportation certification label on any helmet you buy Gloves Full ...

Page 12: ...first 300 miles 500 km of running follow these guidelines to ensure your motorcycle s future reliability and performance Avoid full throttle starts and rapid acceleration Avoid hard braking and rapid down shifts Ride conservatively Observe the following guidelines Avoid excessively hard braking and down shifts u Sudden braking can reduce the motorcycle s stability u Where possible reduce speed bef...

Page 13: ...uce speed For full braking effectiveness operate both the front and rear brakes together Engine Braking Engine braking helps slow your motorcycle down when you release the throttle For further slowing action downshift to a lower gear Use engine braking with intermittent use of the brakes to reduce speed when descending long steep slopes Wet or Rainy Conditions Road surfaces are slippery when wet a...

Page 14: ...ey cool down To reduce the likelihood of theft always lock the handlebar and remove the key when leaving the motorcycle unattended Use of an anti theft device is also recommended Parking with the Side Stand 1 Stop the engine 2 Push the side stand down 3 Slowly lean the motorcycle to the left until its weight rests on the side stand 4 Turn the handlebar fully to the left u Turning the handlebar to ...

Page 15: ...ded gasoline Use recommended octane number Using lower octane gasoline will result in decreased engine performance Do not use fuels containing a high concentration of alcohol 2 P 103 Do not use stale or contaminated gasoline or an oil gasoline mixture Avoid getting dirt or water in the fuel tank Refueling and Fuel Guidelines ...

Page 16: ...nd make your motorcycle illegal to operate on public roads and highways Before deciding to install accessories on your motorcycle be certain the modification is safe and legal Do not pull a trailer with or attach a sidecar to your motorcycle Your motorcycle was not designed for these attachments and their use can seriously impair your motorcycle s handling 3WARNING Improper accessories or modifica...

Page 17: ... an excessive load and keep within specified load limits 2 Maximum weight capacity P 109 Tie all luggage securely evenly balanced and close to the center of the motorcycle Do not place objects near the lights or the muffler 3WARNING Overloading or improper loading can cause a crash and you can be seriously hurt or killed Follow all load limits and other loading guidelines in this manual ...

Page 18: ...P20 Indicators P25 Switches P26 Steering Lock P27 Apply throttle gradually Obey the speed limit Start and warm the engine Avoid revving the engine Before pulling away indicate your direction with the turn signal switch and check for oncoming traffic Pre ride Inspection P39 Acceleration Starting the Motorcycle Starting the Engine P28 Shift change P30 ...

Page 19: ...how traffic that you are pulling over and pull over smoothly Close the throttle and apply the front and rear brakes together u The brake light will indicate that you have applied the brakes Do your braking before entering corners Gradually reapply throttle when exiting turn Braking Parking P12 Stopping Turning Corners Refueling P31 ...

Page 20: ...uide Parts Location Spark plug P70 Front brake fluid reservoir P58 Throttle grip P68 Engine oil fill cap dipstick P54 Engine oil drain bolt P55 Battery P53 Fuse box P87 Rear brake fluid reservoir P58 Air cleaner P57 ...

Page 21: ...19 Operation Guide Shift lever P30 Side stand P61 Fuel fill cap P31 Clutch lever P65 Seat P52 Drive chain P62 Helmet holder P32 Crankcase breather P69 ...

Page 22: ... Guide Instruments Tachometer NOTICE Do not operate the engine in the tachometer red zone Excessive engine speed can adversely affect engine life Tachometer red zone excessive engine rpm range button SEL button SET ...

Page 23: ...er segment progress to maximum scale and then disappear If any part of these displays does not come on when it should have your dealer check for problems Speedometer Fuel gauge Remaining fuel when only 1st E segment starts flashing approximately 0 383 US gal 1 45 liters If the fuel gauge indicators repeat flashing or turned off P76 ...

Page 24: ...our display Odometer TOTAL Tripmeter TRIP A B button switches between odometer tripmeters Odometer Total distance ridden Tripmeter Distance ridden since tripmeter was reset press and hold the button to reset to 0 0 mile km SEL SET button SEL button SET ...

Page 25: ... for about 30 seconds the display will stop flashing automatically and the adjustment will be canceled SET 1 Clock setting a Turn the ignition switch on b Press and hold the and buttons until the hour digits start flashing c Press the button until the desired hour is displayed u Press and hold the button to advance the hour fast d Press the button The minute digits start flashing SEL SET SEL SEL S...

Page 26: ... and mileage unit The speed and mileage unit will start flashing The adjustment can also be set by turning the ignition switch off SEL SEL SET 2 Changing of speed and mileage unit a Press the button to select either mph and mile or km h and km b Press the button The speed and mileage unit is set and then the display returns to the ordinary display The adjustment can also be set by turning the igni...

Page 27: ...p MIL Comes on briefly when the ignition switch is turned on with the engine stop switch in the Run position If it comes on while engine is running P75 Left turn signal indicator Right turn signal indicator Neutral indicator Comes on when the transmission is in Neutral High beam indicator ...

Page 28: ...y remain in the Run position u In an emergency switch to the Off position the starter motor will not operate to stop the engine Headlight dimmer switch High beam Low beam Horn button Turn signal switch u Pressing the switch turns the turn signal off Start button ...

Page 29: ...e ignition switch to the LOCK position u Jiggle the handlebar if the lock is difficult to engage c Remove the key Unlocking Insert the key and turn the ignition switch to the OFF position Ignition Switch Switches the electrical system on off locks the steering u Key can be removed when in the OFF or LOCK position ON Turns electrical system on for starting riding OFF Turns engine off LOCK Locks ste...

Page 30: ...tart your motorcycle with the transmission in gear so long as the side stand is raised NOTICE If the motorcycle is transported to a place 6 500 feet 2 000 m higher or lower than the start point you may not be able to achieve sufficient engine performance at the new altitude Consult your dealer before transporting your motorcycle a b c d NOTICE If the engine does not start within 5 seconds turn the...

Page 31: ... and press the start button About 1 8 in 3 mm without freeplay If the engine does not start a Open the throttle fully and press the start button for 5 seconds b Repeat the normal starting procedure c If the engine starts open the throttle slightly if idling is unstable d If the engine does not start wait 10 seconds before trying steps a b again If Engine Will Not Start P74 ...

Page 32: ...ended Shift Points Shifting Up From 1st to 2nd 12 mph 20 km h From 2nd to 3rd 19 mph 30 km h From 3rd to 4th 25 mph 40 km h Shifting Down From 4th to 3rd 16 mph 25 km h From 3rd to 2nd 12 mph 19 km h From 2nd to 1st 7 mph 12 km h NOTICE Improper shifting can damage the engine transmission and drive train Also coasting or towing the motorcycle for long distances with the engine off can damage the t...

Page 33: ...ill cap Closing the Fuel Fill Cap a After refueling align the fuel fill cap latch with the slot in the filler neck Push the fuel fill cap into the filler neck until it snaps closed and locks b Remove the key and close the lock cover u The key cannot be removed if the fuel fill cap is not locked Fuel fill cap Ignition key Lower edge of filler neck Lock cover 3WARNING Gasoline is highly flammable an...

Page 34: ...he helmet holder only when parked Removing the Seat P52 Helmet holder 3WARNING Riding with a helmet attached to the holder can interfere with the rear wheel or suspension and could cause a crash in which you can be seriously hurt or killed Use the helmet holder only while parked Do not ride with a helmet secured by the holder Document bag Tool kit Canada only ...

Page 35: ...be available Check with your Honda dealer s parts department Importance of Maintenance P 34 Maintenance Schedule P 36 Maintenance Fundamentals P 39 Removing Installing Body Components P 52 Seat P 52 Battery P 53 Engine Oil P 54 Air Cleaner P 57 Brakes P 58 Side Stand P 61 Drive Chain P 62 Clutch P 65 Throttle P 68 Crankcase Breather P 69 Spark Plug P 70 Other Adjustments P 72 Headlight Aim P 72 ...

Page 36: ...he owner s responsibility Be sure to inspect your motorcycle before each ride and perform the periodic checks specified in the Maintenance Schedule 2 P 36 Importance of Maintenance 3WARNING Improperly maintaining your motorcycle or failing to correct a problem before you ride can cause a crash in which you can be seriously hurt or killed Always follow the inspection and maintenance recommendations...

Page 37: ...e instructions before you begin each task and make sure that you have the tools parts and skills required We cannot warn you of every conceivable hazard that can arise in performing maintenance Only you can decide whether or not you should perform a given task Follow these guidelines when performing maintenance Stop the engine and remove the key Place your motorcycle on a firm level surface using ...

Page 38: ...rly trained and equipped technicians Your dealer meets all of these requirements Keep an accurate record of maintenance to help ensure that your motorcycle is properly maintained Make sure that whomever performs the maintenance completes this record All scheduled maintenance is considered a normal owner operating cost and will be charged for by your dealer Retain all receipts If you sell the motor...

Page 39: ...e serviced by your dealer Items Frequency 1 1 000 mi 0 6 2 5 5 7 5 Refer to page 1 000 km 1 0 4 8 12 Emission Related Items FUEL LINE THROTTLE OPERATION 68 AIR CLEANER 2 Every 10 000 mi 16 000 km 48 57 CRANKCASE BREATHER 3 69 SPARK PLUG 70 VALVE CLEARANCE ENGINE OIL Initial 600 mi 1 000 km or 1 month Regular Every 2 500 mi 4 000 km or 6 months 54 ENGINE OIL STRAINER SCREEN ENGINE OIL CENTERIFUGAL ...

Page 40: ...equently when riding in rain or at full throttle 4 Replace every 2 years Replacement requires mechanical skill Items Frequency 1 1 000 mi 0 6 2 5 5 7 5 Refer to page 1 000 km 1 0 4 8 12 Non Emission Related Items DRIVE CHAIN Every 300 mi 500 km 62 BRAKE FLUID 4 58 BRAKE PADS WEAR 59 BRAKE SYSTEM 58 BRAKE LIGHT SWITCH 60 HEADLIGHT AIM 72 CLUTCH SYSTEM 65 SIDE STAND 61 SUSPENSION NUTS BOLTS FASTENER...

Page 41: ...djust slack and lubricate as needed 2 P 62 Check the following items if you are carrying a passenger or cargo Combined weight is within load limits 2 P 109 Cargo is secured properly Check the following items after you get on your motorcycle Throttle action moves smoothly without binding 2 P 68 Brake lever and pedal operate normally Check the remaining fuel and refuel when needed 2 P 13 31 Engine s...

Page 42: ...xamine tread for wear and damage 2 P 49 49 and check the wheels for damage Fluid levels Check the engine oil level 2 P 54 and brake fluid level 2 P 58 Lights Check that the headlight position light brake light tail light turn signals and license plate light are working properly Controls Check the freeplay of the clutch lever 2 P 65 and throttle grip 2 P 68 Drive chain Check the slack 2 P 62 adjust...

Page 43: ...l name color and code mentioned on the color label The color label is attached to the frame under the seat 2 P 52 Replacing Parts Color label 3WARNING Installing non Honda parts may make your motorcycle unsafe and cause a crash in which you can be seriously hurt or killed Always use Honda Genuine Parts or equivalents that have been designed and approved for your motorcycle ...

Page 44: ...l water for at least 15 minutes Using water under pressure can damage your eyes Electrolyte splashes onto your skin u Remove affected clothing and wash your skin thoroughly using water Electrolyte splashes into your mouth u Rinse mouth thoroughly with water and do not swallow WARNING Battery posts terminals and related accessories contain lead and lead compounds Wash your hands after handling Batt...

Page 45: ...ntenance free battery of the same type Charging If you use electrical accessories that drain the battery or you do not ride frequently we recommend that you charge the battery every 30 days using a charger designed specifically for your Honda which can be purchased from your dealer Read the information that came with your battery charger and follow the instructions on the battery Avoid using an au...

Page 46: ...pecifications 2 P 111 If a fuse fails repeatedly you likely have an electrical fault Have your motorcycle inspected by your dealer NOTICE Jump starting using an automobile battery can damage your motorcycle s electrical system and is not recommended Bump starting is also not recommended NOTICE Installing non Honda electrical accessories can overload the electrical system discharging the battery an...

Page 47: ...at the oil satisfies all of the following standards JASO T 903 standard 1 MA SAE standard 2 10W 30 API classification 3 SG or higher 1 The JASO T 903 standard is an index for engine oils for 4 stroke motorcycle engines There are two classes MA and MB For example the following label shows the MA classification 2 The SAE standard grades oils by their viscosity 3 The API classification specifies the ...

Page 48: ... P 62 If the chain does not move smoothly makes strange noises has damaged rollers has loose pins or kinks have the chain inspected by your dealer Also inspect the engine sprocket and rear wheel sprocket If either has worn or damaged teeth have the sprocket replaced by your dealer Brake Fluid NOTICE Brake fluid can damage plastic and painted surfaces Wipe up spills immediately and wash thoroughly ...

Page 49: ...cleaning wipe dry and lubricate with the recommended lubricant Never use gasoline or low flash point solvents for cleaning the drive chain A fire or explosion could result Avoid getting lubricant on the brakes or tires Avoid applying excess chain lubricant to prevent spray onto your clothes and the motorcycle NOTICE Use of a new chain with worn sprockets will cause rapid chain wear Recommended lub...

Page 50: ... motorcycle is washed or overturned Service if the deposit level can be seen in the transparent section of the drain tube If the drain tube overflows the air filter may become contaminated with engine oil causing poor engine performance 2 P 69 Checking the Air Pressure Visually inspect your tires and use an air pressure gauge to measure the air pressure at least once a month or any time you think ...

Page 51: ...oreign objects embedded in the side of the tire or the tread Also inspect for the bumps or bulges in the side walls of the tires Inspecting for Abnormal Wear Inspect the tires for signs of abnormal wear on the contact surface Inspecting Tread Depth Inspect the tread wear indicators If they become visible replace the tires immediately Wear indicator location mark ...

Page 52: ...n this motorcycle The rims are designed for tubeless tires and during hard acceleration or braking a tube type tire could slip on the rim and cause the tire to rapidly deflate 3WARNING Riding on tires that are excessively worn or improperly inflated can cause a crash in which you can be seriously hurt or killed Follow all instructions in this owner s manual regarding tire inflation and maintenance...

Page 53: ...that all tires be removed from service after 10 years from the date of manufacture regardless of their condition or state of wear The last four digits of the TIN tire identification number indicate the date of manufacture Tire Identification Number TIN The tire identification number TIN is a group of numbers and letters located on the sidewall of the tire Tire Service Life DOT XXXX XXXX 22 09 DOT ...

Page 54: ...up and back Installation 1 Insert the prongs into the stays on the frame 2 Push forward and down on the rear of the seat until it locks in place Make sure that the seat is locked securely in position to pull it up lightly The seat locks automatically when closed Take care not to lock your key under the seat Prongs Seat Seat lock Stays Ignition key ...

Page 55: ...ry 5 Remove the battery taking care not to drop the terminal nuts Installation Install the parts in the reverse order of removal Always connect the positive terminal first Make sure that bolts and nuts are tight Readjust the clock after the battery is reconnected since the clock goes wrong once the battery is disconnected 2 P 23 For proper handling of the battery see Maintenance Fundamentals 2 P 4...

Page 56: ...e the oil fill cap dipstick and wipe it clean 4 Place your motorcycle in an upright position on a firm level surface 5 Insert the oil fill cap dipstick until it seats but don t screw it in Check that the oil level is between the upper and lower level marks in the oil fill cap dipstick 6 Securely install the oil fill cap dipstick Oil fill cap dipstick Upper level Lower level ...

Page 57: ...er opening uWipe up any spills immediately 2 Securely reinstall the oil fill cap dipstick For the recommended oil and oil selection guidelines see Maintenance Fundamentals 2 P 45 Changing Engine Oil Changing the oil requires special tools We recommend that you have your motorcycle serviced by your dealer 1 If the engine is cold idle the engine for 3 to 5 minutes 2 Turn the ignition switch off and ...

Page 58: ...the oil at an approved recycling center 6 Install a new sealing washer onto the drain bolt Tighten the drain bolt 7 Fill the crankcase with the recommended oil 2 P 45 and install the oil fill cap dipstick 8 Check the oil level 2 P 54 9 Check that there are no oil leaks Drain bolt Sealing washer Torque 18 lbf ft 24 N m 2 4 kgf m Required oil When changing oil 1 0 US qt 0 9 liters ...

Page 59: ...ent by removing the screw 3 Install the new air cleaner element and tighten the screw uMake sure the air cleaner element is installed securely 4 Install the air cleaner case cover and tighten the screws NOTICE Using the wrong air cleaner element may cause premature engine wear or performance problems Torque 0 8 lbf ft 1 1 N m 0 1 kgf m Torque 0 8 lbf ft 1 1 N m 0 1 kgf m Screws Air cleaner case co...

Page 60: ...LOWER level and UPPER level marks If the brake fluid level in either reservoir is below the LWR or LOWER level mark or the brake lever and pedal freeplay becomes excessive inspect the brake pads for wear If the brake pads are not worn you most likely have a leak Have your motorcycle inspected by your dealer Front Rear Front brake fluid reservoir LWR mark Front Rear Rear brake fluid reservoir LOWER...

Page 61: ...d if a brake pad is worn to the indicator 1 Inspect the brake pads from below the brake caliper 2 Inspect the brake pads from the rear right of the motorcycle If necessary have the pads replaced by your dealer Always replace both left and right brake pads at the same time Front Rear Front Rear Disc Brake pads Wear indicators Wear indicators Disc Brake pads ...

Page 62: ...rake Light Switch Check the operation of the brake light switch Hold the brake light switch and turn the adjusting nut in the direction A if the switch operates too late or turn the nut in the direction B if the switch operates too soon Brake light switch Adjusting nut A B ...

Page 63: ... grease 2 Check the spring for damage or loss of tension 3 Sit on the motorcycle put the transmission in Neutral and raise the side stand 4 Start the engine pull the clutch lever in and shift the transmission into gear 5 Lower the side stand all the way The engine should stop as you lower the side stand If the engine doesn t stop have your motorcycle inspected by your dealer Side stand spring ...

Page 64: ...hain inspected by your dealer 1 Place the transmission in Neutral Stop the engine 2 Place your motorcycle on the side stand on a level surface 3 Check the slack in the lower half of the drive chain midway between the sprockets uDo not ride your motorcycle if the slack exceeds 1 15 16 in 50 mm 4 Roll the motorcycle forward and check that the chain moves smoothly Drive chain slack 1 3 16 to 1 9 16 i...

Page 65: ...the chain requires special tools Have the drive chain slack adjusted by your dealer 1 Place the transmission in Neutral Stop the engine 2 Place your motorcycle on the side stand on a level surface 3 Loosen the rear axle nut 4 Loosen the lock nuts on both sides of the swingarm Rear axle nut Rear edge of adjusting slot Adjusting nut Lock nut Chain adjuster index mark Lock nut Adjusting nut ...

Page 66: ... slots Both marks should correspond If the axle is misaligned turn the right or left adjusting nuts until the marks are aligned and recheck chain slack 7 Tighten the rear axle nut 8 Tighten the drive chain adjusting nuts lightly then hold the adjusting nuts and tighten the lock nuts 9 Recheck drive chain slack If a torque wrench was not used for installation see your dealer as soon as possible to ...

Page 67: ... for kinks or signs of wear If necessary have it replaced by your dealer Lubricate the clutch cable with a commercially available cable lubricant to prevent premature wear and corrosion Freeplay at the clutch lever 3 8 to 13 16 in 10 to 20 mm Freeplay Clutch lever NOTICE Improper freeplay adjustment can cause premature clutch wear ...

Page 68: ...k nut 3 Turn the upper clutch cable adjuster until the freeplay is 3 8 to 13 16 in 10 to 20 mm 4 Tighten the upper lock nut and check the freeplay again 5 Install the rubber dust cover Lower Adjustment If the upper clutch cable adjuster is threaded out near its limit or the correct freeplay cannot be obtained attempt adjustment with the lower clutch cable adjusting nut Upper lock nut Upper clutch ...

Page 69: ...eeplay is 3 8 to 13 16 in 10 to 20 mm 4 Tighten the lower lock nut and check the clutch lever freeplay 5 Start the engine pull the clutch lever in and shift into gear Make sure the engine does not stall and the motorcycle does not creep Gradually release the clutch lever and open the throttle Your motorcycle should move smoothly and accelerate gradually If proper adjustment cannot be obtained or t...

Page 70: ...thly from fully closed to fully open in all steering positions and throttle freeplay is correct If the throttle does not move smoothly close automatically or if the cable is damaged have the motorcycle inspected by your dealer Freeplay at the throttle grip flange 1 16 to 1 4 in 2 to 6 mm Freeplay Flange ...

Page 71: ...kcase Breather Cleaning the Crankcase Breather 1 Place a drain pan under the crankcase breather tube 2 Remove the crankcase breather tube and drain deposits 3 Reinstall the crankcase breather tube Crankcase breather tube ...

Page 72: ...k plug 2 Clean any dirt from around the spark plug base 3 Remove the spark plug using a suitable spark plug wrench 4 Inspect the electrodes and center porcelain for deposits erosion or carbon fouling uIf the erosion or deposit is heavy replace the plug uClean a carbon or wet fouled plug with a plug cleaner otherwise use a wire brush NOTICE Using spark plug with an improper heat range can cause eng...

Page 73: ... 8 turn after it seats If installing a new plug tighten it twice to prevent loosening 9 Reinstall the spark plug cap Take care avoid pinching any cables or wires The gap should be 0 031 to 0 035 in 0 80 to 0 90 mm Side electrode Spark plug gap a First tighten the plug NGK 1 2 turn after it seats DENSO 3 4 turn after it seats b Then loosen the plug c Next tighten the plug again 1 8 turn after it se...

Page 74: ...stments Adjusting the Headlight Aim You can adjust vertical aim of the headlight for proper alignment To move the headlight case loosen the bolt Tighten the bolt after adjustment Obey local laws and regulations Lower Bolt Raise ...

Page 75: ...On or Flashing P 75 PGM FI Programmed Fuel Injection Malfunction Indicator Lamp MIL P 75 Other Warning Indications P 76 Fuel Gauge Failure Indication P 76 Tire Puncture P 77 Electrical Trouble P 83 Battery Goes Dead P 83 Burned out Light Bulb P 83 Blown Fuse P 87 ...

Page 76: ...alfunction indicator lamp MIL is on uIf the indicator light is on contact your dealer as soon as possible Starter Motor Does Not Operate Check the following items Make sure engine stop switch is in Run position 2 P 26 Check for a blown fuse 2 P 87 Check for a loose battery connection or battery terminal corrosion 2 P 43 Check the condition of the battery 2 P 83 If the problem continues have your m...

Page 77: ...lashing PGM FI Programmed Fuel Injection Malfunction Indicator Lamp MIL If the indicator comes on while riding you may have a serious problem with the PGM FI system Reduce speed and have your motorcycle inspected by your dealer as soon as possible ...

Page 78: ...ting Other Warning Indication Fuel Gauge Failure Indication If the fuel system has an error the fuel gauge indicators will be displayed as shown in the illustration If this occurs see your dealer as soon as possible ...

Page 79: ...pair kit Follow the instructions provided with the emergency tire repair kit Riding your motorcycle with a temporary tire repair is very risky Do not exceed 30 mph 50 km h Have the tire replaced by your dealer as soon as possible Removing Wheels Follow these procedures if you need to remove a wheel in order to repair a puncture 3WARNING Riding your motorcycle with a temporary tire repair can be ri...

Page 80: ...t 3 Support your motorcycle securely and raise the front wheel off the ground using a maintenance stand or a hoist 4 Remove the front axle shaft front wheel and side collars uAvoid getting grease oil or dirt on the disc or pad surfaces uDo not pull the brake lever while the front wheel is removed Front axle nut Front axle shaft ...

Page 81: ...After installing the wheel apply the brake lever several times then check if the wheel rotates freely Recheck the wheel if the brake drags or if the wheel does not rotate freely If a torque wrench was not used for installation see your dealer as soon as possible to verify proper assembly Improper assembly may lead to loss of braking capacity NOTICE When installing the wheel carefully fit the brake...

Page 82: ... stand or a hoist 2 Loosen the rear axle nut lock nuts and turn the adjusting nuts so the rear wheel can be moved all the way forward for maximum drive chain slack 3 Remove the rear axle nut 4 Remove the drive chain from the rear wheel sprocket by pushing the rear wheel forward Adjusting nut Lock nut Rear axle nut Adjusting nut Lock nut Rear axle shaft Drive chain ...

Page 83: ...ces uDo not push the brake pedal while the brake caliper is removed Installation 1 To install the rear wheel reverse the removal procedure uTake care to prevent the brake caliper from scratching the wheel during installation 2 Make sure that the lug on the brake caliper bracket is positioned in the slot on the swingarm NOTICE When installing the brake caliper into position carefully fit the brake ...

Page 84: ...apply the brake pedal several times then recheck that the wheel rotates freely Recheck the wheel if the brake drags or if the wheel does not rotate freely If a torque wrench was not used for installation see your dealer as soon as possible to verify proper assembly Improper assembly may lead to loss of braking capacity Torque 44 lbf ft 59 N m 6 0 kgf m ...

Page 85: ...not recover after recharging contact your dealer Burned out Light Bulb Follow the procedure below to replace a burned out light bulb Turn the ignition switch to the OFF or LOCK position Allow the bulb to cool before replacing it Do not use bulbs other than those specified Check the replacement bulb for correct operation before riding For the light bulb wattage see Specifications 2 P 111 NOTICE Jum...

Page 86: ... Remove the dust cover 4 Press the pin down and pull out the bulb without turning it 5 Install a new bulb and parts in the reverse order of removal Do not touch the glass surface with your fingers If you touch the bulb with your bare hands clean it with a cloth moistened with isopropyl rubbing alcohol Bolts Headlight assembly Bolts Bulb Dust cover Connector Pin ...

Page 87: ...everal LEDs If there is a LED which is not turned on see your dealer for servicing Front Rear Turn Signal Bulb 1 Remove the screw 2 Remove the turn signal lens 3 Slightly press the bulb and turn it counterclockwise 4 Install a new bulb and parts in the reverse order of removal Brake Tail light Screw Bulb Turn signal lens ...

Page 88: ...lb 86 Troubleshooting License Plate Light Bulb 1 Remove the screws 2 Remove the license plate light cover 3 Pull out the bulb without turning 4 Install a new bulb and parts in the reverse order of removal Screws Bulb License plate light cover ...

Page 89: ...cting and Replacing Fuses 2 P 44 Fuse Box Fuses 1 Remove the seat 2 P 52 2 Open the fuse box covers 3 Pull out the fuses one by one to check for a blown fuse Always replace a blown fuse with a spare of the same rating 4 Close the fuse box covers 5 Reinstall the seat Spare fuses Fuse box covers ...

Page 90: ...r Motorcycle P 93 Transporting Your Motorcycle P 94 You the Environment P 95 Vehicle Identification Number P 96 Emission Control Systems P 97 Catalytic Converter P 102 Oxygenated Fuels P 103 Authorized Manuals P 104 Warranty Coverage and Service P 105 Honda Contacts P 106 Reporting Safety Defects P 108 USA ...

Page 91: ...ber in a safe location To make a duplicate take the spare key or the key number to your dealer If you lose all keys and the key number the ignition switch assembly will probably have to be removed by your dealer to determine the key number A metal key holder may cause damage to the area surrounding the ignition switch Ignition key ...

Page 92: ...h turn the ignition switch off Failing to do so will drain the battery The display locks at 999 999 when the read out exceeds 999 999 The tripmeter returns to 0 0 when the read out exceeds 9 999 9 The owner s manual registration and insurance information can be stored in the plastic document bag located underside of the seat 2 P 52 A banking lean angle sensor automatically stops the engine and fue...

Page 93: ...other plastic components with extra care to avoid scratching them Avoid directing water into the air cleaner muffler and electrical parts 3 Thoroughly rinse your motorcycle with plenty of clean water and dry with a soft clean cloth 4 After the motorcycle dries lubricate any moving parts u Make sure that no lubricant spills onto the brakes or tires Brake discs pads drum or shoes contaminated with o...

Page 94: ...ent can damage your documents and other belongings Do not direct water at the air cleaner u Water in the air cleaner can prevent the engine from starting Do not direct water near the headlight u Any condensation inside the headlight should dissipate after a few minutes of running the engine Do not use wax or polishing compounds on matte painted surface u Use a soft cloth on sponge plenty of water ...

Page 95: ... the exhaust pipe and muffler If you are not sure if your exhaust pipe and muffler are painted contact your dealer Storing Your Motorcycle If you store your motorcycle outdoors you should consider using a full body motorcycle cover If you won t be riding for an extended period follow these guidelines Wash your motorcycle and wax all painted surfaces except matte painted surfaces Coat chrome pieces...

Page 96: ...required by the Maintenance Schedule For more information about storage refer to the Honda Winter Storage Guide available from your dealer Transporting Your Motorcycle If your motorcycle needs to be transported it should be carried on a motorcycle trailer or a flatbed truck or trailer that has a loading ramp or lifting platform and motorcycle tie down straps Never try to tow your motorcycle with a...

Page 97: ...r Put oil and other toxic wastes in approved containers and take them to a recycling center Call your local or state office of public works or environmental services to find a recycling center in your area and to get instructions on how to dispose of non recyclable wastes Do not place used engine oil in the trash or pour it down a drain or on the ground Used oil gasoline and cleaning solvents cont...

Page 98: ... to register your motorcycle They may also be required when ordering replacement parts The VIN is stamped on the right side of the steering head and also appears on the Safety Certification Label attached to the under side of the frame The engine number is stamped on the left side of the crankcase You should record these numbers and keep them in a safe place VIN VIN ...

Page 99: ... Systems Your motorcycle engine emits combustion byproducts including carbon monoxide CO oxides of nitrogen NOx and hydrocarbons HC Gasoline evaporation also emits hydrocarbons Controlling the production of NOx CO and HC is important for the environment Engine number ...

Page 100: ... according to the instructions provided Compliance with the terms of the Distributor s Warranties for Honda Motorcycle Emission Control Systems is necessary in order to maintain a valid emissions system warranty USA only The Vehicle Emission Control Information label is located the swingarm right side The EPA requires that motorcycles built after January 1 1983 comply with applicable noise emissio...

Page 101: ...air enters the engine and then controls how much fuel to inject Ignition Timing Control System The ignition timing control system adjusts the ignition timing to reduce the amount of HC CO and NOx produced Catalytic Converters The exhaust system contains one or more catalytic converters Catalytic converters use a catalyst to convert most of the harmful exhaust gas compounds into harmless compounds ...

Page 102: ...s prohibited TAMPERING WITH THE NOISE CONTROL SYSTEM IS PROHIBITED U S federal law prohibits and Canadian provincial laws may prohibit the following acts or the causing thereof 1 The removal or rendering inoperative by any person other than for purposes of maintenance repair or replacement of any device or element of design incorporated into any new vehicle for the purpose of noise control prior t...

Page 103: ...e intake system Lack of proper maintenance Removing or disabling any emissions compliance component or replacing any compliance component with a non compliant component Have your motorcycle inspected and repaired by your dealer if you experience any of the following symptoms Hard starting or stalling after starting Rough idling Misfiring or backfiring during acceleration Poor engine performance an...

Page 104: ...r pollution and can impair your engine s performance A replacement unit must be an original Honda part or equivalent Follow these guidelines to protect your motorcycle s catalytic converter Always use unleaded gasoline Leaded gasoline will damage the catalytic converter Keep the engine in good running condition A poorly running engine can cause the catalytic converter to overheat causing damage to...

Page 105: ... up to 5 by volume that contain cosolvents and corrosion inhibitors to protect the fuel system Never use a blend containing more than 5 If you accidentally fill your fuel tank with an oxygenated fuel containing higher percentages you may experience performance problems To resolve the problem have your dealer drain the fuel tank and replace with the correct fuel Fuel system or performance problems ...

Page 106: ...nda motorcycles scooters and all terrain vehicles These Honda manuals are written for the professional technician However if you possess the proper tools observe the safety standards and are mechanically capable you should find them easy to use Special Honda tools are necessary for some procedures Order On Line www helminc com Order Toll Free 1 888 CYCLE93 1 888 292 5393 NOTE For Credit Card Order...

Page 107: ... posted on our web site at www honda ca It is important to realize that your warranty applies only to defects in material or workmanship of your Honda Your warranty coverage does not apply to the normal wear and deterioration associated with use of the motorcycle Your warranty coverage is not voided if you perform your own maintenance However failures that occur due directly to improper maintenanc...

Page 108: ...ren t satisfied with your dealer s handling of the situation we suggest you discuss your problem with the appropriate member of the dealership s management team If you are still not satisfied contact the owner of the dealership or their designated representative Honda Contacts If you wish to contact Honda directly to comment on your experiences with your motorcycle or with your dealer please send ...

Page 109: ...rs Honda Genuine Parts Pro Honda products Honda Genuine Accessories USA only and Honda accessories and products Canada only that provide the same quality that went into your motorcycle The sales department offers the Honda Protection Plan to extend almost all of your warranty coverage USA only Your Honda dealer can also supply information about riding events and information about safety training a...

Page 110: ...y open an investigation and if it finds that a safety defect exists in a group of vehicles it may order a recall and remedy campaign However NHTSA cannot become involved in individual problems between you your dealer or American Honda Motor Co Inc To contact NHTSA you may call the Vehicle Safety Hotline toll free at 1 888 327 4236 TTY 1 800 424 9153 go to http www safercar gov or write to Administ...

Page 111: ...il 3 19 in 81 mm Curb weight 225 lb 102 kg Maximum weight capacity 1 309 lb 140 kg Passenger capacity Rider and 1 passenger Minimum turning radius 6 2 ft 1 9 m Displacement 7 62 cu in 125 cm3 Bore x stroke 2 06 x 2 28 in 52 4 x 57 9 mm Compression ratio 9 3 1 Fuel Unleaded gasoline Recommended fuel octane number Pump Octane Number PON 86 or higher Tank capacity 1 45 US gal 5 5 liters Battery YTZ5S...

Page 112: ...ng CPR7EA 9 NGK or U22EPR9 DENSO Spark plug gap 0 031 to 0 035 in 0 80 to 0 90 mm Idle speed 1 400 100 rpm Recommended engine oil API Service Classification SG or higher except oils labeled as energy conserving or resource conserving on the circular API service label SAE 10W 30 JASO T 903 standard MA Pro Honda GN4 4 stroke oil USA Canada or Honda 4 stroke oil or an equivalent motorcycle oil Engine...

Page 113: ...ngine sprocket 15T Rear wheel sprocket 34T Headlight 12V 35 35W Brake Tail light LED Front turn signal lights 12V 21 5W x 2 Rear turn signal lights 12V 21W x 2 License plate lights 12V 5W Main fuse 15A Other fuses 10A Engine oil drain bolt 18 lbf ft 24 N m 2 4 kgf m Air cleaner element screw 0 8 lbf ft 1 1 N m 0 1 kgf m Air cleaner case cover screw 0 8 lbf ft 1 1 N m 0 1 kgf m Rear axle nut 44 lbf...

Page 114: ...112 Information Record VIN Engine No Color Label Code Owner s Name Address City State Phone Dealer s Name Address City State Phone Service Manager ...

Page 115: ...ake Tail Light 85 Front Rear Turn Signal 85 Headlight 84 License Plate Light 86 C Caring for Your Motorcycle 91 Clock 22 Clutch System 65 Color Label 41 Crankcase Breather 69 D Digital Clock Adjustment 23 Drive Chain 46 62 E Electrical Trouble 83 Emission Control Systems 97 Engine Number 96 Oil 45 54 Starting 28 Stop Switch 26 28 90 Stopping 90 Environment 95 Equipment Owner s Manual 32 ...

Page 116: ... Helmet Holder 32 High Beam Indicator 25 Honda Contacts 106 Horn Button 26 I Ignition Cut off System Banking Sensor 90 Side Stand 61 Ignition Key 89 Ignition Switch 26 28 Indicators 25 Information Record 112 Instruments 20 L Labels 7 Load Limits 15 Loading Guidelines 15 M Maintenance Fundamentals 39 Importance 34 Safety 35 Schedule 36 Maximum Weight Limit 15 Modifications 14 ...

Page 117: ...ion indicator lamp MIL 25 75 Protective Apparel 9 R Recommended Fuel 31 Oil 45 Refueling 31 Removal Battery 53 Seat 52 Repair Kit 77 Reporting Safety Defects U S 108 Riding Precautions 10 S Safety Labels 7 Safety Precautions 9 Shifting Gears 30 Side Stand 61 Side Stand Ignition Cut off System 61 Specifications 109 Speedometer 21 Start Button 26 28 Starting the Engine 28 Steering Lock 27 ...

Page 118: ...ottle 68 Tires Air Pressure 48 Puncture 77 Replacing 48 77 Transporting Your Motorcycle 94 Tripmeter 22 90 Troubleshooting 73 Turn Signal Indicator 25 Turn Signal Switch 26 V Vehicle Identification Number 96 W Warning Indicators On 75 Warranty Coverage and Service 105 Washing Your Motorcycle 91 Weight Limit 15 109 Wheels Front removal 78 Rear removal 80 ...

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Honda Grom125 2015, Manual

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