Yamaha YZ85 2021 Owner'S Manual Download Page 63

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Perio

ic maintenance an

justment

7-24

EAU23185

Checkin

ricatin

the

rake pe

The operation of the brake pedal
should be checked before each ride,
and the pedal pivot should be lubricat-
ed if necessary.

EAU85250

ricatin

the rear suspen-

sion

The pivoting points of the rear suspen-
sion must be lubricated by a Yamaha
dealer at the intervals specified in the
periodic maintenance and lubrication
chart.

EAUM2703

ricatin

the swin

arm piv-

ots

The swingarm pivots must be lubricat-
ed by a Yamaha dealer at the intervals
specified in the periodic maintenance
and lubrication chart.

Recommen

ricant:

Lithium-soap-based grease

Recommen

ricant:

Molybdenum disulfide grease

Recommen

ricant:

Molybdenum disulfide grease

UB4B13E0.book Page 24 Wednesday, August 25, 2021 7:15 AM

Summary of Contents for YZ85 2021

Page 1: ... this vehicle MOTORCYCLE OWNER S MANUAL Specifications Consumer information Motorcycle care and storage Periodic maintenance and adjustment For your safety pre operation checks Instrument and control functions Description Safety information Location of important labels Operation and important riding points Index English E ...

Page 2: ... reproductive harm To minimize exposure avoid breathing exhaust do not idle the engine except as necessary service your vehicle in a well ventilated area and wear gloves or wash your hands frequently when servicing your vehicle For more information go to www P65Warnings ca gov passenger vehicle Read this manual carefully before operating the vehicle This manual should stay with the vehicle if it i...

Page 3: ...aha dealer WARNING EWA14462 Please read this manual the TIPS AND PRACTICE GUIDE FOR THE OFF HIGHWAY MOTORCYCLIST and the PARENTS YOUNGSTERS AND OFF HIGHWAY MOTORCYCLES booklets carefully and completely before oper ating or allowing your child to operate this motorcycle Do not attempt to operate this motorcycle until you have attained adequate knowledge of its controls and operating features and un...

Page 4: ...when new or available from your Yamaha dealer Children differ in skills physical abilities and judgment Some children may not be able to operate a motorcycle safely Parents should supervise their child s use of the motorcycle at all times Parents should permit continued use only if they determine that the child has the ability to operate the motorcycle safely Motorcycles are single track vehicles ...

Page 5: ...tial personal injury hazards Obey all safety messages that follow this symbol to avoid possible injury or death A WARNING indicates a hazardous situation which if not avoided could result in death or serious injury A NOTICE indicates special precautions that must be taken to avoid damage to the vehicle or other property A TIP provides key information to make procedures easier or clearer WARNING NO...

Page 6: ... Motor Corporation U S A 1st edition August 2021 All rights reserved Any reprinting or unauthorized use without the written permission of Yamaha Motor Corporation U S A is expressly prohibited Printed in Japan P N LIT 11626 35 53 UB4B13E0 book Page 2 Wednesday August 25 2021 7 15 AM ...

Page 7: ...eaning the air filter element 7 11 Adjusting the carburetor 7 13 Adjusting the engine idling speed 7 13 Adjusting the throttle grip free play 7 13 Tires 7 14 Spoke wheels 7 16 Adjusting the clutch lever free play 7 16 Checking the brake lever free play 7 17 Checking the shift pedal 7 18 Checking the front and rear brake pads 7 18 Checking the brake fluid level 7 19 Changing the brake fluid 7 20 Dr...

Page 8: ...ications 9 1 Consumer information 10 1 Identification numbers 10 1 YAMAHA MOTOR CORPORATION U S A 2020 AND LATER MODEL OFF ROAD MOTORCYCLE LIMITED WARRANTY 10 2 Index 11 1 UB4B13E0 book Page 2 Wednesday August 25 2021 7 15 AM ...

Page 9: ...le They contain important information for safe and proper operation of your vehicle Never remove any labels from your vehicle If a label becomes difficult to read or comes off a replacement label is available from your Yamaha dealer 1 4 5 2 3 UB4B13E0 book Page 1 Wednesday August 25 2021 7 15 AM ...

Page 10: ...ou operate this vehicle on a public road ALWAYS WEAR AN APPROVED MOTORCYCLE HELMET eye protection and protective clothing EXPERIENCED RIDER ONLY 5PA 2118K 01 Cold tire normal pressure should be set as follows FRONT REAR 100kPa 1 00kgf cm 15psi 100kPa 1 00kgf cm 15psi 3RV 21668 A1 TIRE INFORMATION For use only on a closed course in sanctioned competition This motorcycle does not meet EPA noise and ...

Page 11: ...n Failure to inspect or maintain the vehi cle properly increases the possibility of an accident or equipment damage See page 5 1 for a list of pre operation checks This motorcycle is designed for off road use only therefore it is il legal to operate it on public streets roads or highways even a dirt or gravel one Off road use on public lands may be illegal Please check local regulations be fore ri...

Page 12: ... are the result of head in juries The use of a safety helmet is the single most critical factor in the pre vention or reduction of head injuries Always wear an approved helmet Wear a face shield or goggles Wind in your unprotected eyes could contribute to an impairment of vision that could delay seeing a hazard The use of a jacket heavy boots trousers gloves etc is effective in preventing or reduc...

Page 13: ...f the motorcycle to minimize imbalance or instability Shifting weights can create a sud den imbalance Make sure that accessories are securely attached to the motorcycle before riding Check accessory mounts fre quently Properly adjust the suspension for your load suspension ad justable models only and check the condition and pres sure of your tires Never attach any large or heavy items to the handl...

Page 14: ...ement of the operator and may limit control ability therefore such accesso ries are not recommended Use caution when adding electri cal accessories If electrical ac cessories exceed the capacity of the motorcycle s electrical sys tem an electric failure could re sult which could cause a dangerous loss of lights or engine power Aftermarket Tires and Rims The tires and rims that came with your motor...

Page 15: ...o the straps will not rub against painted surfaces during transport The suspension should be com pressed somewhat by the tie downs if possible so that the mo torcycle will not bounce exces sively during transport UB4B13E0 book Page 5 Wednesday August 25 2021 7 15 AM ...

Page 16: ...force adjuster page 4 8 3 Fuel tank cap page 4 3 4 Fuel cock page 4 6 5 Starter choke knob page 4 7 6 Air filter element page 7 11 7 Seat page 4 7 8 Throttle stop screw page 7 13 9 Shift pedal page 4 2 10 Compression damping force adjuster page 4 8 UB4B13E0 book Page 1 Wednesday August 25 2021 7 15 AM ...

Page 17: ...e adjuster page 4 11 3 Kickstarter page 4 7 4 Spark plug cap page 7 7 5 Bleed screw page 4 10 6 Transmission oil filler cap page 7 8 7 Coolant drain bolt page 7 10 8 Brake pedal page 4 3 9 Transmission oil drain bolt page 7 8 10 Rebound damping force adjuster page 4 11 UB4B13E0 book Page 2 Wednesday August 25 2021 7 15 AM ...

Page 18: ...tion 3 3 3 EAU10431 Controls and instruments 1 2 4 3 1 Clutch lever page 4 1 2 Engine stop switch page 4 1 3 Brake lever page 4 2 4 Throttle grip page 7 13 UB4B13E0 book Page 3 Wednesday August 25 2021 7 15 AM ...

Page 19: ...lowly for smooth clutch operation The clutch lever is equipped with a clutch lever position adjusting bolt Ad just the distance between the clutch le ver and the handlebar grip as follows 1 Loosen the locknut 2 While holding the clutch lever pulled slightly towards the handle bar grip turn the adjusting bolt in direction a to increase the dis tance and in direction b to de crease it 3 Tighten the ...

Page 20: ...ever is equipped with a brake lever position adjusting bolt Ad just the distance between the brake le ver and the throttle grip as follows 1 Slide the rubber cover toward the end of the brake lever 2 Loosen the locknut 3 While holding the lever pushed away from the throttle grip turn the adjusting bolt in direction a to increase the distance and in di rection b to decrease it 4 Tighten the locknut...

Page 21: ...uel Leaking fuel is a fire hazard EAU41838 Fuel This motorcycle has been designed to use a premixed fuel of gasoline and 2 stroke engine oil Always mix the gaso line and oil in a clean container before filling the fuel tank NOTICE ECA15602 Always use fresh gasoline and fill the fuel tank with a fresh mix just be fore riding Do not use premixed fuel that is more than a few hours old Mixing gasoline...

Page 22: ... quality oil NOTICE ECA15552 Never mix two brands of 2 stroke engine oil in the same batch Always use the same type of oil to ensure maximum engine performance Should it be necessary to use a dif ferent oil brand be sure to drain the fuel tank and the carburetor float chamber of the old premixed fuel prior to filling with the new type Gasoline This model s engine is designed to use premium unleade...

Page 23: ... heaters and clothes dryers 2 Do not overfill the fuel tank Stop filling when the fuel reaches the bottom of the filler tube Because fuel expands when it heats up heat from the engine or the sun can cause fuel to spill out of the fuel tank 3 Wipe up any spilled fuel immedi ately NOTICE Immediately wipe off spilled fuel with a clean dry soft cloth since fuel may deteriorate painted surfaces or plas...

Page 24: ...1 Fuel cock The fuel cock supplies fuel from the tank to the carburetor while filtering it also The fuel cock has two positions OFF With the lever in this position fuel will not flow Always return the lever to this position when the engine is not run ning ON With the lever in this position fuel flows to the carburetor Normal riding is done with the lever in this position 1 Fuel tank breather hose ...

Page 25: ...thly but force fully This model is equipped with a pri mary kickstarter allowing the engine to be started in any gear if the clutch is disengaged However shifting the transmission into the neutral position before starting is recommended EAU94040 Seat To remove the seat Open the cap remove the bolt lift the rear of the seat and then pull it rear ward To install the seat 1 Fit the slot in the seat o...

Page 26: ...crews and compression damping force ad justing screws NOTICE ECA10102 To avoid damaging the mechanism do not attempt to turn beyond the maximum or minimum settings Rebound damping force 1 Remove the protector 2 Turn the adjusting screw in direc tion a to increase the rebound damping force Turn the adjusting screw in direction b to decrease the rebound damping force To set the rebound damping force...

Page 27: ...ber cap by pulling it out of the front fork leg 2 Turn the adjusting screw in direc tion a to increase the compres sion damping force Turn the adjusting screw in direction b to decrease the compression damp ing force To set the compression damping force turn the adjuster in direction a until it stops and then count the clicks in direction b 1 Rebound damping force adjusting screw Rebound damping s...

Page 28: ...d harden the front suspension If this occurs bleed the air from each front fork leg WARNING EWA10201 Always bleed both fork legs other wise poor handling and loss of sta bility may result To bleed the front fork legs 1 Remove the protector 2 Place the motorcycle on a suitable stand See page 7 26 3 Make sure the front wheel is off the ground and the area near the bleed screws is clean 4 Remove the ...

Page 29: ...e locknut 3 Turn the adjusting nut in direction a to increase the spring preload Turn the adjusting nut in direction b to decrease the spring preload A special wrench can be ob tained at a Yamaha dealer to make this adjustment The spring preload setting is determined by measuring distance A shown in the illus tration The longer distance A is the lower the spring pre load the shorter distance A is ...

Page 30: ...ction b to decrease the rebound damping force To set the rebound damping force turn the adjuster in direction a until it stops and then count the clicks in di rection b 1 Distance A Spring preload Minimum soft Distance A 218 5 mm 8 60 in Standard Distance A 210 0 mm 8 27 in YZ85LWN 215 0 mm 8 46 in YZ85N Maximum hard Distance A 202 0 mm 7 95 in 1 Tightening torque Locknut 30 N m 3 0 kgf m 22 lb ft...

Page 31: ... it may click beyond the stated specifica tions however such adjustments are ineffective and may damage the suspension WARNING EWA10222 This shock absorber assembly con tains highly pressurized nitrogen gas Read and understand the fol lowing information before handling the shock absorber assembly Do not tamper with or attempt to open the cylinder assembly Do not subject the shock ab sorber assembl...

Page 32: ...de stand Always remove the sidestand before starting out EAU84180 YPVS system This model s engine is fitted with Yamaha Power Valve System YPVS This system boosts engine power by means of a valve that controls exhaust port opening aperture NOTICE ECA26380 The YPVS system has been exten sively tested and set up by Yamaha Changing the YPVS settings without sufficient technical knowledge can result i...

Page 33: ...fore using this vehicle check the following points ITEM CHECKS PAGE Fuel Check fuel level in fuel tank Always use a fresh mixture of gasoline and oil Check fuel line for leakage Check fuel tank breather hose for obstructions cracks or damage and check hose connection 4 3 4 6 Transmission oil Check for leakage 7 8 Coolant Check coolant level If necessary add recommended coolant to specified level C...

Page 34: ...13 7 23 Drive chain Check chain slack Adjust if necessary Check chain condition Lubricate if necessary 7 20 7 22 Drive sprocket Check the drive sprocket nut torque Tighten if necessary Wheels and tires Check for damage Check tire condition and tread depth Check air pressure Correct if necessary Check for loose spokes and tighten if necessary 7 14 7 16 Shift pedal Make sure that operation is smooth...

Page 35: ...replace if necessary Moving parts and cables Check the control cables for damage Check that the control cables move smoothly Check that the control cables are not caught when the handlebars are turned or when the front forks travel up and down Lubricate moving parts and cables if necessary 7 22 7 23 7 24 7 24 Exhaust system Check that the exhaust pipe and muffler are tightly mounted and have no cr...

Page 36: ...ollows 2 Start and warm up the engine Check the operation of the con trols and the engine stop switch See page 4 1 3 Operate the motorcycle in the lower gears at moderate throttle openings for 5 to 8 minutes Stop the engine and check the spark plug condition see page 7 7 it will show a rich condition during break in 4 Allow the engine to cool Restart the engine and operate the motor cycle as in th...

Page 37: ... drive chain slack and for loose spokes Notes on engine overhauls If the following parts have been re placed they must be broken in as fol lows Piston rings or transmission gears 30 minutes of break in op eration at half throttle or less Cylinder or crankshaft 60 minutes of break in operation is necessary TIP Observe the condition of the engine carefully during break in operation NOTICE ECA10271 I...

Page 38: ...eatedly until it reaches the end of its travel and then slightly raise it NOTICE ECA10262 When shifting press the shift pedal firmly until you feel the gear shift is complete Even with the transmission in the neutral position do not coast for long periods of time with the engine off nor tow the motorcycle for long distances The transmission is properly lu bricated only when the engine is running I...

Page 39: ...ate 1 Close the throttle and apply both the front and the rear brakes to slow the motorcycle 2 Downshift through the gears and shift the transmission into the neu tral position when the motorcycle is almost completely stopped EAU17192 Parking When parking stop the engine and then turn the fuel cock lever to OFF WARNING EWA10312 Since the engine and exhaust system can become very hot park in a plac...

Page 40: ...perly maintain the vehi cle or performing maintenance ac tivities incorrectly may increase your risk of injury or death during service or while using the vehicle If you are not familiar with vehicle ser vice have a Yamaha dealer perform service WARNING EWA15123 Turn off the engine when performing maintenance unless otherwise specified A running engine has moving parts that can catch on body parts ...

Page 41: ...e performed by a Yamaha dealer as they require special tools data and technical skills NO ITEM ROUTINE After break in Every race Every third race Every fifth race As required 1 Piston Check piston for carbon deposits and cracks or damage Clean Replace 2 Piston rings Check piston ring end gap and rings for damage Replace 3 Piston pin and small end bearing Check piston pin and small end bearing for ...

Page 42: ...hift cam Check all parts for wear and damage Replace if necessary 10 Rotor nut flywheel magneto Tighten 11 Kickstarter system Check idle gear for damage Replace if necessary 12 Exhaust system Check exhaust pipe and muffler for carbon deposits Clean 13 Crankshaft Check crankshaft for carbon deposits and damage Clean 14 Carburetor Check carburetor settings and for obstruc tions Adjust and clean NO I...

Page 43: ... Chassis fasteners Check all chassis fitting and fasteners Correct or tighten if necessary 19 Air filter element Clean Replace 20 Frame Clean and check for damage 21 Fuel line Clean and check for leakage 22 Brakes Adjust lever position and pedal height Lubricate pivot points Check brake disk surface Check fluid level and for leakage Tighten brake disk bolts caliper bolts master cylinder bolts and ...

Page 44: ...n 25 Drive chain roller and support guide Check for wear or damage Replace if necessary 26 Rear suspension Check operation and tighten if necessary Lubricate with molybdenum disulfide grease 27 Swingarm pivot bear ings Check bearing assemblies for looseness Lubricate with molybdenum disulfide grease 28 Steering head Check operation free play and tighten if necessary Clean and lubricate with lithiu...

Page 45: ... and wheels Check tire air pressure wheel runout spokes for looseness and tires for wear Tighten sprocket bolts if necessary Check wheel bearings for looseness Lubricate wheel bearings with lithium soap based grease Replace wheel bearings 30 Moving parts and ca bles Lubricate 31 Throttle grip Check operation Check throttle grip free play and adjust if necessary Lubricate cable and grip housing NO ...

Page 46: ...lug 1 Check that the porcelain insulator around the center electrode of the spark plug is a medium to light tan the ideal color when the vehi cle is ridden normally TIP If the spark plug shows a distinctly dif ferent color the engine could be oper ating improperly Do not attempt to diagnose such problems yourself In stead have a Yamaha dealer check the vehicle 2 Check the spark plug for electrode ...

Page 47: ...il The transmission must be checked for oil leakage before each ride If any leakage is found have a Yamaha deal er check and repair the motorcycle In addition the transmission oil must be changed at the intervals specified in the periodic maintenance and lubrica tion chart 1 Start the engine warm it up for several minutes and then turn it off 2 Place the motorcycle on a level surface and hold it i...

Page 48: ...heck for the cause EAU20071 Coolant The coolant level should be checked before each ride In addition the cool ant must be changed at the intervals specified in the periodic maintenance and lubrication chart EAUM1296 To check the coolant level 1 Place the vehicle on a level sur face and hold it in an upright posi tion TIP The coolant level must be checked on a cold engine since the level varies wit...

Page 49: ...be pro tected against frost and corro sion If water has been added to the coolant have a Yamaha dealer check the antifreeze con tent of the coolant as soon as possible otherwise the effec tiveness of the coolant will be reduced ECA10473 EAUM1318 To change the coolant 1 Place the vehicle on a level sur face and let the engine cool if nec essary 2 Place a container under the en gine to collect the u...

Page 50: ... Yamaha dealer check the cooling system EAU48394 Cleaning the air filter element The air filter element should be cleaned or replaced at the intervals specified in the periodic maintenance and lubrica tion chart Clean or if necessary re place the air filter element more frequently if you are riding in unusually wet or dusty areas 1 Remove the seat See page 4 7 2 Remove the air filter element by re...

Page 51: ... upward and then install the wing bolt and its washer NOTICE Make sure that the air filter element is properly seated in the air filter case The engine should never be operated with out the air filter element in stalled otherwise the piston s and or cylinder s may become excessively worn ECA10482 NOTICE Be sure to install the washer with its curved side fac ing outward as shown ECA16692 8 Install ...

Page 52: ...ling speed The engine idling speed must be ad justed when necessary 1 Start the engine and thoroughly warm it up 2 Turn the throttle stop screw until the engine runs at the lowest pos sible speed 3 To increase the engine idling speed turn the throttle stop screw in direction a To decrease the engine idling speed turn the throt tle stop screw in direction b EAU48434 Adjusting the throttle grip free...

Page 53: ...essure The tire air pressure should be checked and if necessary adjusted before each ride WARNING EWA14382 Operation of this vehicle with im proper tire pressure may cause se vere injury or death from loss of control The tire air pressure must be checked and adjusted on cold tires i e when the temperature of the tires equals the ambient temperature The tire air pressure must be adjusted in accorda...

Page 54: ...ility for further use WARNING EWA10462 The front and rear tires should be of the same make and design other wise the handling characteristics of the vehicle may be different which could lead to an accident After extensive tests only the tires list ed below have been approved for this model by Yamaha WARNING EWA14391 Have a Yamaha dealer replace excessively worn tires Operat ing the motorcycle with...

Page 55: ...nd a short ened tire life EAU65775 Adjusting the clutch lever free play Measure the clutch lever free play as shown Periodically check the clutch lever free play and if necessary adjust it To increase the clutch lever free play turn the clutch lever free play adjuster in direction a To decrease the clutch lever free play turn the adjuster in di rection b TIP If the specified clutch lever free play...

Page 56: ...d If there is free play have a Yamaha dealer inspect the brake system WARNING EWA14212 A soft or spongy feeling in the brake lever can indicate the presence of air in the hydraulic system If there is air in the hydraulic system have a Yamaha dealer bleed the system be fore operating the vehicle Air in the hydraulic system will diminish the 1 Locknut 2 Clutch lever free play adjusting bolt 3 Clutch...

Page 57: ...ront and rear brake pads must be checked for wear at the intervals spec ified in the periodic maintenance and lubrication chart EAU22411 Front brake pads Each front brake pad is provided with a wear indicator which allows you to check the brake pad wear without hav ing to disassemble the brake To check the brake pad wear check the position of the wear indicator while applying the brake If a brake ...

Page 58: ...e the reservoir is parallel to the ground when checking NOTICE ECA17641 Brake fluid may damage painted surfaces or plastic parts Always clean up spilled fluid immediately Front brake Rear brake As the brake pads wear it is normal for the brake fluid level to gradually go down A low brake fluid level may indi cate worn brake pads or brake system leakage therefore be sure to check the brake pads for...

Page 59: ...ke fluid at the intervals specified in the periodic maintenance and lubrica tion chart In addition have the oil seals of the master cylinders and calipers as well as the brake hoses replaced at the intervals listed below or whenever they are damaged or leaking Oil seals Replace every two years Brake hoses Replace every four years EAU22762 Drive chain slack The drive chain slack should be checked b...

Page 60: ...ck nut on each side of the swingarm 2 To tighten the drive chain turn the drive chain slack adjusting bolt on each side of the swingarm in di rection a To loosen the drive chain turn the adjusting bolt on each side of the swingarm in di rection b and then push the rear wheel forward TIP Using the alignment marks on the drive chain pullers and the notch on each side of the swingarm make sure that b...

Page 61: ...e drive chain and soak it in solvent 2 Spray Yamaha chain lubricant or other suitable chain lubricant on the entire chain making sure that all side plates and rollers have been sufficiently oiled EAU23098 Checking and lubricating the cables The operation of all control cables and the condition of the cables should be checked before each ride and the ca bles and cable ends should be lubri cated if ...

Page 62: ...over is installed correctly it does not completely protect the cable from wa ter entry Therefore use care not to pour water directly onto the cover or cable when washing the vehicle If the cable or cover becomes dirty wipe clean with a moist cloth EAU23144 Checking and lubricating the brake and clutch levers The operation of the brake and clutch levers should be checked before each ride and the le...

Page 63: ...ion must be lubricated by a Yamaha dealer at the intervals specified in the periodic maintenance and lubrication chart EAUM2703 Lubricating the swingarm piv ots The swingarm pivots must be lubricat ed by a Yamaha dealer at the intervals specified in the periodic maintenance and lubrication chart Recommended lubricant Lithium soap based grease Recommended lubricant Molybdenum disulfide grease Recom...

Page 64: ... times to check if the front fork compresses and re bounds smoothly NOTICE ECA10591 If any damage is found or the front fork does not operate smoothly have a Yamaha dealer check or re pair it EAU23285 Checking the steering Worn or loose steering bearings may cause danger Therefore the operation of the steering must be checked as fol lows at the intervals specified in the periodic maintenance and l...

Page 65: ...ar wheel adjusting the chain or washing the ve hicle etc Check that the motorcycle is in a stable and level position before starting any maintenance TIP If a suitable maintenance stand is not available a strong wooden box can be used instead EAU24361 Front wheel EAU56372 To remove the front wheel WARNING EWA10822 To avoid injury securely support the vehicle so there is no danger of it falling over...

Page 66: ...3 Insert the wheel axle from the right side 4 Install the washer and axle nut 5 Tighten the axle nut to the speci fied torque EAU25081 Rear wheel EAU84051 To remove the rear wheel WARNING EWA10822 To avoid injury securely support the vehicle so there is no danger of it falling over 1 Loosen the axle nut 2 Place the motorcycle on a suitable stand See page 7 26 1 Wheel axle 1 1 1 Tightening torque A...

Page 67: ...disc have been removed otherwise the brake pads will be forced shut ECA11073 TIP If the drive chain is difficult to re move remove the wheel axle first For easy installation rest the drive chain on top of the swingarm To install the rear wheel 1 Make sure the brake pads have not been forced shut 2 Install the wheel the brake caliper bracket and drive chain pullers by inserting the wheel axle from ...

Page 68: ...self However should your motorcycle require any repair take it to a Yamaha dealer whose skilled technicians have the necessary tools experience and know how to service the motorcycle properly Use only genuine Yamaha replace ment parts Imitation parts may look like Yamaha parts but they are often inferior have a shorter service life and can lead to expensive repair bills WARNING EWA15142 When check...

Page 69: ...mpression There is no compression The engine does not start Have a Yamaha dealer check the vehicle Have a Yamaha dealer check the vehicle Remove the spark plug and check the electrodes 2 Ignition Wet Dry Wipe off with a dry cloth and correct the spark plug gap or replace the spark plug s Have a Yamaha dealer check the vehicle The engine does not start Check the compression Open the throttle halfwa...

Page 70: ...opped press down on the cap while turning it counterclockwise and then remove the cap TIP If coolant is not available tap water can be temporarily used instead provided that it is changed to the recommended cool ant as soon as possible Wait until the engine has cooled Check the coolant level in the reservoir and radiator The coolant level is OK The coolant level is low Check the cooling system for...

Page 71: ...TIP The roads of heavy snowfall areas may be sprayed with salt as a de icing method This salt can stay on the roads well into spring so be sure to wash the underside and chassis parts after riding in such areas Genuine Yamaha care and main tenance products are sold under the YAMALUBE brand NOTICE ECA26280 Improper cleaning can cause cos metic and mechanical damage Do not use high pressure washers ...

Page 72: ...e Use an old tooth brush or plastic bristle brush for hard to reach places NOTICE Use cold water if the vehicle has been exposed to salt Warm wa ter will increase salt s corrosive properties ECA26301 3 For windshield equipped vehicles Clean the windshield with a soft towel or sponge dampened with water and a pH neutral detergent If necessary use a high quality windshield cleaner YAMACLEAN Glass Cl...

Page 73: ...sprays and wax sparingly Wipe off excess afterwards WARNING EWA20660 Contaminants left on the brakes or tires can cause loss of control Make sure there is no lubricant or wax on the brakes or tires If necessary wash the tires with warm water and a mild deter gent If necessary clean the brake discs and pads with brake cleaner or acetone Before riding at higher speeds test the vehicle s braking per ...

Page 74: ... spark plug on the cylinder head so that the electrodes are grounded This will limit spark ing during the next step d Turn the engine over several times with the starter or kick starter This will coat the cylin der wall with oil WARNING To prevent damage or injury from sparking make sure to ground the spark plug elec trodes while turning the en gine over EWA10952 e Remove the spark plug cap from t...

Page 75: ...m Kickstarter Engine oil Engine oil YAMALUBE 2R Recommended brand Transmission oil Type Motor oil SAE 10W 40 type SG or higher Quantity 0 50 L 0 53 US qt 0 44 Imp qt Coolant quantity Radiator including all routes 0 50 L 0 53 US qt 0 44 Imp qt Fuel Recommended fuel Unleaded gasoline E10 acceptable Octane number RON 98 Fuel tank capacity 5 0 L 1 3 US gal 1 1 Imp gal Carburetor Type quantity PWK28 1 ...

Page 76: ...Specifications 9 2 9 Rear brake Type Hydraulic single disc brake Front suspension Type Telescopic fork Rear suspension Type Swingarm link suspension UB4B13E0 book Page 2 Wednesday August 25 2021 7 15 AM ...

Page 77: ...BER EAU26401 Vehicle identification number The vehicle identification number is stamped into the steering head pipe Record this number in the space pro vided TIP The vehicle identification number is used to identify your motorcycle and may be used to register your motorcy cle with the licensing authority in your area EAU26442 Engine serial number The engine serial number is stamped into the crankc...

Page 78: ... available at that time for inspection and repairs at such dealer s place of business 2 EMISSION CONTROL SYSTEM WARRANTY Yamaha Motor Corporation U S A also warrants to the ultimate purchaser and each subsequent purchaser of each applicable model Yamaha motorcycle covered by this warranty that the vehicle is designed built and equipped so as to conform at the time of sale with all U S emissions st...

Page 79: ...il oil filters air filters spark plugs and brake shoes Q Is the warranty transferable to second owners A Yes The remainder of the existing warranty can be transferred upon request The unit has to be inspected and re registered by an authorized Yamaha Motorcycle dealer for the policy to remain effective Q What responsibility does my dealer have under this warranty A Each Yamaha Motorcycle dealer is...

Page 80: ...se 4 6 Fuel tank cap 4 3 H Handlebar switch 4 1 I Identification numbers 10 1 K Kickstarter 4 7 L Labels location 1 1 M Matte color caution 8 1 P Parking 6 4 Part locations 3 1 Periodic maintenance and lubrication chart 7 2 R Rear suspension lubricating 7 24 S Safety information 2 1 Seat 4 7 Shifting 6 3 Shift pedal 4 2 Shift pedal checking 7 18 Shock absorber assembly adjusting 4 11 Sidestand 4 1...

Page 81: ...right right out of the box Yamalube Take care of your Yamaha with legendary Yamalube oils lubricants and care products They re formulated and approved by the toughest judges we know the Yamaha engineering teams that know your Yamaha from the inside out Genuine Yamaha Service Manuals Get the same factory manual for your vehicle that the technicians at your authorized Yamaha dealer use Service manua...

Page 82: ...DIC183 PRINTED IN JAPAN 2021 09 0 7 1 CR E ...

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Summary of Contents for YZ85 2021

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Yamaha YZ85 2021, Owner'S Manual, Page: 63 / 82

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Summary of Contents for YZ85 2021

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