Yamaha Z300C Owner'S Manual Download

Page: 56 / 84

Maintenance

EMU28521

Maintenance chart

Frequency of maintenance operations may be adjusted according to the operating condi-
tions, but the following table gives general guidelines. Refer to the sections in this chapter for
explanations of each owner-specific action.
The “

” symbol indicates the check-ups which you may carry out yourself.

The “

” symbol indicates work to be carried out by your Yamaha dealer.

Item

Actions

Initial

Every

10 hours

(1 month)

50 hours

months)

100

hours (6
months)

200

hours (1

year)

Anode(s) (external)

Inspection / replace-
ment

Anode(s) (internal)

Inspection / replace-
ment

Battery

Inspection / charging

Cooling water pas-
sages

Cleaning

Cowling clamp

Inspection

Fuel filter (can be dis-
assembled)

Inspection / replace-
ment

Fuel system

Inspection

Gear oil

Change

Greasing points

Greasing

Idling speed (EFI mod-
els)

Inspection / adjustment

PCV (Pressure Con-
trol Valve)

Inspection

Power trim and tilt unit

Inspection

Propeller and cotter pin

Inspection / replace-
ment

Shift link / shift cable

Inspection / adjustment

Thermostat

Inspection

Throttle link / throttle
cable / throttle pick-up
timing

Inspection / adjustment

Throttle position sen-
sor

Inspection / adjustment

Water pump

Inspection

High pressure fuel
pump drive belt

Inspection / replace-
ment

Summary of Contents for Z300C

Page 1: ...Z300C LZ300C OWNER S MANUAL 6D0 28199 11 U S A Edition LIT 18626 05 69...

Page 2: ...EMU25071 ZMU01690 Read this owner s manual carefully before operating your outboard motor...

Page 3: ...tor CAUTION ECM00700 A CAUTION indicates special precautions that must be taken to avoid damage to the outboard motor NOTE A NOTE provides key information to make procedures easier or clearer Yamaha c...

Page 4: ...tab with anode 18 Tilt support lever for power trim and tilt or hydro tilt model 18 Top cowling lock lever pull up type 18 Flushing device 19 Digital tachometer 19 Oil level indicator digital type 19...

Page 5: ...ng spark plug 53 Checking fuel system 54 Inspecting fuel filter 55 Cleaning fuel filter 55 Inspecting idling speed 56 Checking water in engine oil tank 57 Checking wiring and connectors 57 Exhaust lea...

Page 6: ...ber If a main key switch is equipped with the mo tor the key identification number is stamped on your key as shown in the illustration Record this number in the space provided for reference in case yo...

Page 7: ...fies engines that meet the Air Resources Board s 2001 ex haust emission standards Engines meeting these standards have 75 lower emissions than conventional carbureted two stroke en gines These engines...

Page 8: ...r tak ing drugs About 50 of all boating fatali ties involve intoxication Have an approved personal flotation de vice PFD on board for every occupant It is a good idea to wear a PFD whenever boating At...

Page 9: ...nto neutral and shut off the engine Be informed about boating safety Additional publications and information can be obtained from many organizations including the fol lowing United States Coast Guard...

Page 10: ...tes Coast Guard and local agen cies You should be aware of these rules and follow them whenever you encounter another vessel on the water Several sets of rules prevail according to geographic location...

Page 11: ...collision unless the Steering Rules are followed Meeting you are approaching another ves sel head on Crossing you are traveling across the oth er vessel s path Overtaking you are passing or being pass...

Page 12: ...shing ves sels under the International Rules Vessels with trolling lines are not considered fishing vessels Fishing vessels have the right of way regardless of position Fishing vessels cannot however...

Page 13: ...shapes and colors to show regulato ry or advisory information These markers are white with black letters and orange boarders They signify speed zones restrict ed areas danger areas and general infor...

Page 14: ...reign mat ter EMU25570 Gasoline If knocking or pinging occurs use a different brand of gasoline or premium unleaded fuel Gasohol There are two types of gasohol gasohol con taining ethanol and that con...

Page 15: ...e of applications but there may be uses where a propeller with a different pitch would be more appropriate For a greater operating load a smaller pitch propeller is more suit able as it enables the co...

Page 16: ...s on propeller removal and in stallation see page 58 EMU25770 Start in gear protection Yamaha outboard motors or Yamaha ap proved remote control units are equipped with start in gear protection device...

Page 17: ...ode YAMAHA set mode P S mpg Km L gph I h ECON SYNC TTL FUEL MANAGEMENT 13 14 15 16 19 17 18 1 2 12 11 9 10 8 7 6 5 3 4 2 ZMU01860 1 Top cowling 2 Top cowling lock lever s 3 Trim tab anode 4 Propeller...

Page 18: ...ate EMU26200 Neutral interlock trigger To shift out of neutral first pull the neutral in terlock trigger up 1 Power trim and tilt switch 2 Remote control lever 3 Neutral interlock trigger 4 Neutral th...

Page 19: ...ol lever is in the neutral position After the button is pushed the throttle be gins to open after the remote control lever is moved at least 35 After using the free accelerator return the remote contr...

Page 20: ...plate stopping ignition to the engine This will prevent the boat from running away un der power WARNING EWM00120 Attach the engine stop switch lanyard to a secure place on your clothing or your arm or...

Page 21: ...sition the starter motor turns to start the en gine When the key is released it returns automatically to the on position EMU26140 Power trim and tilt switch on remote control The power trim and tilt s...

Page 22: ...ld increase the risk of falling overboard and could distract the operator increasing the risk of collision with another boat or an obsta cle NOTE For instructions on using the power trim and tilt swit...

Page 23: ...veer the right starboard side turn the trim tab end to the starboard side B in the figure CAUTION ECM00840 The trim tab also serves as an anode to protect the engine from electrochemical corrosion Nev...

Page 24: ...he main switch is turned on and will return to normal thereafter EMU26550 Oil level indicator digital type This indicator shows the engine oil level If the oil level falls below the lower limit the wa...

Page 25: ...in switch is first turned on all segments of the display come on as a test After a few seconds the gauge will change to normal operation Watch the gauge when turning on the main switch to make sure al...

Page 26: ...display format in the following pat tern Total hours Trip hours Display off Resetting the trip hours Simultaneously pressing the set and mode buttons for more than 1 second while the trip hours are di...

Page 27: ...is indicated by eight segments When all segments are showing the fuel tank is full CAUTION ECM00860 The Yamaha fuel tank sensor differs from conventional sensors Incorrectly setting the selector switc...

Page 28: ...ver a one hour period at the cur rent rate of engine operation If twin engines are installed on your boat the fuel flow meter displays the total fuel flow of both the port and starboard engines It als...

Page 29: ...To reset the total fuel consumption to zero press the set and mode buttons at the same time EMU26770 Fuel economy This gauge displays the distance per liter or gallon when cruising and is only for ref...

Page 30: ...in fuel consumption EMU26780 Twin engine speed synchronizer This gauge displays the difference in engine speed r min between the port and star board engines for reference purposes when synchronizing...

Page 31: ...ing system has activated stop the engine and check the cooling water inlet for clogging NOTE Dual engine drive users Should the overheat warning system of one engine activate the engine will slow down...

Page 32: ...ivated stop the engine and check for the cause NOTE The warning for oil filter clogging is similar to the warnings for low oil level and overheat ing To make troubleshooting easier check for engine ov...

Page 33: ...does not have a capacity plate consult the boat manufacturer The information presented in this sec tion is intended as reference only It is not possible to provide complete in structions for every pos...

Page 34: ...tion and the desired use Test runs at different heights can help deter mine the optimum mounting height Con sult your Yamaha dealer or boat manufacturer for further information on de termining the pro...

Page 35: ...ng at full throttle for more than 5 minutes at a time Let the engine cool between full throttle runs Vary en gine speed occasionally 5 After the first 10 hours Operate the engine normally EMU27100 Pre...

Page 36: ...rating the engine after a long peri od 12 months of storage proceed as fol lows 1 Start the engine Leave it idling WARNING EWM00090 Do not touch or remove electrical parts when starting or during oper...

Page 37: ...amaha recommends the use of Ring Free Fuel Additive available from your Yamaha dealer Ring Free Fuel Addi tive has repeatedly proven its ability to clean combustion deposits from inside the engine not...

Page 38: ...ne normally CAUTION ECM00570 When the engine is operated for the first time or stored for a period of time a min imum of 5 liters 5 3 US qt 4 4 Imp qt of oil should be kept in the remote oil tank Othe...

Page 39: ...than 300 cm3 0 32 US qt 0 26 Imp qt 1500 cm3 1 6 US qt 1 31 Imp qt or less Add oil see page 32 Red Yellow Green 300 cm3 0 32 US qt 0 26 Imp qt or less more than 1500 cm3 1 6 US qt 1 31 Imp qt Check o...

Page 40: ...oxide a col orless odorless gas which could cause brain damage or death when inhaled Symptoms include nausea dizziness and drowsiness Keep cockpit and cab in areas well ventilated Avoid blocking exhau...

Page 41: ...ne power the boat could slow rapidly This could cause people and objects in the boat to be thrown forward 3 Turn the main switch to on NOTE Dual engine users When the main switch is turned on the buzz...

Page 42: ...at all times while the engine is run ning overheating and serious damage could occur Stop the engine and check whether the cooling water inlet on the lower case or the cooling water pilot hole is bloc...

Page 43: ...equipped tiller control 1 Place the throttle grip in the fully closed position 2 Move the gear shift lever quickly and firmly from neutral to reverse If equipped remote control Pull up the neutral in...

Page 44: ...orrect trim is also affected by variables such as the load in the boat sea conditions and running speed WARNING EWM00740 Excessive trim for the operating condi tions either trim up or trim down can ca...

Page 45: ...pped EMU27910 Adjusting boat trim When the boat is on plane a bow up attitude results in less drag greater stability and effi ciency This is generally when the keel line of the boat is up about 3 to 5...

Page 46: ...tor should be tilted up to protect the propeller and casing from damage by colli sion with obstructions and also to reduce salt corrosion WARNING EWM00220 Be sure all people are clear of the out board...

Page 47: ...it with the tilt support knob or tilt support lever Otherwise the outboard motor could fall back down suddenly if oil in the power trim and tilt unit loses pres sure 5 If the trim rods equipped once...

Page 48: ...esired position EMU28060 Cruising in shallow water The outboard motor can be tilted up partially to allow operation in shallow water EMU28090 Power trim and tilt models power tilt models The outboard...

Page 49: ...position press the power trim tilt switch and slowly tilt the out board motor down EMU28190 Cruising in other conditions Cruising in salt water After operating in salt water wash out the cooling wate...

Page 50: ...plug gap 1 5 1 6 mm 0 059 0 063 in Control system Remote control Starting system Electric Battery Min cold cranking amps CCA SAE 512 0 A Min marine cranking amps MCA ABYC 675 0 A Min reserve capacity...

Page 51: ...mal running position If there is insufficient road clearance in this position then trailer the outboard motor in the tilt po sition using a motor support device such as a transom saver bar Consult you...

Page 52: ...parts when starting or during operation Keep hands hair and clothes away from the flywheel and other rotating parts while the engine is running NOTE When using the flushing attachment maintain adequat...

Page 53: ...s poisonous and highly caustic Always follow these preventive mea sures Avoid bodily contact with electrolytic fluid as it can cause severe burns or permanent eye injury Wear protective eye gear when...

Page 54: ...garden hose connector on the fitting on the bottom cowling Tighten the connec tor securely CAUTION ECM00540 Do not leave the garden hose connector loose on the bottom cowling fitting or let the hose h...

Page 55: ...evices and sys tems may be performed by any marine engine repair establishment or individual All warranty repairs however including those to the emission control system must be performed by an authori...

Page 56: ...Inspection replace ment Anode s internal Inspection replace ment Battery Inspection charging Cooling water pas sages Cleaning Cowling clamp Inspection Fuel filter can be dis assembled Inspection repl...

Page 57: ...igh pressure fuel pump oil level Inspection filling Oil pump Inspection adjustment Oil tank water drain Inspection cleaning Spark plug s Cleaning adjustment replacement Item Actions Initial Every 10 h...

Page 58: ...60 When removing or installing a spark plug be careful not to damage the insulator A damaged insulator could allow external sparks which could lead to explosion or fire The spark plug is an important...

Page 59: ...to the correct torque NOTE If a torque wrench is not available when you are fitting a spark plug a good estimate of the correct torque is 1 4 to 1 2 a turn past fin ger tight Have the spark plug adju...

Page 60: ...on a hot or running engine Allow the engine to cool There will be fuel in the fuel filter Keep away from sparks cigarettes flames or other sources of ignition This procedure will allow some fuel to s...

Page 61: ...e the throttle control lever from the start position during warm up The boat could unexpectedly start to move which could result in an accident CAUTION ECM00490 This procedure must be performed while...

Page 62: ...trim and tilt system WARNING EWM00430 Never get under the lower unit while it is tilted even when the tilt support lever is locked Severe injury could occur if the outboard motor accidentally falls M...

Page 63: ...from the spark plugs Also place the shift control in neutral turn the main switch to off and re move the key and remove the lanyard from the engine stop switch Turn off the battery cut off switch if...

Page 64: ...the boat could move in the opposite direction from that expected CAUTION ECM00340 Be sure to install the thrust washer be fore installing the propeller otherwise the lower case and propeller boss cou...

Page 65: ...alling it 4 Remove the oil level plug to allow the oil to drain completely CAUTION ECM00710 Inspect the used oil after it has been drained If the oil is milky water is getting into the gear case which...

Page 66: ...ys follow these preventive mea sures Avoid bodily contact with electrolytic fluid as it can cause severe burns or permanent eye injury Wear protective eye gear when han dling or working near batteries...

Page 67: ...charging batteries EMU29361 Connecting the Battery WARNING EWM00570 Mount the battery holder securely in a dry well ventilated vibration free loca tion in the boat Install a fully charged bat tery in...

Page 68: ...op cowling Check the fitting of the top cowling by push ing it with both hands If it is loose have it re paired by your Yamaha dealer EMU29400 Coating the boat bottom A clean hull improves boat perfor...

Page 69: ...A Have serviced by a Yamaha dealer Q Is shift lever in gear A Shift to neutral Engine will not start starter operates Q Is fuel tank empty A Fill tank with clean fresh fuel Q Is fuel contaminated or s...

Page 70: ...damaged A Have serviced by a Yamaha dealer Q Is air vent screw on fuel tank closed A Open air vent screw Q Is choke knob pulled out A Return to home position Q Is motor angle too high A Return to nor...

Page 71: ...s fouled or of incorrect type A Inspect spark plug s Clean or replace with recommended type Q Are weeds or other foreign matter tangled on gear housing A Remove foreign matter and clean lower unit Q...

Page 72: ...otor can be seriously damaged by a collision while operating or trailering Damage could make the out board motor unsafe to operate If the outboard motor hits an object in the wa ter follow the procedu...

Page 73: ...ely blows again EMU29520 Power trim and tilt will not operate If the engine cannot be tilted up or down with the power trim and tilt the power tilt because of a discharged battery or a failure with th...

Page 74: ...n the engine oil tank Do not use this emergency procedure unless the oil level warning indicators are working 1 Remove the top cowling 2 Turn on the main switch 3 Lift the emergency switch to pump re...

Page 75: ...wash away mud salt sea weed and so on with fresh water 2 Remove the spark plugs and face the spark plug holes downward to allow any water mud or contaminants to drain 3 Drain the fuel from the vapor...

Page 76: ...71 Consumer information EMU29811 Important warranty information for U S A and Canada...

Page 77: ...Consumer information 72...

Page 78: ...Consumer information 73 EMU29820 YAMAHA MOTOR CORPORATION U S A OUTBOARD MOTOR TWO YEAR LIMITED WARRANTY...

Page 79: ...Consumer information 74...

Page 80: ...Consumer information 75...

Page 81: ...Consumer information 76 EMU29840 IMPORTANT WARRANTY INFORMATION IF YOU USE YOUR YAMAHA OUTSIDE U S A OR CANADA...

Page 82: ...Printed in Japan August 2003 1 4 1 Printed on recycled paper...

Page 83: ...d tail OUTBOARD MOTOR MODEL AND SERIAL NUMBER From I D label on clamp bracket MOD LE ET NO DE S RIE DU MOTEUR HORS BORD sur l tiquette d identification de la presse de fixation For Dealer Use Only A...

Page 84: ...PLACE POSTAGE HERE ATTN WARRANTY DEPARTMENT Warranty card 2 27 02 11 47 AM Page 2...

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