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MAINTENANCE INTERVALS/
PERIODIC MAINTENANCE AND LUBRICATION 
EC300000 
REGULAR INSPECTION AND ADJUSTMENTS 
MAINTENANCE INTERVALS 
The following schedule is intended as a general guide to maintenance and lubrication. Bear in mind
that such factors as weather, terrain, geographical location, and individual usage will alter the
required maintenance and lubrication intervals. If you are a doubt as to what intervals to follow in
maintaining and lubricating your machine, consult your Yamaha dealer. 
PERIODIC MAINTENANCE AND LUBRICATION 
Dealer 
NoteItem Checks and maintenance jobsInitial Every
10 hours 
(1 month)60 hours 
(6 months)120 hours 
(12 months)
* Fuel lineCheck fuel hoses for cracks or damage.
Replace if necessary. 
Spark plugCheck condition.
Clean, regap or replace if necessary. 
* ValvesCheck valve clearance.
Adjust if necessary. 
Air filter Clean or replace if necessary. 
* CarburetorCheck engine idling speed and starter operation.
Adjust if necessary. 
Exhaust systemsCheck for leakage.
Retighten if necessary.
Replace gasket if necessary. 
Engine oilCheck oil level and vehicle for oil leakage.
Correct if necessary.
Change. (Warm engine before draining.) 
ClutchCheck operation.
Adjust or replace cable. 
* Front brakeCheck operation.
Adjust brake lever free play and replace brake 
shoes if necessary.Every ride
* Rear brakeCheck operation.
Adjust brake pedal free play and replace brake 
shoes if necessary.Every ride
* WheelsCheck balance, runout, spoke tightness and for 
damage.
Tighten spokes and rebalance, replace if 
necessary. 
* TiresCheck tread depth and for damage.
Replace if necessary.
Check air pressure.
Correct if necessary. 
* Wheel bearingsCheck bearing for looseness or damage.
Replace if necessary. 
* SwingarmCheck swingarm pivoting point for play.
Correct if necessary.
Lubricate with lithium soap base grease. 
Drive chainCheck chain slack.
Adjust if necessary. Make sure that the rear wheel 
is properly aligned.
Clean and lubricate.Every ride
* Steering bearingsCheck bearing play and steering for roughness.
Correct accordingly.
Lubricate with lithium soap base grease every 120 
hours. 
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PRE-OPERATION INSPECTION AND MAINTENANCE 
*: Since these items requires special tools data and technical skills, they should be serviced.
* 
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: For USA
SERVICE NOTES:
 
No. 1. DRIVE CHAIN: In addition to tension and alignment, chain must be lubricated every
0.5 ~ 1.0 hour. If unit is subjected to extremely hard usage and wet weather riding, chain
must be checked constantly. See “Lubrication Intervals” for additional details. 
No. 2. AIR FILTER: Remove and clean filter every 20 ~ 40 hours. 
PRE-OPERATION INSPECTION AND MAINTENANCE 
Before riding for break-in operation, practice or a race, make sure the machine is in good operating
condition.
Before using this machine, check the following points.  
GENERAL INSPECTION AND MAINTENANCE  
* Chassis fastenersMake sure that all nuts, bolts and screws are 
properly tightened.
Tighten if necessary. 
SidestandCheck operation.
Lubricate and repair if necessary. 
* Spark arrester 
* 
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Clean. 
* Front forkCheck operation and for oil leakage.
Correct accordingly. 
*Rear shock 
absorber assemblyCheck operation and shock absorber for oil 
leakage.
Replace shock absorber assembly if necessary. 
Item Routine Page
Brake Check operation/adjustment. P3-11
Engine oil Change oil as required. P3-5 ~ 7
Drive chain Check alignment/adjustment/lubrication. P3-12
Spark plug Check color/condition. P3-19
Throttle Check for proper throttle cable operation. P3-3
Air filter Foam type – must be clean and damp oil always P3-3 ~ 4
Wheels and tires Check pressure/runout/spoke tightness/bead stopper/axle nuts. P3-15 ~ 17
Fittings/fasteners Check all – tighten as necessary. P2-13Dealer 
NoteItem Checks and maintenance jobsInitial Every
10 hours 
(1 month)60 hours 
(6 months)120 hours 
(12 months) 
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