Yamaha YFZ450S Offroad Vehicle User Manual


 
8-3
EBU00261
PERIODIC MAINTENANCE/LUBRICATION
ITEM ROUTINE
INITIAL EVERY
1
month
3
months
6
months
6
months
1
year
Valves*
Check valve clearance.
Adjust if necessary.
Cooling system
Check for coolant leakage.
Repair if necessary.
Replace coolant every 24 months.
Spark plug
Check condition.
Adjust gap and clean.
Replace if necessary.
Air filter element
Clean.
Replace if necessary.
Every 2040 hours
(More often in wet or dusty areas.)
Carburetor*
Check starter (choke) operation.
Adjust engine idling speed.
Crankcase breather
system*
Check breather hose for cracks or damage.
Replace if necessary.
Exhaust system*
Check for leakage.
Tighten if necessary.
Replace gasket if necessary.
Spark arrester
Clean.
Fuel line*
Check fuel hose for cracks or damage.
Replace if necessary.
Engine oil
Replace (Warm engine before draining).
Engine oil filter element
Replace.
Drive chain
Check and adjust slack/alignment/clean/lube.
Front brake*
Check free play/operation/fluid leakage/
See NOTE Page 8-4.
Correct if necessary.
Rear brake*
Check operation/fluid leakage/See NOTE Page 8-4.
Correct if necessary.
Clutch*
Check operation.
Adjust if necessary.
U5TG10.book Page 3 Monday, April 7, 2003 8:50 PM