Yamaha WR250F(Y) 2009, Owner'S Service Manual, Page: 54 / 224

3-1
PERIODIC MAINTENANCE CHART FOR THE EMISSION
CONTROL SYSTEM (For Canada)
REGULAR INSPECTION AND ADJUSTMENTS
PERIODIC MAINTENANCE CHART FOR THE EMISSION CONTROL SYSTEM (For Canada)
• From 4,200 mi (7,000 km) or 9 months, repeat the maintenance intervals starting from 1,800 mi (3,000 km) or 3 months.
• Items marked with an asterisk should be performed by a Yamaha dealer as they require special tools, data and technical
skills.
No. ITEM CHECKS AND MAINTENANCE JOBS
INITIAL
ODOMETER
READINGS
600 mi
(1,000
km) or 1
month
1,800 mi
(3,000
km) or 3
months
3,000 mi
(5,000
km) or 6
months
1 * Fuel line
Check fuel hoses for cracks or damage.
√ √ √
Replace if necessary.
2 Spark plug
Check condition.
√ √ √
Adjust gap and clean.
3 * Valve clearance
Check and adjust valve clearance when en-
gine is cold.
√ √ √
4 * Air filter element
Clean with solvent and apply foam air-filter oil
or equivalent oil.
√ √ √
Replace if necessary.
5 * Breather system
Check ventilation hose for cracks or damage
and drain any deposits.
√ √ √
Replace if necessary.
6 * Carburetor
Check engine idling speed and starter opera-
tion.
√ √ √
Adjust if necessary.
7 Exhaust system
Check for leakage.
√ √ √
Tighten if necessary.
Replace gasket(s) if necessary.
8 Engine oil Change (warm engine before draining).
√ √ √
9 Engine oil filter element Replace.
√ √ √
10 Engine oil strainer Clean.
√ √ √
11 * Air induction system
Check the hose for damage.
√ √
Replace any damaged parts if necessary.