Yamaha WR250X User Manual

PERIODIC MAINTENANCE AND ADJUSTMENT
6-3
2
3
4
5
6
7
8
9
EAU46862
TIP
 The annual checks must be performed every year, except if a kilometer-based maintenance, or for the UK, a
mileage-based maintenance, is performed instead.
 From 50000 km (30000 mi), repeat the maintenance intervals starting from 10000 km (6000 mi).
 Items marked with an asterisk should be performed by a Yamaha dealer as they require special tools, data and technical
skills.
EAU46911
Periodic maintenance chart for the emission control system
NO. ITEM CHECK OR MAINTENANCE JOB
ODOMETER READING
ANNUAL
CHECK
1000 km
(600 mi)
10000 km
(6000 mi)
20000 km
(12000 mi)
30000 km
(18000 mi)
40000 km
(24000 mi)
1 * Fuel line
• Check fuel hoses for cracks or
damage.

2 * Spark plug
• Check condition.
• Clean and regap.

• Replace. 
3 * Valves
• Check valve clearance.
• Adjust.
Every 40000 km (24000 mi)
4 * Fuel injection • Adjust engine idling speed. 
5 *
Muffler and exhaust
pipe
• Check the screw clamp(s) for
looseness.

6 *
Air induction
system
• Check the air cut-off valve, reed
valve, and hose for damage.
• Replace any damaged parts if
necessary.

32D-28199-EB.book 3 ページ ２０１３年７月３日 水曜日 午前１１時８分

Yamaha WR250X Specifications

General

Displacement	250cc
Bore x Stroke	77.0mm x 53.6mm
Compression Ratio	11.8:1
Fuel System	Fuel Injection
Final Drive	Chain
Front Tire	110/70-17
Rear Tire	140/70-17
Seat Height	35.2 in
Fuel Capacity	2.0 gal
Engine Type	Liquid-cooled DOHC 4-stroke; 4 valves
Ignition	TCI (Transistor Controlled Ignition)
Front Suspension	Inverted fork
Rear Suspension	Single shock
Front Brake	298mm hydraulic disc
Rear Brake	230mm hydraulic disc
Transmission	6-speed