Specifications and technical data
Honda CRF 250 X, 2008, 28 PS, 21 kw
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spare parts for Honda CRF 250 X, 2008, 28 PS, 21 kw
Year of manufacture
2008
No. of cylinders
1
Cylinder capacity
250 cc
Power
28 PS, 21 kw
Specifications and technical data
Engine
Number of cylinders
1
Valves per cylinder
4
Engine
Throttle grip free play
3.0 - 5.0 Millimetre
Ignition coil primary resistance
(at 20 °C)
(at 20 °C)
0.07 - 0.10 Ohms
Ignition coil secondary resistance
(at 20 °C)
(at 20 °C)
4600 - 6800 Ohms
Valve clearance
Cold engine
Inlet
0.09 - 0.15 Millimetre
Exhaust
0.25 - 0.31 Millimetre
Idle speed
1600 - 1800 Revolutions per minute
Spark plugs (make and type)
(Standard)
(Standard)
NGK IMR8C9H
Spark plugs (make and type)
(Standard)
(Standard)
DENSO VUH24D
Spark plugs (make and type)
(Optional)
(Optional)
NGK IMR9C9H
Spark plugs (make and type)
(Optional)
(Optional)
DENSO VUH27D
Spark plug gap
0.8 - 0.9 Millimetre
Number of spark plugs
1
Compression pressure
Pressure
3.92/800
Engine
Cap pressure
0.9 - 1.2
Front disc brakes
Disc thickness, front
3.0 Millimetre
Disc thickness, front, minimum
2.5 Millimetre
Disc run-out, maximum (front)
0.25 Millimetre
Rear disc brakes
Disc thickness, rear
4.0 Millimetre
Disc thickness, rear, minimum
3.5 Millimetre
Disc run-out, maximum (rear)
0.25
Wheels and tyres
Tyre size and pressure
Front tyre size
(European market version)
(European market version)
90/90 - 21M/C 54R
Front tyre size
(Australian and New Zealand market versions)
(Australian and New Zealand market versions)
80/100 - 21 51M
Front tyre pressure
1.0 (bar)
Rear tyre size
(European market version)
(European market version)
120/90 - 18M/C 65R
Rear tyre size
(Australian and New Zealand market versions)
(Australian and New Zealand market versions)
100/100 - 18 59M
Rear tyre pressure
1.0
Engine
Engine sump, including filter
Plug location
(Drain plug)
(Drain plug)
Plug location
(Filler plug)
(Filler plug)
Oil filter location
Initial filling
0.9 Litre
Refilling
0.7 Litre
Cooling system
Initial filling
1.2 Litre
Refilling
1.1 Litre
Coolant drain plug location
Manual transmission
Manual transmission
Gearbox refill after overhaul
0.75 Litre
Gearbox refill
0.67 Litre
Plug location
(Filler plug)
(Filler plug)
Plug location
(Drain plug)
(Drain plug)
Suspension
Front fork
Left fork leg tube
(2007)
(2007)
0.348 Litre
Left fork leg tube
(2008)
(2008)
0.345 Litre
Left fork leg damper
(2007 - 2008)
(2007 - 2008)
0.192 Litre
Right fork leg tube
(2007)
(2007)
0.348 Litre
Right fork leg tube
(2008)
(2008)
0.345 Litre
Right fork leg damper
(2007 - 2008)
(2007 - 2008)
0.192 Litre
General
Fuel tank
(2007)
(2007)
8.3 Litre
Fuel tank
(2008)
(2008)
7.3 Litre
Fuel tank, reserve
(2007)
(2007)
1.5 Litre
Fuel tank, reserve
(2008)
(2008)
1.6
Clutch system
Clutch plate thickness
2.92 - 3.08 Millimetre
Clutch plate thickness, minimum
2.85 Millimetre
Clutch spring length
38.8 Millimetre
Clutch spring length, minimum
38.0 Millimetre
Clutch lever free play
10 - 20
Engine
Note: Always renew stretch bolts and self-locking nuts
Cylinder head (nuts)
(Threads and contact surface lightly oiled)
(Threads and contact surface lightly oiled)
39 (Nm)
Tightening sequence:
(Tighten the nuts in a criss-cross pattern)
(Tighten the nuts in a criss-cross pattern)
Renew the gasket
Valve cover
(Apply sealant)
(Apply sealant)
10 (Nm)
If the gasket is damaged or stretched, renew it
Engine oil drain plug
(Renew the washer)
(Renew the washer)
16 (Nm)
Spark plugs
16 (Nm)
Camshaft bearing cover
(Tighten the bolts in several stages, in a criss-cross pattern)
(Tighten the bolts in several stages, in a criss-cross pattern)
16 (Nm)
Rocker shaft
6 (Nm)
Timing chain tensioner
(Apply thread-locking compound)
(Apply thread-locking compound)
12 (Nm)
Flywheel
(Threads and contact surface lightly oiled)
(Threads and contact surface lightly oiled)
64 (Nm)
Exhaust manifold
(Renew the gasket)
(Renew the gasket)
21 (Nm)
Front disc brakes
Brake master cylinder clamp
9.9 (Nm)
Front brake caliper guide pin
(Apply thread-locking compound)
(Apply thread-locking compound)
22 (Nm)
Front brake caliper
(Apply thread-locking compound)
(Apply thread-locking compound)
30 (Nm)
Brake hose to caliper
(Renew the washer)
(Renew the washer)
34 (Nm)
Front brake disc
16 (Nm)
Brake pad retaining pin
18 (Nm)
Rear disc brakes
Brake master cylinder clamp
13 (Nm)
Rear brake caliper guide pin
27 (Nm)
Brake hose to caliper
(Renew the washer)
(Renew the washer)
34 (Nm)
Rear brake disc
16 (Nm)
Brake pad retaining pin
18 (Nm)
Manual transmission
Manual transmission drain plug
(Renew the washer)
(Renew the washer)
16
Clutch system
Clutch
(Threads and contact surface lightly oiled)
(Threads and contact surface lightly oiled)
80 (Nm)
Clutch spring bolts
(Tighten the bolts in several stages, in a criss-cross pattern)
(Tighten the bolts in several stages, in a criss-cross pattern)
12 (Nm)
Final drive
Final drive front sprocket
31 (Nm)
Final drive rear sprocket
32 (Nm)
Suspension
Note: Always renew stretch bolts and self-locking nuts
Front wheel axle clamp
20 (Nm)
Front wheel axle nut
88 (Nm)
Rear wheel axle nut
127 (Nm)
Front fork cap
30 (Nm)
Wheel spokes
3.68
General
Headlight
(HS1)
(HS1)
35/35
Engine oil (Preferred lubricant specification)
API SG + JASO MA SAE 10W-30 Above -10 °C
Brake fluid
DOT 4
Fork oil
Fork Oil SS-47 SAE 10W
Front fork
Left fork leg tube (2007)
0.348 Litre
Left fork leg tube (2008)
0.345 Litre
Left fork leg damper (2007 - 2008)
0.192 Litre
Right fork leg tube (2007)
0.348 Litre
Right fork leg tube (2008)
0.345 Litre
Right fork leg damper (2007 - 2008)
0.192