Honda CRF250R User Manual

98 Servicing Your Honda
Suspension
5. Place the lower end (axle holder) of the slider
in a vise with a piece of wood or soft jaws to
avoid to damage.
NOTICE
Over-tightening the vise can damage the axle
holder.
6. Install the push rod (4) into the fork damper
piston rod until it stops.
7. Apply fork oil to a new O-ring (5) and install it
to the fork center bolt (6).
Install the fork center bolt to the fork damper
piston rod.
Tighten the fork center bolt fully by hand.
8. Measure the clearance between the fork center
bolt lock nut (2) and fork center bolt (6).
Standard: 0.04 in (1.0 mm) or more
If the clearance is out of specification, check the
fork center bolt lock nut and fork center bolt
installation.
9. Tighten the fork center bolt lock nut (2) to the
fork center bolt (6) closely by hand. Tighten
the fork center bolt lock nut to the specified
torque:
21 lbf·ft (28 N·m, 2.9 kgf·m)
10. Apply locking agent to the fork center bolt
threads.
Install the fork center bolt (6) to the axle holder
and tighten it to the specified torque:
51 lbf·ft (69 N·m, 7.0 kgf·m)
11. Measure the length between the axle holder
and outer tube.
Standard: 12.2 ± 0.1 in (311 ± 2 mm)
12. Compare the length (7) at assembly and at
disassembly. They should be the same length.
If the length at assembly is longer than at
disassembly, check the fork center bolt and fork
center bolt lock nut installation.
(4) push rod
(5) O-ring (new)
(6) fork center bolt
(4) (6) (5)
(2) fork center bolt lock nut (6) fork center bolt
(2) fork center bolt lock nut
(6) fork center bolt
(2)
(6)
0.04 in (1.0 mm)
or more
(2) (6)
(6) fork center bolt
(7) length
(6)
(7)

Honda CRF250R Specifications

General

Engine Type	Liquid-cooled single-cylinder four-stroke
Displacement	249cc
Bore x Stroke	79.0mm x 50.9mm
Compression Ratio	13.9:1
Starter	Electric
Transmission	Close-ratio 5-speed
Final Drive	Chain
Front Brake	Single 260mm disc with twin-piston caliper
Rear Brake	Single 240mm disc
Front Tire	80/100-21
Rear Tire	100/90-19
Wheelbase	58.3 inches
Seat Height	37.8 inches
Ground Clearance	13.1 inches
Fuel Capacity	1.7 gallons
Valve Train	Unicam OHC, four-valve
Induction	Programmed Fuel Injection (PGM-FI)
Throttle Bore	44mm
Ignition	Full transistorized ignition
Front Suspension	49mm inverted Showa coil-spring fork with rebound and compression damping adjustability; 12.2 inches travel
Rear Suspension	Pro-Link Showa single shock with adjustable spring preload, rebound and compression damping; 12.4 inches travel
Rake	27.2°
Trail	115mm (4.5 inches)