Honda CRF250X 2006 User Manual

(1) upper drive chain roller (2) lower drive chain roller
96 Servicing Your Honda
Drive Chain
Drive Chain Sliders
1. Check the chain slider (1) for wear.
If the wear is 3/16 in (5 mm) or more, replace
it.
Lubrication
Commercially prepared drive chain lubricants
may be purchased at most motorcycle shops and
should be used in preference to motor oil. Pro
Honda Chain Lube or an equivalent, or SAE 80
or 90 gear oil is recommended.
Saturate each chain joint so that the lubricant
penetrates the space between adjacent surfaces of
the link plates and rollers.
(1) chain slider
2. Check the chain guide slider (2) for wear.
Replace the chian guide slider if it is worn to
the bottom of the wear limit groove (3).
(2) chain guide slider
(3) wear limit groove
Drive Chain Rollers
1. Measure the diameter of the drive chain
rollers (1). Replace them if below the service
limit.
SERVICE LIMIT:
UPPER ROLLER: 1.1 in (29 mm)
LOWER ROLLER: 1.2 in (31 mm)
2. Replace the roller if necessary as follows.
Install the upper drive chain roller (Green) (1)
and lower drive chain roller (Black) (2) as
shown.
Tighten the drive chain roller bolt and nut to
the specified torque.
Upper roller bolt:
9 lbf·ft (12 N·m, 1.2 kgf·m)
Lower roller nut: 9 lbf·ft (12 N·m, 1.2 kgf·m)
(1)
(2) (3)
(1)
(2)

Honda CRF250X 2006 Specifications

General

Engine Type	Liquid-cooled single-cylinder four-stroke
Displacement	249 cc
Valve Train	Unicam, four-valve
Induction	Keihin 37 mm flat-slide carburetor
Transmission	5-speed
Front Brake	Single 240 mm disc with twin-piston caliper
Rear Brake	Single 240 mm disc
Front Tire	80/100-21
Rear Tire	100/100-18
Wheelbase	58.3 inches
Ground Clearance	13.6 inches
Bore x Stroke	78.0mm x 52.2mm
Final Drive	Chain
Front Suspension	47 mm inverted Showa cartridge fork with 16-position rebound damping adjustability; 12.4 inches travel
Rear Suspension	Pro-Link Showa single shock with spring preload, 17-position rebound damping adjustability, and compression damping adjustment separated into low-speed (13 positions) and high-speed (3.5 turns); 12.4 inches travel