Honda CRF250R 2005 User Manual

This section tells you how to fine tune your CRF
for maximum competition performance.
Initial suspension adjustments should be
performed after a minimum of two hours of easy
break-in time.
Optional front and rear suspension springs are
available in both firmer and softer than standard
rates, in order to tailor your CRF specifically for
your weight, riding style and course conditions.
Follow the instructions given in the rear
suspension sag setting section of Rear
Suspension Adjustments to determine if your
combined rider and sprung machine weight (rider
fully dressed for competition and machine
coolant, oil and fuel levels ready for competition)
requires an optional firmer or softer rear spring.
The need for either optional rear spring may need
to be balanced by installing the optional fork
springs of a similar rate.
Front Suspension Adjustments...........................94
Rear Suspension Adjustments..........................107
Suspension Adjustments for Track
Conditions ...................................................111
Suspension Adjustment Guidelines..................112
Carburetor Adjustments & Tuning Tips...........115
Chassis Adjustments.........................................127
Gearing .............................................................128
Tire Selection for Track Conditions.................129
Personal Fit Adjustments .................................130
Adjustments for Competition 93
Adjustments for Competition

Honda CRF250R 2005 Specifications

General

Engine Type	Single-cylinder, four-stroke
Displacement	249 cc
Bore x Stroke	78.0mm x 52.2mm
Compression Ratio	12.5:1
Transmission	5-speed
Valve Train	Unicam, four-valve
Ignition	CDI
Final Drive	Chain
Front Suspension	47 mm inverted Showa cartridge fork with 16-position rebound and 16-position compression damping adjustability; 12.4 inches travel
Front Brake	Single 240 mm disc with twin-piston caliper
Rear Brake	Single 240 mm disc
Front Tire	80/100-21
Rear Tire	100/90-19
Wheelbase	58.3 inches
Fuel Capacity	1.9 gallons
Fuel System	37mm Keihin FCR carburetor
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
Curb Weight	204 lbs