Honda CRF450X 2009, Owner'S Manual & Competition Handbook

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HONDA O/M CRF450X (Eu) 3RMEY620 00X3R-MEY-6200
This section tells you how to fine tune your CRF
for maximum competition performance.
Initial suspension adjustments should be
performed after a minimum of 2 hours of easy
break-in time.
Optional front and rear suspension springs are
available in both stiffer 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 stiffer 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.........................112
Front Suspension Air Pressure....................112
Front Suspension Damping ........................112
Fork Springs................................................113
Front Suspension Disassembly ...................113
Damper Oil Change ....................................117
Fork Assembly ............................................120
Rear Suspension Adjustments ..........................126
Rear Suspension Spring Pre-Load..............126
Rear Suspension Damping..........................127
Rear Suspension Race Sag .........................128
Suspension Adjustments for Track
Conditions ........................................................130
Suspension Adjustment Guidelines..................131
Carburetor Adjustments & Tuning Tips ...........134
Carburetor Components ..............................134
Carburetor Removal....................................136
Carburetor Disassembly..............................137
Carburetor Assembly ..................................139
Idle Speed Adjustment................................140
Steering Damper Adjustment ...........................141
Steering Damper Adjustment......................141
Steering Damper Adjustment Guidelines.........142
Chassis Adjustments.........................................143
Rear End .....................................................143
Fork Height/Angle ......................................143
Wheelbase ...................................................143
Gearing .............................................................144
Tyre Selection for Track Conditions ................145
Personal Fit Adjustments .................................146
Control Positioning .....................................146
Handlebar Position, Width & Shape...........146
Adjustments for Competition
111
Adjustments for Competition