Adjustments For Competition - Honda 2005 CRF450R Owner's 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 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...........................96
Front Suspension Air Pressure......................96
Front Suspension Damping ..........................96
Fork Springs..................................................97
Front Suspension Disassembly .....................97
Damper Oil Change ....................................100
Fork Assembly ............................................103
Rear Suspension Adjustments ..........................109
Rear Suspension Spring Pre-Load..............109
Rear Suspension Damping..........................110
Rear Suspension Race Sag..........................111
Suspension Adjustments for Track
Conditions ........................................................113
Suspension Adjustment Guidelines..................114
Carburetor Adjustments & Tuning Tips ...........117
Carburetor Components ..............................117
Carburetor Circuit Functions ......................119
Carburetor Removal....................................119
Carburetor Disassembly..............................121
Carburetor Assembly ..................................123
Standard Tuning Recommendations ...........124
Adjustments for Altitude & Temperature ...124
Special Tuning Conditions..........................125
Pre-Adjustment Checks ..............................125
Carburetor Minor Adjustments ...................126
Spark Plug Reading ....................................128
Chassis Adjustments.........................................129
Rear End .....................................................129
Fork Height/Angle ......................................129
Wheelbase ...................................................129
Gearing .............................................................130
Tire Selection for Track Conditions.................131
Personal Fit Adjustments .................................132
Control Positioning .....................................132
Handlebar Position, Width & Shape...........132

Adjustments for Competition

Adjustments for Competition
95