2005 Ski-Doo REV Series Shop Manual, Page 196Get this manual
Section 04 FUEL SYSTEM Subsection 02 (CARBURETORS, THROTTLE AND CHOKE CABLES)
Float Bowl
Unscrew drain plug of float bowlRecover the remaining fuel in containerUnscrew the screws retaining the float bowl to the carburetor bodyRemove float bowlNOTE: Upon float bowl removal, make sure not to drop carburetor floats
CAUTION: Oil pump cable must be readjusted whenever throttle cable or idle speed adjustment are changed, otherwise serious engine damaged may occurs
Float Arm
CAUTION: Spark plugs will foul if float is adjusted too lowEngine may be damaged if float is adjusted too highCorrect fuel level in float chamber is vital toward maximum engine efficiencyTo check for correct float level proceed as follows: Make sure that float arm no9 is symmetrical not distorted Remove float bowl and gasket from carburetor With carburetor chamber upside-down on level surface, measure height between bowl seat and top edge of float armKeep ruler perfectly vertical and in line with main jet holeNeedle Valve Assembly
Remove float bowl as explained abovePull out pin retaining float arm to carburetor bodyRemove float armUnscrew needle valve