2005 Ski-Doo Racing Handbook, Page 441Get this manual
SECTION 11COMPETITION PREPARATION
High Altitude OPEN MOD: 800 REV Chassis
TEMPERATURE 40-50 DEGREES RACING TYPE Maximum horsepowerCarburetor type PTO Main jet Needle Needle clip position Slide cut-away Pilot jet Needle jet Pilot screw adjustment Needle valve Fuel Drive ratio Chain Drive pulley Type of drive pulley Ramp identification Calibration screw position Spring green 280 lb-420 lb Clutch engagement Pin Weight Lever Driven pulley Spring Color Preload Cam Drive belt Part Number kg (lb)