2004 Ski-Doo Racing Handbook, Page 229Get this manual

2004 Ski-Doo Racing Handbook, Page 229

SECTION 072003 MX Zx 440 INFORMATION
ENGINE SPECS2003 440 REV
At the Midwest Race School, the combustion chamber volumes and squish measurement were presented incorrectlyThe values given at the school were for the low compression head insertsThe correct values for the high compression head inserts are as follows; Installed Volume 18.01.5cc Flat Plate Volume 17.6.9 cc Squish mm 1.16.3 mm Squish in.046.012 in

SNOW FLAP2003 440 REVROLLING CHASSIS
Some race circuits are requiring the snow flap to touch the ground when the rider is NOT on the sledA flap extension is requiredRubber material is not allowable for an extension, it must be made of rigid plastic and securely fastened by rivets or small bolts to prevent it from coming loose
SKI LOOPS2003 440 REVROLLING CHASSIS