2004 Ski-Doo Racing Handbook, Page 74Get this manual
SECTION 04ENGINE PREPARATION
There is no pilot air-screw used, as on VM carburetorInstead there is low speed fuel screw on the engine side of the throttle slideThis screw controls fuel, so the more turns out, the richer the mixture becomesDo not forget this
The Jet Needle is specifically made for TM style carburetor and are calibrated for each specific engine sizeThe clip is not adjustable as only one groove is provided! High altitude calibrations will normally require different Jet Needle
A33C0VA
Low speed fuel screw
A33C0YA