1970-1973 Ski-Doo Snowmobiles Technical Data Manual, Page 29Get this manual
Descri ption: stamped on two flyweightsTwo flyweights incorporating an aluminum rivet(Whiter in appearance than the rivets attaching the fly weights to the cup)Applicable to: TNT 294
Description: stamped on two flyweightsTwo flyweights incorporating steel rivet (same color as the rivets attaching flyweights to cup)Applicable to: TNT 440