This blog is all about snowmobiles from the 1960's thru the 1980's. The daily posts will feature stories, ads or press releases for a classic snowmobile during that period from various snowmobile magazines and other publications during that period in snowmobile history. Save this blog and view it on a regular basis. You never know, you may see your favorite classic sled featured here !
Friday, June 13, 2014
1989 SKI-DOO RAVE ENGINE
Ski-Doo buyers were happy to learn of the New Formula MACH I, a muscle bound 580cc twin designed to give 650s a run for their money. The MACH I is unique that it featured a Rotax Automatic Variable Exhaust (RAVE) system that provided optimum performance throughout the sleds entire powerband. The new sled utilized the same chassis and front end components as the other Formula machines, however, a new gas-filled, monoshock rear suspension soaked up the bumps
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