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  1. Vintage Ski Doo's
    Hey guys, for starters I'm sorry about the long post, just want to include as much info as I can. I have a 95 MX 470 I picked up, hasn't been running since a couple years & I haven't had it running right yet. When I pulled it home I got it running to find it was only running on 1 cylinder...
  2. Vintage Ski Doo's
    Growing up we didn't have much extra so I never got a sled for myself, always using a friends or borrowing for fishing. Finally happened to be in the right place & time with a trailer when came across an 89' MX 470 which looked like it was well cared for with no rust, a new track, new seat, and...
  3. MXZ / Legend / Summit / Grand Touring / Formula
    Hey guys. Im working on my moms 1994 Formula mx 470. The air filter is basically gone, and its falling apart. Pieces are starting to clog up the carbs. Has anyone ever used the Uni pod Air filters? If so what would i have to re-jet to?
  4. MXZ / Legend / Summit / Grand Touring / Formula
    Hello, First time posting, brand new to the forum. Got a question regarding piston size, and recommended replacements. Been helping a buddy teardown the topend on his (I think 97 MXZ). The rings on the one piston are toast, we need to replace the pistons. Problem is its got a 470 rotax in...
  5. Vintage Classifieds
    Any help finding 94 MXZX engine would be appreciated.
  6. Sledding - General Discussion
    Anyone have any CAD files for any stock Heads, Cylinders, Blocks, Cranks, Billet Race Heads, Head Inserts/Domes, for the older 80/90s engines? Mainly interested in the 277, 292, 299, 377, 380, 470, 503, 521, 583, 617, 670, engines. Rich
  7. Sledding - General Discussion
    Does anyone know any of the Head & Cylinder & Y Pipe, Bolt Patterns, for some of these older motors. Do you have a CAD, or PDF drawing of them you can send me? [email protected] Or maybe a web link to some. 277 299 377 447 503 521 583 617 670 Rich Gillen
  8. Sledding - General Discussion
    LOOKING FOR CYLINDER PORT MAPS OF THE OLDER SKIDOO 277, 380, 440, 503, 470, 580. 582. 583, 617, 670. HEIGHT AND WIDTH OF EXHAUST PORT IN mm, AND DEPTH (OUTSIDE OF PORT TO PISTON DISTANCE) in mm. Using this guys programs "Pipe Designer" and "Cone Layout". http://ypvsbox.free.fr/ also this Cone...
  9. MXZ / Legend / Summit / Grand Touring / Formula
    Setting floats on a 94 mxz 470 wondering if i compress the needle and seat or just let it rest on there ?
  10. Sledding - General Discussion
    Does anyone know the CCs of the stock skidoo heads? 380 470 583 617 670 670HO Does anyone know of a formula for figuring your compression. Say I have a stock Seadoo Rotax 657(68mm stroke x 78mm bore) with 38cc chambers, what is my compression? Now, if I put on a Billet head with 31cc Inserts...
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