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  1. MXZ / Legend / Summit / Grand Touring / Formula
    So, I just picked up a '96 Grand Touring 580 with low compression for an insignificant amount of money - mostly because of the positive responses from members on various forums. Previous owners have indicated that they felt this sled was solid with a reliable engine. We did a top end on our '84...
  2. Vintage Classifieds
    I have a 93 formula plus EFI that is need of a fuel pump. I understand that this is a next to impossible piece to find due to the low production numbers of the machine, but I have to try. I'm trying to avoid a carb swap if I can, so if anyone has any idea where I can get a new or used fuel pump...
  3. MXZ / Legend / Summit / Grand Touring / Formula
    Hey guys, I have a couple of questions. I have a 1992 Ski Doo Formula Plus 580. It does not have reverse. I recently replaced my track and suspension to the SC-10 model. While I had the chain case apart, I noticed I need to replace the seals in the chain case. I need the part number for the...
  4. 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...
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