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Thread: Ski Doo Gearing Change ?

  1. #1
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    Default Ski Doo Gearing Change ?

    I have a 96 Touring 500 SLE, which I love. I would like a slightly lower gear ration since lately I have been towing some.

    It has, of course, the old style reverse with a pull-out handle next to your right knee.

    Does anyone have some experience with these gearboxes? I need to get in it and change the chain anyway, is it feasible to drop a tooth on the input shaft? Or add one on the output side?

    Anyone done this? thanks....

  2. #2
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    I would not change gears. I had the same problem and change the weights.

  3. #3
    Member tjm's Avatar
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    changing gears is very common and the results are good...I've never tinkered with a machine like yours but it cant be much different with your reverse setup....I dropped a tooth on the top gear and went up a tooth on the bottom one....much snappier and the belt runs much much cooler....
    ------------------------------------------------
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  4. #4
    Moderator hunt_ak's Avatar
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    I upped the ratio on my Fusion 600 and if you make sure your ratio works with your stock chain, this can be done VERY inexpensively. Plus, if I can do it, anyone can...

    Like tjm said, this made the 'ol 600 much more snappy on the low end...

  5. #5
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    Hunt AK you mean don't change the ration so much that the tensioner can't take up the slack?

  6. #6
    Member tjm's Avatar
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    ratio is not quite what you need to worry about....basically if you decrease the size of a sprocket you'll need to tighten the tensioner a bit, and you'll have a little sharper angle....if you decrease a sprocket too much in size you'll need a shorter chain....you can probably get away with at least a tooth or two without needed a new chain....likewise in reverse if you increase the bottom sprocket size...
    ------------------------------------------------
    pull my finger....

  7. #7
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    OK I think I get it. In your case when you dropped a tooth on the drive end and added one on the driven end, you must have re-used the same chain?

    I want a new chain anyway after the abuse I put this one through hauling moose out last winter, but it would make the whole mod process go smoother to be able to use a stock length one.

    Hopefully various sizes of drive and driven sprockets are available- Is one tooth smaller on the drive and one larger on the driven a pretty place to start?

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