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  1. #1

    Need Help! High pitch whine noise

    I recently picked up a 92 bombardier SP with a 98 717cc rotax motor swap. It starts up fine, runs good, running wise, I don't have issues. The only problem is as soon as I hit the start button whether the clip is pushed down or not, it lets out this constant high pitched sound. It doesn't stop until you hit the stop button on the handle bar. Engine running or not, it doesn't fail. Even going full speed on the lake you can hear it.

    I can't seem to figure it out. If you have any clue what it might be I could sure use some help!


  2. #2

    Join Date
    Aug 2012
    If it is anytime the engine is running/cranking it could be your jet pump. Either there is no oil in the pump and/or the bearings are bad. My 2002 xp had a noise similar to this.

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