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  1. #1

    slx 780 short about 200rpms

    hey guys had my slx out yesterday and its reving about 6280 at max, cleaned and rebuilt carbs, piston wash looks perfect,plugs are nice in color, fuel system is in A+ condition, including pump. is there something im missing or am i just only gonna get this outta it? i was hopeing to get around the 6500 (from what iv'e read on here thats about where it should be) Any help would be appreciated, thanks guys


  2. #2
    Bing-A-Ding-Ding-Ding, Brrrrrap! Brrrrrrrrrap!!! Polaris_Nut#1's Avatar
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    Quote Originally Posted by keiken View Post
    piston wash looks perfect,plugs are nice in color, fuel system is in A+ condition, including pump.
    Sounds good, do you have good pump bearings and a nice impeller that isn't all chipped up?

  3. #3
    She likes the bike. But the ski gets her wet!!!! xlint89's Avatar
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    Quote Originally Posted by Polaris_Nut#1 View Post
    Sounds good, do you have good pump bearings and a nice impeller that isn't all chipped up?
    Right. How's the pump condition?

    What impeller is on it?

    Maybe the carbs are too rich. Is there alot of piston wash?

    Make sure the throttle plates are synced, and open all the way.

  4. #4
    i havent cheked the impeller or bearings in a while, impeller is stock by the way, the piston wash is good, a lil bit bigger than finger nailed sized wash at the ports, pump is basically new and looks good, this is the first year ive had the mfd working so i cant recall if the revs were ever higher, just thought they shoul be..

  5. #5
    Plrs X45's Avatar
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    When I got past 6300 the boat blew up! 6280 is where my boat ran all the time. That isn't very accurate either.

  6. #6
    She likes the bike. But the ski gets her wet!!!! xlint89's Avatar
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    Sounds pretty good.

    Do you have a GPS that can tell max speed? That may be a good gauge.

    I think an SLX 780 should be between 52-56 MPH.

  7. #7
    thanks guys, got the ski out yesterday and did a lil more tuning, got a max of 6410 at 57 on gps, right out of the hole it sometimes will tap the rev limiter once or twice, running great.

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