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  1. #1

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    Jul 2010
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    750 engine swap to 780 or 1050

    Hi new here and just got a sl750 with a blown engine , I know the problem was the fuel pump but now since I have to change the engine I was wondering how hard it would be to put something bigger in it any recommendations or maybe someone who has the parts to perform the upgrade for sale would really appreciate it


  2. #2
    ryandi2's Avatar
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    welcome to the hulk.

    well you could A) replace the 750 motor completely with a 780 or B) replace just the top end with 780 jugs and pistons.. as long as your cranks ok..

    as to dropping bigger then that in your 750 hull you probably be better off buying a ski with a bigger motor..you will have to worry about mounts and electronics and bigger carbs

  3. #3

    Join Date
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    thanks fot the info Ill porbably end up putting and engine the problem was caused bu fuel starvation i know i have to change the pump but if i put a 780 what else would need to be changed

  4. #4
    ryandi2's Avatar
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    Quote Originally Posted by superfun123 View Post
    thanks fot the info Ill porbably end up putting and engine the problem was caused bu fuel starvation i know i have to change the pump but if i put a 780 what else would need to be changed

    im not a fugi guy, but i think all the electronics would work.. you could switch to the 780 for better curves but what i would do is upgrade to the 3 outlet pump and swap the jugs and pistons for the 780 jugs and pistons.. you will need

    3 cyl

    3 pistons and rings

    3 780 heads..

    this should be your cheapest opption but you might be able to find a motor for cheapto slap in there.. but when you rebuild your self you know its new on the top and good to go

    dont forget a gasket kit

  5. #5
    She likes the bike. But the ski gets her wet!!!! xlint89's Avatar
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    As long as the crank is still good, all you'll need is this kit I have for sale.



    The triple outlet fuel pump, wrist pin circlips, and jets for your carbs.


    Your electronics will work with the CDI I'm including in this kit.

    You'll just need to have the cyls bored for the new pistons.

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