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  1. #1

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    Fuji 780 in an SL 750?

    My 94 SL750 just chewed up a lower rod bearing and then damaged the piston and head. I am trying to decide if I want to try to repair the bad cylinder or get an engine from SBT. The manual says I can't change the rod and must buy a new crank with rods as an assembly. Is this true or can one rod be replaced (assuming the crank is OK)? If I decide on an engine from SBT I noticed the 780 and 750 engines are the same price. Has anybody tried to drop a 780 into an SL750? Are the engine accessories (reeds, carbs, started & electrics) compatible?


  2. #2

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    you would need a 780 cdi ,exhaust manifold and rejet the carbs too and i'm sure theres a few more things too

  3. #3
    g.willits's Avatar
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    I thought sbt only accepted a core for a core so 780 for 780 or 750 for 750, or maybe im talkin crazy?

  4. #4
    Carson's Avatar
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    Quote Originally Posted by g.willits View Post
    I thought sbt only accepted a core for a core so 780 for 780 or 750 for 750, or maybe im talkin crazy?
    Haha, I am pretty sure your right. UNLESS, you make adjustments, and then your good to go.

  5. #5

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    Thanks for the input. Sounds like its a bigger deal than I thought and maybe not possible with SBT. I really don't need a 780, just a thought if it was cheap and easy.

    Does anybody know if individual rods can be replaced?

  6. #6
    She likes the bike. But the ski gets her wet!!!! xlint89's Avatar
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    Yes, but not easily. They need to seperate the crank to install rods. (press fit) so it's costly either way.

  7. #7
    She likes the bike. But the ski gets her wet!!!! xlint89's Avatar
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    Quote Originally Posted by bschinstock View Post
    My 94 SL750 just chewed up a lower rod bearing and then damaged the piston and head. I am trying to decide if I want to try to repair the bad cylinder or get an engine from SBT. The manual says I can't change the rod and must buy a new crank with rods as an assembly. Is this true or can one rod be replaced (assuming the crank is OK)? If I decide on an engine from SBT I noticed the 780 and 750 engines are the same price. Has anybody tried to drop a 780 into an SL750? Are the engine accessories (reeds, carbs, started & electrics) compatible?
    Post #11 explains in detail what needs to be addressed with a 780 conversion.


    http://www.greenhulk.net/forums/show...80-785-s/page2

  8. #8

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    Thanks xlint89, this is great information! Now I just need to make a decision on engine repair, engine replacement or a newer/bigger PWC.

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