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  1. #1

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    93vxr 650 superjet in 89 wr500 engine swap?

    I just bought a 93vxr 650 engine to put in my 89 wr500 for a real power gain, I was wondering if any one knows if it will even fit and what kind of issues i may run into during the swap. Also whats the largest engine Yamaha makes that will fit in the 89 wr500? It may seem like a waste of time to some but i really like the machine and the way it rides , just want it faster!


  2. #2
    Old Ski Insanity w/rpm500's Avatar
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    Quote Originally Posted by west4570 View Post
    I just bought a 93vxr 650 engine to put in my 89 wr500 for a real power gain, I was wondering if any one knows if it will even fit and what kind of issues i may run into during the swap. Also whats the largest engine Yamaha makes that will fit in the 89 wr500? It may seem like a waste of time to some but i really like the machine and the way it rides , just want it faster!
    yes it will fit the lx650 was the same first gen. waverunner hull with the bigger motor & impeller pitch... there have been 701 put into the 500 hull...
    I'd imagine a 760 would work, thou definatly a bigger pump would be needed.. bigger would be a waste...how about a 1688 water cooled vw!!!?

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    do you know if my old water box will work with the 650?

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    that's a good idea i like the vw engine!!!! lol

  5. #5
    Old Ski Insanity w/rpm500's Avatar
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    with the proper hoses it should work fine ( lx I had didnt have a motor just a hull water box was the same)

  6. #6

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    thanks for the info!

  7. #7

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    just got the engine (650 superjet)and going to put it in when i get a day off, i was wanting to know what impeller upgrade i could use to get more speed out of the 89 wr, as in pitch that would work with the now 50 hp i have ? any and all info would be helpful about what pitch i can now upgrade to without hurting my get up and go too bad?

  8. #8
    Old Ski Insanity w/rpm500's Avatar
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    look on the solas website for their recommended pitch on the lx650 .. I also think group k did a hop up a few years ago in one of the jet ski mag's on the 650 to pull a tube..

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