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  1. #1

    Engine swap from 700 to 1100

    I have an 2001 700 xl waverunner that has a blown engine. I was able to get an 1100 to replace the blown 700. I also got a smaller shaft that came with the 1100. I was also able to get the water box that came from an 1100. I noticed that my 700 hull has a different connector for the exhaust hose that connects to the water box than the 1100 hull. Has anyone done the swap before or can anyone give me advice on the water box. Do I use the original water box that has smaller intake and exhaust holes and just have the intake piece weld to fit an 1100 tubing and keep the exhaust the same so it can fit the stock 700 hull. Thanks


  2. #2
    Myself's Avatar
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    I wouldn't think it would breathe too well. Probably should also add the exhaust off the 1100 setup. Stock stuff should be relatively cheap.

  3. #3
    I agree but the 700 hull has only hole as the outlet and the 1100 I believe has two holes, the area where the water flows out near the pump assy. I could replace the piece, which I have, but I will have to make another hole so the it will fit properly. Thanks for your input

  4. #4
    Myself's Avatar
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    Pull the pump (you'll want the 1100 impeller anyway), make a template, and cut out the hole.

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