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  1. #1

    650 to 720 swap project

    What I have is a 93 XP with a 650 and a 96 HX with a 720 and I want to swap the motors as I like the xp hull better. Has anyone done a swap such as the and is there anything that I need to know? Can I leave the electrical boxes alone and only swap the engines and carbs. I would appreciate any ifo that anybody can offer.

  2. #2
    Does no-one have any suggestions?

  3. #3
    flyin' the friendly skies airbornexp's Avatar
    Join Date
    Aug 2007
    Mahomet, Il. USA
    definitly going to need the gray box. I think that you can leave the rear black box. everything else needs to go with the swap

  4. #4
    Rotary Valve Plate on the '96 HX has a 159 degree opening and the '93 XP has a 147 degree opening.

    .... and the Ignition Electrix ("non-DESS mpem") are different part numbers so electrical timing and advance is most likely different as well


  5. #5
    Deanrw3's Avatar
    Join Date
    Oct 2008
    west MI
    swap as many parts over as possible. All electrical, all water, fuel, oil, ect. This will make the project easiest IMO.

    GL ask questions here when you have them,


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