Yamaha FX-1 (701) engine (reed case) SWAP? - Page 2
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  1. #11
    PWCToday.com Is My Home Away From Home Bionic racing's Avatar
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    Re: Yamaha FX-1 (701) engine (reed case) SWAP?

    Real good throttle response , restarts were also good , just wanted to simplify and ran a buckshot 46 single , I bought tod rosses #4 slalom boat from him in 1995 , it was on that ski @ that time period , fast skis , the absolute worst handling ski I ever stepped in the tray of , but was a ton of fun to ride , kept it for 8 years then moved on to RN and SN super jets

  2. #12
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    Re: Yamaha FX-1 (701) engine (reed case) SWAP?

    Wow, very nice. I was also wondering about the MRD setups since they all look the same, so the kawi 650 case issue makes sense. What about the 50mm version? Same deal? Made for one engine and then adapted for the others?

    In the FX-1 was the linkage an issue? I am now thinking get a 760 with MRD 46mm or 50mm and pro-tec pipe (to start).

    Any pics of the set up on your FX-1??????? Interested in seeing as many as possible.






    Quote Originally Posted by Bionic racing View Post
    Attachment 554974Attachment 554975Attachment 554976
    There is the 46 mm MRD off my fx1 , all MRD set ups were desighned to bolt to kawi 650 cases , X2 race class stuff , then adaptor plates were fitted to other engine applications , that plate fits 61x cases , also have 62t case plate , same plate that is used to convert 62t cases to a single carb kawi 650 set up from duals when that was popular
    Last edited by FX1x2; 12-13-2019 at 07:17 AM.

  3. #13
    PWCToday.com Is My Home Away From Home Bionic racing's Avatar
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    Re: Yamaha FX-1 (701) engine (reed case) SWAP?

    Only old pics of ski , no engine pics , throttle cable hooks directly to manifold , no issues

  4. #14
    PWCToday Newbie
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    Re: Yamaha FX-1 (701) engine (reed case) SWAP?

    OK, for some reason I did not get email notification on the replies, so here's my late follow up:


    I have a stock FX-1 with a worn out 61X.


    I want to swap the entire 61X with:
    ---------------------------------------
    760 with porting
    MRD fi
    ProTec pipe
    ProTec head
    ProTec ignition


    Will the following 61X work on the 760 (?):
    -----------------------------------------------
    Head
    Flywheel
    Crank coupler


    Flywheel:
    ----------
    Might eventually saw with a Jetinetcis charging flywheel.


    Pump:
    -------
    I have two different skat track impellers. Won't be swapping the FX-1 pump anytime soon.




    BTW, I am looking for:
    ------------------------------
    FX-1 gas tank with pick up
    MRD 62t adaptor plate
    FX-1 hull, pole, and hood
    L-S parts for Kawi 440/550
    Di#c%kinson Design parts for 440/550
    T-Shirts from the good old 440/550 golden years
    Last edited by FX1x2; 04-08-2020 at 12:27 AM.

  5. #15
    PWCToday.com Is My Home Away From Home Rushford_Ripper's Avatar
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    Re: Yamaha FX-1 (701) engine (reed case) SWAP?

    I have a fx-1 tank if you are still in need


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