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Help FZR250 Flywheel Puller

Discussion in 'Yamaha 250cc In-Line 4's' started by neoncrypnid, Feb 11, 2021.

  1. neoncrypnid

    neoncrypnid Active Member Premium Member

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    Anyone know where to get a puller in Australia or does anyone have a thread sizes so I can make one? I couldn't find one myself and I can't believe I'm the only one to need to remove it. I'm pretty sure my motor is a 2kr, however it may be a 3ln with the internal oil filter if that matters at all
     
  2. neoncrypnid

    neoncrypnid Active Member Premium Member

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    An update for if anyone ever has this problem and finds this thread.

    The thread in the flywheel is M16x1.0. Thus thread was used, to my knowledge, twice in automotive history. This is one of those times. Later models are M16x1.5 which is infinitely easier to find.

    Theres 3 options-
    1. Buy a die and make your own tool. I got a die for $15 on ebay. This option has some problems. Unless you have accsess to high strength steels, the threads will probably strip. I know this from way too much personal experience.

    2. If you have a lathe, machine one up. I would do this if I had a lathe. If anyone wants to buy me a lathe I will make free pullers for everybody

    3. Buy Yamaha's tool. $20 and 6 weeks waiting to arrive from Japan is a pain though. Part number is 90890-01414.

    Use an oil filter tool with the rubber strap to hold the flywheel as you tighten the bolt. If your bike is high mileage or has any moisture around the flywheel it will put up an insane fight. Think very carefully before attempting and make sure you curse the engineers as you try this, it helps.

    Sent from my SM-G991B using Tapatalk
     
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  3. ruckusman

    ruckusman White Mans Magic Master Premium Member Dirty Wheel Club

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    Last edited: Nov 28, 2021
  4. ruckusman

    ruckusman White Mans Magic Master Premium Member Dirty Wheel Club

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    @Mike Green Do you have any tips for removing the 2KR stator - he's got one which is incredibly stubborn and the Yamaha tool is 6 weeks ETA from Japan
     

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