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Project 91 GPZ250 Project Bike

Discussion in 'Your 250cc Projects' started by Milt94, Sep 5, 2019.

  1. Milt94

    Milt94 Active Member Premium Member Contributing Member

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    Location:
    Sydney
    My Bike:
    Had 1997 Suzuki Across, 2014 Ninja 300, 2002 Yamaha XT250, 2007 Suzuki GS500, 2001 Honda CBR600F4i, 1991 Kawasaki GPX250
    So a while back I got given a 1991 GPZ250 as a project bike by a friend. It hasn't been registered in well over a decade and don't even know the last time it ran.

    Another friend and I are looking to rebuild it to get more confident in our mechanical acumen.

    First question after dropping the engine out is that when cranking by hand to try and find the timing marks for TDC, everything rotates pretty smoothly although after 3 cranks with the socket, the cams and chain sort of rotate freely for maybe 15 degrees after the end of the rotation from the wrench.

    Wondering what the cause of that is, if it's bad and how much investigating is needed to decide if a rebuild kit is needed?

    Cheers
     
  2. Murdo

    Murdo The Good Doctor Staff Member Contributing Member Ride and Events Crew

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    Location:
    Tamworth, NSW
    My Bike:
    1937 Royal Enfield 250, CF Moto 250 V5, Honda's XL250, CBR250, FT500 plus a few others.
    Cam chain tensioner has shat itself and chain is loose.
     

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