Cam chain test buying bike

Discussion in 'Motorbike Technical Discussion' started by Tom, Apr 9, 2005.

  1. Tom

    Tom Guest


    Tomorrow I am going to look at a Kawasaki GT 750 with the idea I might
    buy it.

    How can I tell, if possible, whether the Cam chain is okay?, is it
    just by listening for rattles? Is there any thing else I should look
    for on this model, it's over 15 years old but is reported to have only
    done 17000 miles.

    Many thanks

    Tom, Apr 9, 2005
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  2. The camchain on this bike lasts for ever.

    The tensioner is the weak unit - it works on the principle of two
    sliding wedges acting on each other. They develop burrs, don't slide,
    and stick instead.

    If the bike rattles on start-up and the rattle goes away as it warms up,
    it's sticking.

    A temporary fix can be done by stripping down the tensioner and cleaning
    up the wedges with wet & dry paper, but new wedges is a better solution.
    It's a very quick and easy fix and costs about £20.

    Other things to check - whether the inlet rubbers between carbs and head
    are perished. This weakens the mixture and can hole pistons, and the
    rubbers cost £15-20 *each* and removing the carbs is a PITA.

    Borrow a screwdriver and remove the tank badges. Water collects behind
    them and rusts through the tank. Wise owners (like me!) remove the
    badges and pack grease behind them.

    Rear guards - rust awar completely. Front ones suffer too.

    Starter motor clutches - any untoward screeches or noises from the
    starter motor means they're on the way out. That requires removal of the
    sump and the entire clutch to fix.

    Check the drain plug on the bevel box - hamfisted owners strip the

    Air shocks leak when old. Ditto the forks, but that doesn't matter as
    they have springs inside holding them up. The shocks are springless and
    if they leak, the bike just squats down on its haunches like a wounded

    Fundamentally, though, a very very solid bike.
    The Older Gentleman, Apr 10, 2005
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