Question about 2004 kawasaki KX 125

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Bought a 2004 kx65 for my son last night. Bike ran and sounded great. Today he starts it up and the motor is knocking. What could it be?

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  • bbrown72 Mar 10, 2009

    It has the old gas mix from last summer in it.

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Hi mate it could be to do with the correct mixture off oil/petrol you should buy a mixing bottle on ebay with a ratio of 32/1 and make sure the choke is off when you ride it good luck

Posted on Apr 03, 2009

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Change all fluid .,, gas mix must be right and change all oils and make shure that its absolutly safe for ur son to ride,. go over it like a car before you go for road trip. mae shur that the chain is not oos and that tha sprockets are not wore down..., also check the motor mounts to make shur they are not broken. spray the chair down with chain wax and lube up the back swinging arm. always were a helmet. happy ridding...

Posted on Mar 10, 2009

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Did you add the right amount of 2cycle oil to fuel?

Posted on Mar 09, 2009

  • kad19692000
    kad19692000 Mar 10, 2009

    Drain fuel from tank, drain carb bowl, put in fresh gas with 2 cycle oil mixed in tank, remove spark plug , put about 1/2 oz of marvel mystery oil in cylinder, crank engine over, clean and replace spark plug and try starting.

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