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Thread: Need Yamaha 80 help fast

  1. 08-23-2005, 03:20 PM #1
    Lomax's Avatar
    Lomax
    Lomax is offline Power User Roostin Away
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    Need Yamaha 80 help fast

    I have a little 89 Moto-4 80cc atv here and I just got done rebuilding the topend but i cant find the timing mark anywhere on the cyclinder head. this thing is driving me nuts, can anyone give me at least a general idea of where it is supposed to be at (no wise cracks please ). I am trying to get this thing out of my garage this afternoon so i can make way for another machine. Thanks
    -Will
    1985 Honda ATC 350X
    2003 Yamaha Banshee
    2003 Polaris Sportsman 500

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  2. 08-24-2005, 09:12 AM #2
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    Jason Hall
    Jason Hall is offline Power User Roostin Away
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    I have an 86 moto-4. The top end timing mark is a triangle dimple on the head under the round cam gear cover (cover with 2 philips screws). If you pull the left side cover off you can see the crank mark. The later model 80's might have a sight window for the crank mark I'm not sure.
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