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79' 850gn, cylinders over spec. Limits

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    79' 850gn, cylinders over spec. Limits

    Just found out my pistons are out of spec., other than replacing with another 850 set of jugs is there other options.

    #2
    What's out of spec? Piston skirt, cylinder walls, ring lands, ring gap? What are you measuring and how?
    '82 GS450T

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      #3
      I took to my mechanic, he measured with digital gauges, the cylinder walls, basically the hole is too big for the pistons, way oversized, iwas getting oil blowpast on my # 1 cylinder especially, .

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        #4
        Originally posted by newfyby View Post
        I took to my mechanic, he measured with digital gauges, the cylinder walls, basically the hole is too big for the pistons, way oversized, iwas getting oil blowpast on my # 1 cylinder especially, .
        Im good now, just picked up an '82, full engine, just gonna swapem out.Is there any problems with doing this or is it pretty. Straight. Forward.!!!!!

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          #5
          Originally posted by newfyby View Post
          Im good now, just picked up an '82, full engine, just gonna swapem out.Is there any problems with doing this or is it pretty. Straight. Forward.!!!!!
          The heads, carbs, and ignition systems are different. Probably lots more, but those are the big things off the top of my head.

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            #6
            So I go to look at the '82 motor and low and behold it's actually a '79 engine in an '82 frame, kickstarter and all.

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