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Do I need to rebuild

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    Do I need to rebuild

    I bought a 81 GS750L di an comp. test 1,3,4 read 125 p.s.i. #2 reads 75 p.s.i , I am just wondering. The bike was sitting for about an year with out running. It dose run just very lean (no mufflers or air cleaners).

    Could anyone help?

    #2
    My guess is that the rings in that cyclinder may be stuck. Running without the header will burn your exhaust valves.

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      #3
      A tight valve is the first thing I would look for, if I find low compression, there are 4 on your # 4 cyl.
      1983 GS1100E, 1983 CB1100F, 1991 GSX1100G, 1996 Kaw. ZL600 Eliminator, 1999 Bandit 1200S, 2005 Bandit 1200S, 2000 Kaw. ZRX 1100

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        #4
        When I bouhgt the bike the guy i got it from had the ext. cut off already.Just test run for about 1min. I bought new ext. for it.

        thanks for the reply!

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