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Valve lapping yes or no?

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    #31
    The Factory Suzuki Manual for my bike ( also known as the Old Testiment) states lapping is neither required nor recommended. YMMV
    1981 GS650G , all the bike you need
    1980 GS1000G Power corrupts, and absolute power corrupts absolutely

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      #32
      Originally posted by duaneage View Post
      The Factory Suzuki Manual for my bike ( also known as the Old Testiment) states lapping is neither required nor recommended. YMMV
      Well all I can say is that there must be some discrepancy between the Suzuki Factory Manuals. My manual tells me to lap the valves using 3 different grades of paste working from course to fine.

      Cheers

      Don

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        #33
        I lapped my valves. I did it till no gas leaked through them. Not alot.
        1983 GS 1100E w/ 1230 kit, .340 lift Web Cams, Ape heavy duty valve springs, 83 1100 head with 1.5mm oversized SS intake valves, 1150 crank, Vance and Hines 1150 SuperHub, Star Racing high volume oil pump gears, 36mm carebs Dynojet stage 3 jet kit, Posplayr's SSPB, Progressive rear shocks and fork springs, Dyna 2000, Dynatek green coils and Vance & Hines 4-1 exhaust.
        1985 GS1150ES stock with 85 Red E bodywork.

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          #34
          I always lightly lap valves in when putting a head together & have done for 20 odd years with no problems, i fail to see how making a good seal between valve & seat could be anything but good news

          I suppose its down to choice really & ive made mine :-D

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