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    Clutch slippage

    Now that I have my 83 GS750ES making some decent power, and I'm actually getting to ride it, i have found that (on occasion) if I get on the power hard, the clutch will let go a bit. The oil was changed recently to Bel-ray Synthetic 0W-40, and the bike has 63,000 kms (36,000 miles) on it. Should I be looking at a new clutch yet, or is the oil too thin, or ???
    Thanks.

    #2
    Originally posted by Unclesol
    Now that I have my 83 GS750ES making some decent power, and I'm actually getting to ride it, i have found that (on occasion) if I get on the power hard, the clutch will let go a bit. The oil was changed recently to Bel-ray Synthetic 0W-40, and the bike has 63,000 kms (36,000 miles) on it. Should I be looking at a new clutch yet, or is the oil too thin, or ???
    Thanks.
    I would move up to 10-40 oil and see how it makes out. The thinner oil could be the problem.

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      #3
      Make sure the oil you are using doesn't have friction modifiers in it.
      Currently bikeless
      '81 GS 1100EX - "Peace, by superior fire power."
      '06 FZ1000 - "What we are dealing with here, is a COMPLETE lack of respect for the law."

      I ride, therefore I am.... constantly buying new tires.

      "Tell me what kind of an accident you are going to have, and I will tell you which helmet to wear." - Harry Hurt

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        #4
        Originally posted by JHawkins
        I would move up to 10-40 oil and see how it makes out. The thinner oil could be the problem.
        Thanks for the tip, and enjoy the trail! A beautiful ride, and a very distracting one...Wish I could join you!

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          #5
          Originally posted by Jethro
          Make sure the oil you are using doesn't have friction modifiers in it.
          Thanks Jethro!

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            #6
            Pull the steels and hit them with a bead blaster. Then re-install and shim a couple of the springs to increase the spring pressure. I had a honda I used to dragrace alot. Did this at least once a year. Tons of drag launches all on the original clutch this way.

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              #7
              I doubt the oil weight is an issue here. I race a GSX-R 750 (ex-factory race bike) that also used 0 weight oil (as done by the factory race mechanics... 0-20 or 0-30, it's been a while) and never had any clutch slipping problems.

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