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shift problems

  1. GL1800 Tech Board
    I own a 2002 GL1800 with 97K miles on it. Recently I am experiencing occasional shifting problems. Always (so far) on the upshift...3rd to 4th, or 4th to 5th etcetera. Oil is immaculate, always changed every 3K miles. I can sometimes ride all day without it happening...other days it happens...