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  1. Glen Jordan

    77 XS650 Ignition System Reccomendations

    I installed Boyer on my '70. Relatively easy install. Works fine. A whole lot better than points and mechanical advance! I think you'll find these units for sale on eBay. Or order directly from manufacturer in UK. http://www.boyerbransden.com/yamaha.html
  2. Glen Jordan

    Thunder Bay to BC (Canada) and back 75XS

    By the time u get to BC you'll have excised all the gremlins. Friend and I made a similar trip in '75. From NB to Vancouver and back on my '70 and his '73. Covered 8100 miles in a month, and nary a mechanical problem. Our best day was over 500 miles. Am bone weary after 50 these days!
  3. Glen Jordan

    Valve Clatter

    You've got that right! Those engines are not exactly a light lift, out or in.
  4. Glen Jordan

    Valve Clatter

    Re-adjusted the exhaust valves to 15 mm as suggested. I couldn't detect less clatter in the left valve, but got my ears down close and tried to compare valve noise left versus right. Nice and quiet on the right but left still making a godawful noise. I eventually figured out was was causing the...
  5. Glen Jordan

    Valve Clatter

    I did not check valve guides! But, valves are new.
  6. Glen Jordan

    Valve Clatter

    Yes, running the large clearances - 15 and 30. I'll reduce those by half and see what develops. But, I've been using the larger clearances for years, without obvious clatter.
  7. Glen Jordan

    Valve Clatter

    I'm getting obvious valve clatter on the left exhaust. Others are making the usual racket. Overall the bike runs strong. I replaced the top end on this '70 engine when I developed a serious left valve guide oil leak. The '70 replacement rocker assembly has essentially new valve rockers...
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