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Author Topic: Adjust valves - confused.  (Read 5026 times)

azcycle

  • Guest
Re: Adjust valves - confused.
« Reply #30 on: May 15, 2010, 09:07:50 PM »
Update.... valves adjusted (they were all very tight) and new plugs installed. Wow, what a difference!  

However, now she seems to idle a bit high. I don't have a tachometer (do have a Crafstman "engine analyzer" that has one.) So I'll hook it up and see what rpm she's revving at.
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Offline Barry

  • Mt. Olympus Resident
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  • Posts: 5145
Re: Adjust valves - confused.
« Reply #31 on: May 16, 2010, 03:19:33 AM »
Quote
Did the camshaft change from the 1980 and earlier to the 1981 and later bikes?  
No I don't believe it did which makes it all the more curious why BMW kept changing recommended clearances.

Just to summarize what I've seen in print:-

78 -80 owners manual   inlet .004"    Ex .006"

81       owners manual   inlet  .002"    Ex .008"

Mar 82 Service bulletin   inlet .004"    Ex .008"




« Last Edit: May 16, 2010, 03:20:09 AM by bhodgson »
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Barry Cheshire, England 79 R45
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