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Valve shim calculator

  • Thread starter Thread starter Roemy24
  • Start date Start date
R

Roemy24

Guest
Hello all. I know that at one point there was a link to a shim calculator/ Excel spreadsheet. Does anyone have the link? I did it manually :-k but just want to make sure before I go into the dealer. In essence, smaller the shim, larger the gap. .03 - .08 acceptable even though going slightly over such as .088 won't hurt it, correct? Many of mine are at approx. .038 (my smallest feeler.) Thanks!
 
There is no link. Send me an e-mail with a request, I will reply with the spreadsheet as an attachment.

.
 
Send Steve an e-mail at woodin.s@gmail.com asking for his EXCELLENT work sheet.

Also, you're correct, going with a slightly larger gap is much perferable than a tighter one. Smaller gaps will not allow the valves to close.

Suggest getting a set of feeler gages that can measure the smaller gaps however - you really want to know exact numbers when changing out shims.

Perhaps a stupid question, but you measured all your gaps when the engine was STONE cold?

good luck,
 
I did do this when it was cold. Was I suppose to check when it was warm?
 
Valves are always checked cold. There's no way to determine how much thermal expansion has taken place if the engine is warm, so it's best to do after the bike has been sitting overnight.
 
Ha :D it's been sitting for days! Actually in the last three months it has only ran three times. Only once successfully down the road. :-k
 
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