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Old 04-22-2013, 09:37 AM
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Question
CM6 thread pitch?

What is the thread pitch of the CM6 plug?

I cannot find the thread that contained this information, can someone please enlighten me. I believe its a 10mm bolt but I need the thread pitch.
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Old 04-22-2013, 09:47 AM
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1mm

Milton
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Old 04-22-2013, 09:50 AM
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Yes, M10x1.0.
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Old 04-22-2013, 10:12 AM
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in GP I trust
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M10x1
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Old 04-22-2013, 11:40 AM
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Thanks everyone.
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Old 04-22-2013, 12:37 PM
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Must be the Fetzer Valve!!
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I am interested in why you wanted to know that... What are ya up to?
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Old 04-22-2013, 12:48 PM
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Proper bolt size for a piston stop. I have the bolt, but a flying buddy asked what the thread pitch was and I was drawing a blank.

Used to verify/set ignition timing.
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Last edited by BJORNBAAL; 04-24-2013 at 03:38 PM.
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Old 04-22-2013, 07:36 PM
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Idea....make a adjustable piston stop...start by breaking the center out of a old CM6 sparkplug. Then thread the hole where the center was for a stop. Round the part that contacts the piston so as not to damage piston. Works nice!
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Old 04-24-2013, 03:28 PM
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Must be the Fetzer Valve!!
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Can I ask why you need a piston stop
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Old 04-24-2013, 03:37 PM
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Quote:
Originally Posted by BJORNBAAL View Post

Used to verify/set ignition timing.
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Old 04-24-2013, 08:10 PM
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And also to stop the crank from turning when removing the hub...
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Old 10-15-2019, 03:59 AM
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CM6 Plug size and pitch

10mm x 1mm pitch
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