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Ring end gap
Posted: 06:44 pm Apr 05 2015
by Corey
Hey folks,
Could somebody tell me what the piston ring end gap min. and max measurements are? I have a '96 KDX200H and my Cyclepedia manual doesn't state it. Nice manual...sheesh
. Did a search and couldn't find a post for a '96. Wiseco piston/rings, stock bore size (66mm). Thank you.
Re: Ring end gap
Posted: 07:13 pm Apr 05 2015
by s10gto
From Factory manual. Top and second ring 0.15 - 0.35mm Service limit 0.65mm
Re: Ring end gap
Posted: 07:34 pm Apr 05 2015
by Corey
Thank you very much. I'll write that in my owner's manual that is in paper form. Got the online service manual from Cyclepedia. Can't believe they don't have that in it.
Ring end gap
Posted: 07:44 pm Apr 05 2015
by s10gto
Your welcome! Crazy it's not in the manuel considering how important it is.
Re: Ring end gap
Posted: 07:46 pm Apr 05 2015
by Corey
Amen to that.
Ring end gap
Posted: 07:55 pm Apr 05 2015
by Tedh98
Corey wrote: Wiseco piston/rings, stock bore size (66mm).
If you are using a Wiseco you need to follow their specs. The manual has cast piston specs.
Re: Ring end gap
Posted: 08:23 pm Apr 05 2015
by Corey
Thanks for that reply Tedh98. Wiseco says that there should be a minimum gap of .004" per 1" of bore size. So if I converted 66mm to inches it works out to be 2.598". Now multplying 2.598 x .004 it works out to be .0103" minimum of gap. I checked it with the feeler gauge and I'm getting a .011" gap. So I should be good.
Re: Ring end gap
Posted: 08:29 pm Apr 05 2015
by s10gto
Yup you're good. A little loose is better then tight.
Re: Ring end gap
Posted: 08:37 pm Apr 05 2015
by Corey
Thanks to all who have responded. Nice to know that we all have each others backs. Great site. Can't say enough.