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Hi, I'm going through my sled, and am rebuilding the top end. After honing, the cylinders are round, check that, and with the wisco kit that I have, the ring gap now is.010. This is within factory specs of .008-.022 but man that seems pretty tight to me what would be a good gap to shoot for? I was thinking about.013? Is filing snomobile rings to fit acceptable? I've done it for all automotive engines I have done, but this is a new ballgame to me.
 

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If the rings sent with the kit are within spec as you state I would use them as is. Don't know of anyone who has filed them down to allow for more gap. Not an expert on the issue but as long as they are within spec you should be OK.
Just my .02
 

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You are dealing with a two stroke engine now.Take into consideration the shorter life and Higher rev's of a 2stroke. IMO you seem to be doing it right (with actually using a mic. and checking tollerences)But you need to stay close to Wiseco's spec.
 

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.08 is tight, i usually go for .010-.012 to be safe yet keep performance up.
 
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