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Dirt Bike Discussions By Brand
Dirt Bike Brands - Other
Normal break in or damage
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[QUOTE="2strokes4life, post: 1350446, member: 104797"] I agree that the chance of oil cancelling out the air (lean) damage is slim to none. I didn't ride it much at all during the break in cycle. There shouldn't be any damage even if it was lean. The only way it would be lean is the bad seal on the ignition side (dry side). I haven't taken that side apart yet, because I still haven't gotten the parts yet. The jetting is exactly what FMF calls for. The porting must have been done by the previous owner. I didn't measure the clearance after I got the cylinder back from the plater. I sent the piston out with the cylinder. I know what assuming does. I guess I should have checked it. The ports were all beveled and yes the end gap on the rings were good out of the box. I checked them in the cylinder per my manual. Thanks for all of the responses. I appreciate the help. I just rebuilt the top on my 2002 CR 250 over the weekend. It's all stock. It went smooth as silk. I'm ready to start riding and quit working on them so much. [/QUOTE]
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Dirt Bike Discussions By Brand
Dirt Bike Brands - Other
Normal break in or damage
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