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Everything Dirt Bike
Make / Model Specific
Kawasaki
KX100 top end rebuild
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<blockquote data-quote="ossagp" data-source="post: 212163" data-attributes="member: 1650"><p>I haven't gotten what you call a bad piston in a very long time, and never have with a two stroke. I have had plenty of bad results though. If you are going to run a cylinder that is a little bit on the loose side, go for the forged variety. Chances are a little bit less that you will rattle the skirts off of them. Your cylinder likely will seat your new rings easier if it is honed or scotch brite scoured. When I hone a two stroke cylinder I usually do it in water or with a flow of water running through the cylinder. To keep from doing the "funky chicken" that means I use a rechargeable drill. But if I am going to watch someone else do it, I hand them a Milwaukee that I bought in 1976. I use an aluminum oxide ball hone about 200 grit and small enough that I can insert it into the cylinder and then shake it and have it fall out. I take out all the powervalve stuff before I hone it fyi. it gets a good power washing and if you can get away with it, just run it through your parents diswasher (you had been saying you wanted to move out). Anyway, clean it really good, rub the bore down a few times with atf and paper towels. Ready to reinstall. FYI I don't run the hone down over the ports. Don't use the hone to try to clean out aluminum. (Use muriatic acid if aluminum is stuck to the cylinder walls.)</p></blockquote><p></p>
[QUOTE="ossagp, post: 212163, member: 1650"] I haven't gotten what you call a bad piston in a very long time, and never have with a two stroke. I have had plenty of bad results though. If you are going to run a cylinder that is a little bit on the loose side, go for the forged variety. Chances are a little bit less that you will rattle the skirts off of them. Your cylinder likely will seat your new rings easier if it is honed or scotch brite scoured. When I hone a two stroke cylinder I usually do it in water or with a flow of water running through the cylinder. To keep from doing the "funky chicken" that means I use a rechargeable drill. But if I am going to watch someone else do it, I hand them a Milwaukee that I bought in 1976. I use an aluminum oxide ball hone about 200 grit and small enough that I can insert it into the cylinder and then shake it and have it fall out. I take out all the powervalve stuff before I hone it fyi. it gets a good power washing and if you can get away with it, just run it through your parents diswasher (you had been saying you wanted to move out). Anyway, clean it really good, rub the bore down a few times with atf and paper towels. Ready to reinstall. FYI I don't run the hone down over the ports. Don't use the hone to try to clean out aluminum. (Use muriatic acid if aluminum is stuck to the cylinder walls.) [/QUOTE]
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Everything Dirt Bike
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Kawasaki
KX100 top end rebuild
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