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Canadian Daves JustKDX
New guy, just picked up an 89 kdx200.
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[QUOTE="julien_d, post: 1316026, member: 98751"] I got the top end off tonight, and the right side covers are off again as well. The piston is definitely brand spanking new wiseco. Looks pristine still after my break-in and 30 minutes of riding. The cylinder wall just has a minor spot or two that looks like a previous mild seize or something from a previous piston. Small aluminum deposits. I'm going to have a go at honing it very lightly, and then I'll do another break-in when I put it back together. KIPS valves are very smooth and clean, no problems there that I can see. It looks to me like everything is in excellent condition, but was put back together poorly. Lack of gaskets on the entire right side, and top end gaskets that look as if they've been R&R'd several times. I'm really lucky that nobody actually ran it like that! Especially the wrong clutch basket and poor brazing job. Aside from what I found in the first post, and in spite of even, everything looks in great condition, and really clean. I'm thinking I'll go ahead with the stock pipe mod while I have it apart. I have no problem cutting and gutting the pipe. I'll have the local machine shop weld it back for me though. I didn't get the carb apart to check jetting tonight, and we're doing the top end on my buddies yz250 tomorrow so it will be later in the week before progress continues. I'd really like some advice on the the jetting. I'm at about 3000' where I live, and anywhere between 2000 and 4000 where we ride. Stock pipe (to be modded), and no airbox lid. I simply don't have one, lol. Riding style is tight technical trails, not much wide open running except the occasional speed blast up the road for kicks. More to come! J. [/QUOTE]
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Dirt Bike Discussions By Brand
Canadian Daves JustKDX
New guy, just picked up an 89 kdx200.
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