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MX, SX & Off-Road Discussions
Dirt Bike Mods & Maintenance
Rattle with new piston ???
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[QUOTE="2000KDX200, post: 875884, member: 58730"] Hi, Hope someone can help me, as I'm unsure what I can do to remedy the problem I'm having. I own a 2000 KDX200 and recently had to replace the output shaft, due to the splines being badly worn. I had bought my bike 2nd-hand back in the spring, had ridden it nearly every weekend all summer, and decided to freshen the top end while I had it torn down. When I removed the jug, I found the cylinder and the piston to both be in great shape. Since the had never had any top-end rattle, I cleaned the piston, lightly honed the cylinder, then cleaned it, installed a new set of rings, and reassembled the bike. When I started it, the bike had slight increase in compression. It also had a noticeable rattle in the top end... especially during idle. :yikes: Next, I removed the jug again, replaced the stock piston with a Wiseco Pro Lite, and replaced the rings again (with those accompanying the Piston). When reassembled, the bike still rattled. :yikes: Any ideas? I'm wondering if the added compression might be causing another part (such as the small-end bearing), to fail? I'm also wondering how I might be able to tell if the previous owner had ever replaced the rod with a Hot Rod or such, and if so, would the Hot Rod require a different small-end bearing than the stock OEM? 2000KDX200 [/QUOTE]
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MX, SX & Off-Road Discussions
Dirt Bike Mods & Maintenance
Rattle with new piston ???
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