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MX, SX & Off-Road Discussions
Dirt Bike Mods & Maintenance
KX 250, After a Fresh Rebuild... it now Knocks?
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[QUOTE="rmc_olderthandirt, post: 1360841, member: 68872"] Sounds like the rebuild was forced due to a seize. Did it lock up or did it just lose compression and stop running? If it locked up while you were running there is a good chance that the rod bearing was damaged. Like TWRT said, did you check the rod play before you put it back together? Another thought: Any chance you left out the wrist pin bearing? When you took it apart, was the piston in one piece? Were all the pieces accounted for? If a chunk of piston is still down in the case the rod could be hitting it as it goes by. If it is knocking you need to tear it back apart. Don't run it anymore, that will just damage otherwise good parts. Rod [/QUOTE]
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MX, SX & Off-Road Discussions
Dirt Bike Mods & Maintenance
KX 250, After a Fresh Rebuild... it now Knocks?
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