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Canadian Daves JustKDX
Q's on Pics of [Intake port],[Piston skirt],[Reed Valves]
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[QUOTE="know_fear, post: 1241544, member: 18539"] I'll take a stab at this to get the ball (and the bike ) rolling. The reeds seem OK but the intake port should not be black like that. Something nasty may have been going on there. Photos are a great tool but no one will be able to give you a thumbs up on piston wear from a photo. Take the pipe off. with the fingers of one hand in the exhaust port and the other hand in thru the intake port, push the piston back and forth. If you feel any play with this method it's probably too much! Let's see what others have to say but I would pull the cylinder off and take the piston and cylinder to a bike shop to have them assess the condition. Re-plating may be required. They can tell if the bottom end (con rod big end and main bearings) are good by inspection as well. It's a huge mistake to put a new piston in when the bottom end is going. If you get lucky it will just vibrate badly as a warning but if ignored you could destroy the engine cases. I'm not trying to freak you out. You're going about this the right way. Disassemble it while taking notes and photos so you can put it all back together. Determine which parts can be reused but don't cheap out by ignoring advice from mechanics that actually examine the parts. Good luck. [/QUOTE]
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Dirt Bike Discussions By Brand
Canadian Daves JustKDX
Q's on Pics of [Intake port],[Piston skirt],[Reed Valves]
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