Sound of Piston Slap?

Joined
Apr 16, 2007
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#1
I have been reading all these threads about piston slap and all I read is NOISE. What does this NOISE sound like. I have a little metalic ping noise that goes with revs. I also have smoke coming from the joint inbetween the block and the pipe that I tried to seal with some high heat gasket, does this leak hert my powe?.(Recomendations?)
 
Joined
Apr 26, 2006
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#2
You will hear that "slap" when your top end is loose. My friend's ktm lost about 60% of its power when the piston started to slap. Dont think slap like a slap on the back, its more like the metallic high pitched almost translucent "ping" you were talking about. Is your exhaust port smoking really bad, or just a bit? I wouldn't say it would put a damper on your power, although its definately not a good thing.
 
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#3
It smokes a lot on cold start a lot less after warm up. I just figured it was normal 2 stroke smoke, but the pipe is not sealed in any way to the exhaust port of the engine. I tried the liquid gasket but it just ratteled it self to pieces. I do hear the high pitch ping a bit but I have heard it alot in othe 2 stroke equiptment, like weed wackers. It isnt a regular continues sound, is that still bad?