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Message: [QUOTE="Spokes574, post: 1157605, member: 22918"] My engine was running fine, then I added: -1 tooth to rear sprocket and a new ignition CDI Rev box. After about 1hr the engine started to make a rattle/ping noise when coming out of corners, and only when I come out of corners. Once at high speed no noise. So I put full race gas in, still rattle/ping. So I put the stock CDI box, still rattle/Ping. I checked the pipe bolts and they are tight I check the spark plug and its light brown. The bike runs great other than the rattle/ping noise when coming out of corners and I know that is not good. I am loss as to what else to check. Any ideas as to what could be the issue? Thanks, Spokes574 [/QUOTE]