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Message: [QUOTE="rmc_olderthandirt, post: 1296405, member: 68872"] I am not sure I understood the original description and I sure don't understand/agree with some of the recommendations. The chain MUST have slack in it. If you tightened the chain so that it didn't make any slap or rattle noises then it would make one loud SNAP sound and that will be the end of that. 96CRKid: Can you provide a bit more description as to when this noise occurs? If it happens when you are revving the engine in neutral then it has to be the chain vibrating against the swing arm. Don't worry about it. If it happens when you are riding at WOT (and you can hear it above the engine noise) then I would expect it to be the chain guide (plastic part that guides the chain onto the rear sprocket), or the roller(s) (just before/after the front sprocket) or the rub strip on the swing arm. If the rollers don't roll or the guide is messed up or the rub strip is badly worn, replace them. If its not the guides then it would have to be the chain/sprockets. Don't believe what hte seller told you, inspect the chain and sprockets. The owner's manual or after market repair manual will tell you how to inspect the fit of the chain on the sprocket and what the sprocket teeth should (or shouldn't ) look like. On the rear sprocket it is fairly easy: with the chain fully engaged if you can pull a link more than half the sprocket tooth away then the chain/sprocket are toast. It is also possible that the sounds you are hearing are normal. Chains are somewhat noisey. When you make a sudden change from power to engine braking the chain can "slap". You might even be hearing gear noise from the transmission. Rod [/QUOTE]

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