11-06-15, 11:51 PM
Yes, your tensioner could be faulty/not set quite right and your timing still correct as the tensioner tensions the slack side of the chain not the side that is being driven. So your timing can be fine, the bike runs well but is noisy because the slack side of the chain isn't having its slack taken up properly. Way too much slack, much more than is necessary to make a noise and then the chain will jump a tooth and throw the timing out. But to reiterate, yes the timing can be 100% but noisy at the same time. Obviously if the chain is badly stretched then your timing will be slightly out but not enough that you would notice in terms of performance. I think you are putting too much emphasis on the fact that your timing is correct. This isn't the problem here.