Hello again. Another question. My crf makes a noise that I am 99% sure is the chain slapping. It happens when going from low RPM to fast quickly... Basically around turns. Also if in too high a gear, say 3rd but too low of RPM. I think the chain is just vibrating on the swing arm. That's what it sounds like. Honda manual says 1 - 1-3/8 inch slack. Mines at 1". Should I tighten or loosen it? Or is this just normal and don't worry? That slapping has to be causing wear on something I'd think.