I've been having trouble with my chain getting loose all summer. I've tightened it 3 times already this summer (about 4k miles) and have travelled about 2 marks on on the indicator on the swing-arm. The pin-to-pin measurment says I am still in spec (barely). This is my first chain driven MC, is this typical behavior, and is there a chain and sproket change in my near future?
Also, the bike has less than 9k miles total, and I do a pretty good job of keeping the chain lubed. Isn't it a little early for this?