BruceH
BBB Big Bore Boss 322
You already have the cover off so you might as well pull the other chain and make sure it's good. Rotate the motor until the cam is about where it's supposed to be, pull the chain, and line the marks up. It will take about 5 more minutes. Just be careful when pulling the tensioner because it's fairly easy to tear the rubber seal on the sharp block edge. Back both bolts out evenly so the seal isn't pressed against the block when you finally take one or both bolts out to relieve tension on the guide.