On my Kulana Moon Dog, the pedals alternate between freewheeling when coasting, like they should, and engaging the chain, forcing me to pedal, then releasing again. I can stop the locking up by applying pressure to hold the pedals in place, but hear, and feel, something locking up, which seems to be inside the crankset. Should I take apart the crankset and see what the problem is? I was hoping it would work itself out during the break-in period, but it only seems to be getting worse.