Last weekend my nephew was riding my 98 Blaster he was driving and said the 4 wheeler lost power. He continued to ride until it quit running (he's a dummy) I tried to kick start the 4 wheeler, and pull it off(jumping the clutch) to no avail. Its not turning over to crank. It had oil in the case and gas. The clutch is very hard to shift? how can I investigate the problem?