I have a honda 400ex that always ticked some, and faster when you revved it up. But this weekend was riding it pretty hard and it started ticking real loud. Then I rode it some more and shut it off, when i went to start it again, starter wouldnt turn it over. Figured maybe timing chain was jammed? so put it in 4th and rolled it forward to loosen chain ( think this is what i was doing) and i got the starter to kick in, but now even in gear if i start it, you can hear something inside just spinning? believe its the chain came off top gear right? how do i fix this? can i do it without pulling motor? and would it have messed anything up? wheres the tensioner on these motors? what all will need replace? thanks!