Ok,I need help--the rod seized on the crank. OH MAN! What possible causes? Oil changed regularly and coolant in good condition. Bike used mostly on the street. Less than 3000 miles. Bike has been uncorked and was running great. It appears the piston skirts are scored. Does this mean the nickel sil coating is gone? The cylnder looks good (no scoring. A complete tear down is now in order isn't it?!