I have a 2007 America w/ 7000 miles. Here's my problem.....this morning my bike died several times at stops. I got the bike home & now the clutch will not fully disengage the tranny when shifting to 1 st. or 2nd. from idle (e.g. the engine dies). I tried to adjust the clutch per the instructions in the service manual without success. I'm thinking the clutch is worn & needs replaced, but could this be a lubrication problem????