Okay, my son was riding the other day and it started acting like it was running out of gas, it had gas in it and still the same. I took the carb apart last night and cleaned and also the filter and filter box...all clean. Started right up and ran great last night. We went out today and he rode the crap out of it this morning and early this afternoon and it just died on him. It is getting gas and plug is not wet and is tan. I get it to fire back up and she is vibrating very bad. While I was working on it last night I pulled the front clutch to pull 2 of the 6 rollers out also, but tighten everything back up. I have no clue on this and why all of the sudden. Any suggestions or help would be great...Many thanks in advance...Chris