I have a 96 wxc 610 and on good day I go about 150 lbs and can start mine on the seat. When I have trouble starting it's usally due to the idle set to low. The bike definately has a procedure. start with top dead center and give a full boot all the way through. Once you get it staightend out you can take the kick side cover off and rotate the return spring on the kick gear. I found 1/4turn looser makes it easier to get a good boot on it. But makes top dead center more important. Hard start is in the carb for sure. Good luck.