i had a buddy tell me that a weak coil could be the reason my 97 xr400 is hard starting after it sits for a while. anyone else had these thoughts explained to them or update their ignition system. i have an Edelbrock pumper that i just bought but haven't installed yet to try and solve the hard starting problem but if it is ignition, i may not need it. by the way, i did replace the 97 carb with a 2000 model year carb and it did make the bike run much better. i just have the problem where if the bike sits for over a month it is a hard starting beast. doesn't matter if i drain the carb or not.