Check battery strength and connections. I think you're right, it's running off of the alternator.
98 FourTrax w/electrical problems
My wife's bike is a 98 FourTrax 4X4. Recently I started having problems with the charging/starting system. It will start with the kick start. When i cut the key on the neutral light wont illuminate. Once I kick start it the neutral light will flicker. When I turn the headlights on they are fine until I accelerate then they dim ALOT! I am thinking that the battery is not getting good connection and it just running off of the bikes charging system. Anybody got any ideas! Please help!
