At the risk of embarassing myself, can any one tell me if my WR 450f ( 2003) has to have a battery to start and run properly? I bought the bike used without a battery. I have ridden the bike at least 25 hours with out one and then I suddenly had no spark after it sat for a month. I had thought my cdi was bad but it would not run with a new one installed. Now for the first time I put a battery in and it fires up fine. In fact the bike has more punch than ever. I also appear to have a major short. I get a full 12 v when I connect between the battery negative and the main ground wire with a meter without the bike running. I also have continuity between naerly any hot wire and black wires( and the frame). Let me say, the bike does not have a main on off switch, only a tethered kill switch and a push button kll switch. Do I need a main switch to cut the ower from the battery? The regulator is kicking back around 13.5 to the battery so that is not the issue. My stock head and tail light work fine when the bike is running, so that tells me the charging lighting coil is fine. The charging coil(stator) must be operating for the bike to run so well and it test good for specified resistance. Do I risk damaging anything if I use the bike? Some one heeelllpppp!!