I just picked up an 84 TRX200. I can start it right up with jumper cables attached, but when they're disconnected, it usually shuts right off. Strangely, the symptoms are somewhat intermittent. Today I warmed it up for a little bit and was able to run it without the cables attached and rode around for a while. After it sat for an hour or so, no start or idle without the cables. It has a totally dead battery but if everything is in order shouldn't it start right up with the pull start anyway? JD