I too had the sensor problem, but it was a cold solder joint. That meant is would crank beautifully and run great for a minute, then go dead. As soon as it got warm the solder joint crapped out. Bill "the detective" figured it out for me.
Today a year later, different problem!!
Has anyone had an ignition battery drained dead everytime they run the engine?? I've put new batteries in and have same result. I thought the switch might have a short but it checked out fine. Is it possible for the ignition box to go bad and drain the battery, yet still work the engine???
Thanks,
Jim