Well, the good news is that I finally tracked down the bad part in in my 93 SL650. It's the cutoff switch that sits under the cdi (polaris part no. 4060096). The bad news is that it is discontinued. Anyone have one from an old machine I could buy? BTW, mine has 4 wires (red/blue, red/white, yellow, orange). Found one on ebay but it only has 3 wires. Not sure why they are different.