Well, I was out riding this weekend, and our DS just quit running. It turns over, and there is spark, but it won't ever fire. there is gas in the float bowl, I put in 2 new spark plugs, etc. but it just won't start. we even tried dragging it around and starting it, but no luck. I think it's an electrical problem. anyone have any suggestions?

 

Good question!

 

Do a compression test. When my DS burnt a valve, it would spin like crazy, and had everything it needed to run, EXCEPT compression.






Bigger.