Nope, no diesel fuel in 'er. But I strapped on its new head (because I keep stripping threads popping plugs in and out since I foul so often) and after a few kicks she sprang back to life and idled and reved fine for approx 3-5 minutes then slowly died down to nothing. After trying again for a while I removed the plug and it was extremely dark/wet. So black that it almost looked like motor oil! And this was a brand new NGK plug prior to this. So I ran to get 3 more plugs (like I say I go through them) and I put one in and immediately it was fouled and so I put in the next and again it ran for awhile then died again! I have the mixture screw to its leanest, no air filter, and yet it still runs rich(my assumption due to color) ! Like I said before the carb is brand new. Could it be one of the auto choke parts or a jet that is too big? I tried removing different hoses as it was idling and it began to sputer and die as I did so. There was a good vaccum from all. As I stated before there are 2 vaccum hoses going to the carb, one on the front side to top diaphram and another just below it to the middle of carb, appears to be in mixture chamber or just above. So does this help? I'm about to give up, moped/scootering is a BLAST but is it suposed to be this hard!?