Any 2 stroke experts out there

My Yamaha Banshee used to condensate really bad at idle. Revving it up would blast a nasty black water and oil concoction all over. And that quad was fast.

I HIGHLY doubt its a carb issue. If the carb was bad enough to fill the intake, crankcase, cylinder, AND exhaust. It just wouldn't run....

That's a cool bike with a sweet engine. I have a moped with a Sach's engine. Also have a Puch powered 'ped.