I have a schumacher Swift and its playing up! Its starts first time every time not a problem. This morning i was running it on 20% fuel and it was running like a dream.

I put 18% fuel in (all i can get now) and it ran for about 3 mins before cutting out. I've tried all the appropriate tuning to compensate but the tuning is just way out. It is smoking like chimney all the time and yet when i put it to full throttle it just dies. This is obviously showing signs of being too rich and too lean?!?!?!

If i slowly ease the throttle on then it will make max power without cutting out but it sounds rough and smokes like crazy. Although the engine is screaming its not even going half as quick as it was this morning.

Any help would be greatfully recieved as its (not) driving me mad!

Cheers guys