i am working on a f910 for some people we know..he said it wouldnt run right so he installed a new coil (its square) this is an onan engine and it has no id tag on it but i believe its a performer engine..anyway when i went to pick it up it would hardly start and pull itself on the trailer..i couldnt get the fuel pump to work so installed a new one...it will start and run but surges or hunts and still doesnt have very much power..i took the top of the carb off and blew thru the main jet and the little straw with the multiple holes in it... it was clean and in good shape...full fuel bowel and the needle looked ok...perhaps still electrical?..points and condenser?...any other ideas..thanks for any input..by the way i did install a gator style elect pump and it surges whether its on or not so fuel level doesnt seem to matter...thanks again