I acquired a WHIZZER that's a 1999 model with a WC1 engine. Has 250 mi. on it. It hasn't been started in 5 years. I tore apart the carb and cleaned it out. I got it running. There's oil coming out the breather. It wont idle, even if I screw the idle screw in all the way. Was running good till today. Now it labors to get to 20 mph.CAUSE? I also read that you can drill out the carb spacer to get more ponies out of it, I'd like to get at least 30mph. BUT my intake is different then what is saw. On mine the intake is part of the cylinder and there's a flange that screws on to it for the carb. The bike is in good shape and I want to be able to drive and have fun on it and at least keep up with my brother-in-law who has a SACH. Any Help? thanks