Well, I´m here in Detroit area. Need some tech info on adjustments. 1.) Are these bing carbs any good? I´m having bad luck. 2.) Is there somewhere I can order 10mm x 3/4 plugs(G63- Champions)? Bike still running but while storing varnished the carbs. She want to high rev like air leak or lean. One the road runs on (1) cyl. like fouled plug. \