G'Day Guys just got this terrific machine but after the weekend found a few probs. Starts easily and runs well rc valves missing outer cables, i just fixed them with springs at the optimum level, seems to work ok (track bike only).A strange thing occurs at idle, rear pot runs heaps cooler with a much reduced exhaust pressure, can put hand over exhaust on that pot and engine still runs but not on the other one! Seems to be fine from about 5000 rpm on. Main questions will leaving the RC valves in one position cause engine damage and why the pressure difference? many thanks , this is a terrific site, heaps of great info very , very usefull.

P.S plugs and pistons correct colour and the same(dak brown and black)