Own a 2002 Pantera 600 EFI with power valves. Suspecting a ricjh setting on the oil; black plugs, consistent gumming of power valves. Would this machine be set rich from the factory? Should I set the oil injection back a bit? Any feedback as to how much I shoud set back, if any. :(

I would take it to the dealer to have them check it. My sled had the oil injection turned up for a break in, and he turned it back after that.