RE: 650 Rincon, great ride, low power??
Yeah chief, start w/ a fresh plug and do like you would on the race car - shut er down and glide to stop. Hondas are usually pretty good on gas - has this one been?
Maybe it's getting too much gas and the plug will read rich. Running rich might cost ya plugs and fuel, but running lean could damage/cost ya a motor (or minumum burnt valve)so take care of a lean condition right away. Good luck.
I'm heading out today for one of my kinda rare recreational rides on my Bruin.