...unless you shut it off. You do that by rolling your throttle past idle and holding it there for a few seconds with the bike hot, stopped and the engine idling. Watch your cruise control light. It will go from green to yellow (off) or from yellow to green (on). You can hear a slight difference in the sound of the engine exhaust note and you may detect a different smell. The back cylinder cuts out with it engaged and activated. I don't see much difference in the heat put out from the motor though. By then my thighs are sizzling anyway.