My grip heaters have been acting up over the last few months. At first, I thought it was all in my head. After today's encounter with some snow however, I know they're not right, and I have had enough. I would say they never stop working completely, just not as hot. It's intermittent, and so is the severity. Both grips are always the same. I think it has something to do with the throttle side. When the bike warms up with the heaters on, they're effin' hot when I get on. Is it a loop of wire or a slider that allows the throttle movement? I'm thinking there is a bad connection there. Does anyone know if they are wired in series or parallel? What should the current and voltages be? On my snowmobile, the ecu controls the heater output. Is that true on the F8?