Sled starts and idles fine. once up into the alpine (usually about 10-15 miles) the sled will still idle fine. But if I flip on my hand warmers the idle will drop to anywhere from 1300-1500 rpm. At the same time the voltage guage drops 3 bars. if I turn the warmers off the idle and gauge come back up. Sled seems to run fine and have good power. once driving the higher rpm's help the voltage guage come back up. What do you guys think this could be. I would think if it was a voltage regulator it would have no voltage at all the the sled would shut off. Thinking possibly the stator. sled is also not throwing a check engine light. seems like it takes some time and miles to make this problem show up.