I know people in Minnesota that have plug in dip sticks. These things get really hot. Their cars turn right over, even when the cars are a a good 5 below zero. These cars are garaged though, and that makes a difference. At a Yamaha/Suzuki dealership I worked at the guy came into the shop, and left his on the centerstand idlingling. I believe it was a GS550. He was in there a really long time, and I remember him exclamating "I left my bike running!". He came back in saying it had shut off, and it wouldn't start. He seized the top end. The pipes went from chrome to blue. From what I remember, he went to a 1st overbore, new rings pistons, etc, and had rebuild the top end too. The bike was only a few weeks old. We gave him a litle break on the rebuild, he did buy the bike from us. It paid off though, a few years later, he purchased a GS750. I never let my bikes idle. The '83 GS750ES motorcycles were so cold blooded, you were supposed to start them and take off with the choke on, and just lower itadter a couple of miles. The temperature gauge on that bikes rarely gets past the middle, even on 100 degree days.
