I'll repeat the others, don't shut it off at lights. You might need to get the hell out of someone or somethings way in a hurry.

 

I turn my bike off during very heavy traffic when there's cars in front AND Behind you. if people are already stopped all around you (i.e. you are in a middle lane of a 3-lane road) no one else is going anywhere and the likelyhood of anyone hitting you is very low.

now if there's a car in front of you but no car behind you, then don't turn off the bike in case a vehicle from behind fails to see you and possibly run you over.

the problem sometimes during very heavy traffic is that i've seen the bike temp rise to 246F here in FL during the hot summer months. so turning off the engine isn't always bad so that it doesn't overheat.

 

change ur battery if it happends again after that change ur stator

 

how much of a decrease in temperature do you actually get when you turn it back on?

yea the manual switch issoooo easy to do and works great in the summer. keeps my *** a lot cooler and i dont gotta shut the bike off in traffic. all ya do is shove a wire into the positive connection(i think, did it a long time ago) of the fan where it meets the connection to the wiring harness, tape it so it dont come out, connect another wirefrom the battery, and throw a switch between those two wires. that is the first thing im going to do to my other bikes if i decide to get others.