The switch is needed on Honda's. His problem and same as mine was.. Honda fans don't come on till 220 and by that time they don't stand a chance of bringing it down when stuck in traffic it just stays at 220. Is it overheating,no. But I would rather my bike run at 180 instead of 220. I put the switch on mine and use it everytime I ride. I flip it when coming into town, stop and go traffic ect. When I hit it while the bike is at 180 it stays at 180, much better than 220 for both the bike and my legs. Changing the coolant, while a good idea, will not stop the bike from running at 220 while stopped in traffic. The fan switch will. The one I got was from a company called XS Boost and they sell on eBay. I think it was about 20 and came with the harness, relay, switch and a switch mount that makes it look almost factory and was completely plug and play no cutting or splicing your wiring.