Anyone else had issues with their bikes overheating after having a full exhaust installed? I just picked up my bike last Wednesday after having had a BMC race filter, full akra, and pcIII installed and I've put about 300 miles on it so far and noticed that the bike heats up to 222 very quickly after coming to a stop. Even in the 50 degree weather I've been riding around in recently, I'll be riding at 180 degrees and the bike will kick up to about 200 degrees before I even finish rolling to a stop and the radiator will flick on in less then 30 sec. sometimes. I never rode the bike without all of that installed so I'm not sure if it's just a honda thing, but my other bikes and the bikes I've had previously did not display this habit of heating up so quickly. My presumption is that it's the headers from the exhaust dumping heat onto the radiator.

Anyone ever tried thermal exhaust wrap on their headers? Make any difference?

I haven't dyno'd or mapped my pcIII yet. Could that be the problem?

Any help would be greatly appreciated. Thanks.

Adrian

 

Sounds like a very lean condition - notice any backfires?

If you haven't mapped it yet - do so... it's probably the cause. If you can easily get a plug out, do so - it'll probably be light coloured...

Woot.

 

It's normal for these bikes to climb in temp when you come to a stop. You don't have any air cooling the radiator, and the bike is idling....and so is the water pump. The temp on my bike is usually always around 180, even at night when it's 35 degrees out. Now, if you're going over the 230 degree mark, I would have it checked out to be safe, but in stop and go traffic, it's usually normal.

 

I think WOOT is on the right track. Sounds like the top end might be getting hot from a lean condition. Might even have an advance curve thats aggressive without the proper amount of fuel for the load conditions. I would hope for a creep (not an instant climb) in temp during a stop, even after some hard riding, one to two minutes. 223 and then going down is normal for the high temps during stops, while at 180 during the ride. A loaded dyno run should figure it all out. Good luck!!!

 

Ok, I was thinking that it could be my tune. I'll see if I can find a dyno ASAP because it is a little disturbing how fast this thing gains temps even in this weather.

 

+1 on what woot said. same thing happened to my bike when i changed out the exhaust before i got a power commander, but once i got one and got it tuned, problem solved. the temp will still climb when you are at a stop, just not nearly as fast. like woot said, a lean bike will overheat from the cylinders outward very fast.

 

+1 on already stated comment - your running lean

 

Guys, come on the honda heats up quickly at idle. Working at a honda dealership and have rode about a 1000 of them and they all do the same, 215-230 is about normal at a idle for a period of time. High weather temp doesn't help either!

 

When you change your pipe and/or your airfilter you change your map. Even if it didn't heatup you still have to properly tune the bike for the new airflow, outflow.