Argh!

[trikebldr]

Since these are not factory pipes on my 1300, I figure they could be on any bike, so here I am on the general section. Have any of you had this happen? This bike has a kit from Norris cams that includes matched cams and mufflers. It does run noticeably better than my other 1300 or my original '83 1300. But, I've never seen a muffler get so hot as to blue like this! This is the right side muffler, but the left side is fine. I suspect some kind of blockage, but performance is too good to support that.
I've ever seen bluing much past the head pipes on any bike.

[Me Again]

Actually,yes I have ,but it was my own fault.
Tried to quiet a set of JCWhitney mufflers by wrapping the baffles with fiberglass .
Turned the mufflers the prettiest shade of blue

[Mr Jensee]

You might have an obstruction in them that allowed hot gas to collect. Have you had any problem with dirt dabbers building nests around where you store your bike. I had that happen once with a little Honda 200. The completely sealed the back of the exhaust with mud.

[trikebldr]

I just got this bike last Sept. in Kentucky, and it was kept inside a nicely finished walk-out basement, so I doubt any mud-daubbers got to it, but I will be pulling the baffles out of both sides to compare. I agree that it HAS to be some kind of localized accumulation of something holding heat. I seriously doubt it is any kind of obstruction. Runs too good for that.

[Lucasind]

PM sent to you.