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post #1 of 3 Old May 1st, 2008, 7:10 am Thread Starter
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Yellowing exhaust pipe

My wife's CLC is starting to yellow the right side pipe from the head out. The bike smells hot and the exhaust makes a lot of crackling noise as it cools down.
I had noticed the smell and sound a couple weeks ago but really noticed the yellowing yesterday.

With 12K, I hope it's just in need of a valve adjustment, which I can do myself. I can't really afford to take them to the dealer and prefer to learn myself anyway.

Would that be the first ( or final ) step?

Joe Van Orsdol
Zimmerman Mn
'02 K1200LT
'94 K75S for sale
'11 DR650 Alaska Bike
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post #2 of 3 Old May 1st, 2008, 11:33 am
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Re: Yellowing exhaust pipe

The CLC's have a double walled and chromed exhaust that is NOT supposed to discolor like the other boxer bikes. I have seen Staintune systems on those bikes get a little yellow at the y-pipe and back but never the headers. Boxers do need a valve adjust every 6k. If it's never been done, it's WAY over due.

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post #3 of 3 Old Jun 2nd, 2008, 4:55 pm
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Re: Yellowing exhaust pipe

My '99 R1200C with a stock headers tends to do this but to no great extent. It was more-so before a recent valve adjust, which also brought on a bit of the "overheating" ticking sound on shutdown that you are hearing. A readjust of the valves (another story, but in short: an adjusting nut on an exhaust rocker came loose) the "hot" sound went away. The yellowing still happens, but is not that big a deal since it washes right off ... I've heard of others who have this occur also.

Definitely perform a valve adjust ... it's no big deal ... and that will most likely take care of the "overheating". The "yellowing" you speak of is something you will probably have to live with ... just clean it off during your wash-down ...
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