Oil residue in exhaust pipe and muffler

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VinnyTAMU

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Apr 2, 2003

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• Jul 14, 2003

• #1

When refilling my silencer I noticed a thin layer of what looks like oil build-up on the inside of the pipe. Is this typical of a 2-stroke exhaust or is this a sign that my bike is running rich? I have a 96 KX 250.

I tried to post a picture but couldn’t get it to work. Since I am just registered and not a member can I even post pictures?

 

Rich Rohrich

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• Jul 14, 2003

• #2

It's a result of jetting that is too rich in one or more of the carb circuits.

 

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VinnyTAMU

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Apr 2, 2003

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• Jul 14, 2003

• Thread starter
• #3

Ok well I will try and dial in the jetting but in the mean time should I worry about cleaning it up or is it ok to leave it as is?

 

Rich Rohrich

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• Jul 14, 2003

• #4

It will eventually soak the silencer packing and destroy it.

 

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VinnyTAMU

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Apr 2, 2003

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• Jul 14, 2003

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• #5

will some engine degreaser do the trick?

 

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The^^Rock

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• Jul 16, 2003

• #6

To remove the splooge from your silencer/engine/frame degreaser will be fine yes.  But I wouldn't reccomend spraying degreaser down your muffler to "clean" your packing!

 

Last edited: Jul 16, 2003

Rich Rohrich

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• Jul 16, 2003

• #7

Originally posted by VinnyTAMU
will some engine degreaser do the trick?

Click to expand...

No, but repacking the silencer and correcting the jetting will. :thumb: