Cherry red pip - Kawasaki KLR 650 Forum
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post #1 of 5 Old 04-07-2011, 10:31 PM Thread Starter
Join Date: Mar 2009
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Cherry red pipe

Ok guys, I have quick question for anyone that can help me out. Did the .22 mod. Took the snorkel out. Put a supertrapp with 8 discs on. Started it up and sounded pretty good. Then I noticed the pipe from the block to the S pipe started glowing cherry red. I'm guessing I'm running real lean and about to ruin my engine or have a restriction somewhere. Can someone push me into the right direction?

Last edited by marinetaco; 04-07-2011 at 11:04 PM.
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post #2 of 5 Old 04-07-2011, 11:07 PM
4th Gear
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Location: Paso Robles, CA.
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What year is your KLR? It is very common for the 08+
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post #3 of 5 Old 04-07-2011, 11:09 PM
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Location: Redondo Beach
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With that configuration, I would suggest three or four discs on the SuperTrapp.

With eight discs the engine is seeing the equivalent of an open pipe; way to much flow for the intake/carb changes you've made.

With three discs, the engine is seeing about the same size opening as the stock pipe.


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post #4 of 5 Old 04-08-2011, 02:21 PM
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Join Date: Sep 2010
Location: Phoenix/Mesa, AZ
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My Ducati always did that when I was "warming it up" in the morning. And I've seen lots of other Ducati's, and other bikes do that. If the pipe material is rather thin, it's pretty easy to heat it up enough to shed some light.
But I've never seen my KLR do that.

Red '09
Mesa, AZ
PHBiker: " I learned two important things today. First, no one really cares if I wash my bike. Second, it's red."

Last edited by TrabFTW; 04-08-2011 at 02:30 PM.
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post #5 of 5 Old 04-08-2011, 10:52 PM
1st Gear
Join Date: Nov 2008
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Had my stock 08 for two years before I noticed it while it was warming up in my shop one night.I've turned the air screw out 2 and a half turns and it still does it if it idles for a while with no air flow.Not going to worry about it.
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