headers are red when motor warms up

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29 May 2010 22:45 #372021 by nathanhopkins
headers are red when motor warms up was created by nathanhopkins
So am i running lean or rich what do i need to do to fix issue float bowl adj or needles highe or lower

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29 May 2010 22:49 #372022 by MFolks
Replied by MFolks on topic headers are red when motor warms up
Color of the sparkplug center insulators? If white, you're far too lean, Black being rich, and a light tan, just about right.

How long do you warm up the engine? These air cooled engines will run really hot without air going through the cooling fins.
1982 GPZ1100 B2
General Dynamics/Convair 1983-1993
GLCM BGM-109 Tomahawk, AGM-129A Advanced Cruise Missile (ACM)

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29 May 2010 22:57 #372023 by nathanhopkins
Replied by nathanhopkins on topic headers are red when motor warms up
noticed riding down the road pipes were bright red .

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30 May 2010 06:14 #372035 by Patton
Replied by Patton on topic headers are red when motor warms up
Would also check ignition timing.

And assure correct spark plugs are installed.

Good Fortune! :)
1973 Z1
KZ900 LTD

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30 May 2010 06:21 #372036 by Bluemeanie
Replied by Bluemeanie on topic headers are red when motor warms up
MFolks wrote:

These air cooled engines will run really hot without air going through the cooling fins.


Like this idiot?

(youtube)


nathanhopkins, sounds like you have unburned fuel being ignited in the exhaust system. You need to check ignition and fuel system for too rich or ignition system for poor or no spark.
1980 KZ650F1, Bought new out the door for $2,162.98!

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30 May 2010 06:33 #372045 by Motor Head
Replied by Motor Head on topic headers are red when motor warms up
While checking the Ignition be sure that the advancer is working, as if not the timing will be retarded at RPM which will cause high exhaust temps. I've seen Super Trap muffler inserts melt from this on big block chev's.
1982 KZ1000LTD K2 Vance & Hines 4-1 ACCEL COILS Added Vetter fairing & Bags. FOX Racing rear Shocks, Braced Swing-arm, Fork Brace, Progressive Fork Springs RT Gold Emulators, APE Valve Springs, 1166 Big Bore kit, RS34's, GPZ cams.
1980 KZ550LTD C1 Stock SOLD Miss it
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30 May 2010 07:56 #372063 by nathanhopkins
Replied by nathanhopkins on topic headers are red when motor warms up
here are the plugs
640
Attachments:

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30 May 2010 09:04 #372070 by Patton
Replied by Patton on topic headers are red when motor warms up
Thinking 1978 KZ750 twin.

Good Fortune! :)
1973 Z1
KZ900 LTD

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