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Old 09-21-2010, 01:27 AM   #13
JensEskildsen
Studly Adventurer
 
Joined: Mar 2009
Location: Denmark
Oddometer: 961
Why would you let a aircooled engine idle for 30 minutes?

Do you run it without oil aswell, to check for knocking sounds?

Headers CAN glow red, they do get awfully warm very fast, some do, some dont glow.

Run a low rpm/throttle sparkplugcheck, it the plug is white or gray, adjust the CO screw, that could help.
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