Header glowing on DR350 - Sportbike Forum: Sportbike Motorcycle Forums
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post #1 of 3 (permalink) Old 09-18-2009, 05:42 PM Thread Starter
Join Date: Sep 2003
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Exclamation Header glowing on DR350

I just got this 90 DR350, it has a thumper kit, all kinds of updates, but is really hard to start and the header glows, really glows. After only 5 minutes or so. Help!
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post #2 of 3 (permalink) Old 09-20-2009, 06:19 PM
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Location: Central IN
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The header is glowing? Some things that leap to mind include a restriction in the exhaust, the valve clearances are off and combustion is happening outside the cylinders, perhaps unspent fuel is igniting in the exhaust when it gets O2.

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post #3 of 3 (permalink) Old 10-01-2010, 10:39 PM
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Don't ride it until you figure out what is causing so much HEAT!

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