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Discussion Starter #1
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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Strength and Honor
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The header is glowing? :eek: 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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