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Twins Technical Talk Technical Talk for Hinckley Triumph Twins: Bonneville, T100, Speedmaster, America, Thruxton, and Scrambler.

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Old 08-23-2012, 10:16 PM   #1 (permalink)
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Headers Glowing Red Hot

Just got in from a ride. Let the bike idle for about a minute in the driveway, and I noticed that the headers, right at the first bend where they attached to the motor, were glowing red hot. I shut the motor off, and within 3 seconds the red was gone. Is this normal?!?
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Old 08-23-2012, 11:23 PM   #2 (permalink)
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I've never noticed them after a ride but if I let the bike sit at a high idle, say 1500-2000 RPM they will glow red. Even if I position a box fan or two on either side of the front wheel it still does it eventually glowing about half way between the first and second bend. I usually quit by then and wait for it to cool down before continuing.

Seems scary but I don't notice any adverse effects.

Art.
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Old 08-24-2012, 01:07 AM   #3 (permalink)
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meltdown normal

normal
but don't let it idle too long but
it is normal, on single wall headers
see it on the race bikes a lot
it does seem strange to see
when you first see it
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Old 08-24-2012, 08:43 AM   #4 (permalink)
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Thanks for the replies. Glad to hear that it's not unusual. Was afraid that something was seriously wrong.
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Old 08-24-2012, 04:09 PM   #5 (permalink)
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I had a Honda 450 dirt bike with a Yoshi pipe on it that would glow white it got so hot. My buddies would light their cigarettes off it.
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Old 08-24-2012, 04:15 PM   #6 (permalink)
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You don't say what model or year you have, but this was a common complaint right from the start. My 01 would glow almost to the mufflers. Solution, ditch the AI and use some freer flowing exhausts.
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Old 08-25-2012, 06:02 PM   #7 (permalink)
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It's a 2008 Thruxton. AI removed, with TORs.
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Old 08-26-2012, 06:21 AM   #8 (permalink)
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Quote:
Originally Posted by crowe938 View Post
It's a 2008 Thruxton. AI removed, with TORs.

Well with the AI removed and TORS that doesn't sound normal at all. You're either thrapeing the nuts off the bike or there is something causing it to seriously over-heat. I would be checking the fuelling as it sounds like you are running very lean to me.
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Old 08-26-2012, 06:39 AM   #9 (permalink)
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A haiku:

Your headers glow red
Fear not, this is quite normal
But don't touch it, yeah?
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Old 08-26-2012, 10:21 AM   #10 (permalink)
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Rejetted for the TORS?
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