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XR650l red hot pipes

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                2002 XR650l

Last night while warming the bike up two separate times I noticed the header pipes (FMF powerbomb) starting glowing red about 30 secs after being on choke. I'd say from the head till about 8" down on the pipes were glowing. I'm hoping this is normal and I just haven't noticed it before. Any thoughts ?

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Stainless will glow dull red in the dark at about 750°F.  It'll easily see that temp with the excess enrichment fuel leaving the cylinder and the bike sitting still.  As the pipe gets hotter and burns the excess fuel better it'll gain heat more quickly.

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