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Toobold30

Blueing of Head pipe 04yz450F (stock)

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Hey guys is it normal for the Head pipe to be blueing.. Mine has blued about half of the headpipe...was running good untill the other day..had to adjust the fuel/airscrew...but before that..no popping or sputter or backfiring on decel...but pipe was still blueing...thanks

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My FMF turns a bright blue clear to the muffler can in the desert. It's normal. Four stroke exhausts are hot! "Avoid direct contact with the skin..." :)

PS: if you want to see something, start your bike an hour after sundown and let it idle in the dark for about 1-3 minutes. Then you can come back and do a search for threads on "my header glows red...&%$#@!" :)

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That is because your headpipe is Ttanium! Looks cool doesn't it! couldn't be a better color! LOL!

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That is because your headpipe is Ttanium! Looks cool doesn't it! couldn't be a better color! LOL!
Except for the can, the entire stock exhaust system of a YZ450 is titanium.

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