help with exhaust

[M2R]

hey guys my bike exhaust is getting very very hot like it goes blood red can u help me fix it

thanks

 

[doona_12]

i took my exhuast off and its goood..
its just heeps loud and windy,
but its just a dirt pocket bike haha

 

[M2R]

its when i start the bike not after riding

 

[FOXraceWES]

A pocket bike you say?

 

[M2R]

no 125cc lifian

 

[quincy]

i think i have herd of this before. is it down around the header pipe.
i think its got something to do with the fuel/air mixture ratio. dont no how to change it on those carbs tho. either that or a tuning problem (either rich or probable lean).
hope it can help out a bit,
joey.

 

[wogtaz ryder]

that must look cool!

 

[roost666]

if your bike is runin lean be careful u could blow it man....if its not ur header gettin hot i reckon u need a repack not sure tho just an idea try cactus he knows all

 

[Panda_ET]

yepo lean as buggery mate . Lean mixture=not enough fuel much hotter burn. overly rich would mean black smoke from exhaust =too much fuel and generally a cooler burn