PDA

View Full Version : hmf pipe purple


Xater
08-03-2007, 04:59 PM
my hmf pipe turned purple near the port is this normal or a jetting issue?
yfzrider73
08-03-2007, 06:10 PM
I have a LRD on mine and it was purple and glowing red hot so i changed my jeting and it is still purple but it does not glow red any more
pro-rider46
08-03-2007, 06:41 PM
what size jets u running?
Xater
08-04-2007, 06:58 AM
Originally posted by pro-rider46
what size jets u running?
45 pilot, 172 main, stock needle. its running great.
pro-rider46
08-04-2007, 09:39 AM
that jetting seems to be good
Ant440ex
08-04-2007, 11:11 AM
That is usually caused by thin wall headers. That is how aftermarket companies save the weight compared to OEM is by using thiner tubing.