hot pipes

heres a ? for y'all. I ran my scooter in to the shop today, and not that i am the most observant individual in the world but I backed it in to the corner walked over to the light switch off go the lights and at about 55- 60 ft I am seein a glow from my bike althogh It will usually git the first 4-6 inches red this sucker was glowing to allmost transparent about 12-14 inches down the pipe. it's a 06 flhxi just wondering if it is just the efi or is it that I am not that obsrevant.

Great...now I'm gonna be backing MY bike into a dark corner, pipes facing the inside of the garage..tomorrow, and flipping the light off to see if MINE glow too. Thanks alot, man, thanks alot....

scoot

The new bikes are running Lean to meet EPA crap. Pull a spark plug & I'll bet you it is snow white. Contact Sam here at Directparts & he will set you up with something to put some fuel in it. It will run better & also stop cooking your seat as well as those pipes.

Regards,
Cracker

Sounds like to me its bruning a little lean

muffler bearing

hrk cheacked the muffler bearing and changed to syn air, but I believe I'm with the rest...the efi belt is to tight causing high static discharge resulting in muffler bearing stall. pretty sure the syn air cant hurt though

Is a mufler bearing as bad as a misaligned Johnson Rod? You guys really got me concerned now.

Just cause I'm the new kid on the block does't mean I fell off the turnip trunk bucko!

I was forwarned about changing filiments so this nce guy sold me a Krypton bulb that will never burn out and is gauranteed for 6 life times. It was ony $250.00.

I'm still getting used to the bright green light at night and I've noticed a marked decrease in strength after night riding, but I'm sure I'll get used to it.

I thought if you used a mufler bearing that's what can give you a misaligned johnson rod

And there's no cure.

Let's debate this point - too lean?

If the engine is lean why is the pipe hot I would think that if you have a hot spot (glow) in your pipes it is one of the following reasons.
1. Unburned fuel (now burning in the pipes) - too rich.
2. Unburned fuel (now burning in the pipes) - spark timing too late.
3. Hot spot (glowing) on the outside of a bend in the pipes - normal
4. Pipe hot (glowing) all the way down at WOT - normal, unless is starts to melt.

Anybody?

Question from Tomflhrci98
If the engine is lean why is the pipe hot I would think that if you have a hot spot (glow) in your pipes it is one of the following reasons.
1. Unburned fuel (now burning in the pipes) - too rich.
2. Unburned fuel (now burning in the pipes) - spark timing too late.
3. Hot spot (glowing) on the outside of a bend in the pipes - normal
4. Pipe hot (glowing) all the way down at WOT - normal, unless is starts to melt.

Anybody?

Answer Air/Fuel Ratio (AFR)

Higher AFR values correspond to a leaner (less fuel) condition. The practical operating range for most engines using gasoline fuel is from approximately 11.5 to 14.7 AFR. Combustion of a stoichiometric mixture (exactly enough air to burn all the fuel) results in 14.7 AFR indication. Automotive engines with catalytic converters operate near 14.7 AFR during cruise and idle. Air-cooled motorcycle and automotive race engines require a richer mixture to limit cylinder head temperature and prevent detonation. The table below lists recommended AFR values for engines without emission controls.

More info here > http://www.daytona-sensors.com/tech_tuning.html

Hope that helps,
Cracker

Cracker,

That’s exactly my point. 14.7 to 1 AFR is the optimal ratio for efficiency and also happens to be the best point for emissions. Granted that there is a lot more involved for good emissions, but, it is wrong to think that running lean is the only way to get good emissions output. In fact, running lean causes 2 problems; one, higher NOx (NOx bad) and two, running lean can cause misfires that will then cause other bad emissions issues.

So getting back to the original issue in this thread about glowing pipes. My experience tells me that glowing pipes are from burning fuel in the pipes. This is caused by; too rich AFR below 14.7 to 1 and/or late spark timing.

Nice link by the way. Good info.

T.

I surrender

LMAO........

yea ,yea I could look it up but what the hedouble hockey stix is LMAO, 4Idnk

I LMAO when I figured it out