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Author Topic: How blue is too blue?  (Read 1571 times)

ammburger

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How blue is too blue?
« on: March 15, 2012, 12:47:17 AM »
I took my bike out today for about 20mins. When I came back I had blue spots on my exhaust right outside engine and spotty going down to tailpipe connection. So, how blue is too blue and is a little blueing ok?

barenekd

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Re: How blue is too blue?
« Reply #1 on: March 15, 2012, 03:29:59 PM »
How much blue is how much you can stand. I've got some very blue sections in my exhaust pipe. I don't care. How hard were you riding it in twenty minutes? That was bluing seemingly rather quickly, but there are a lot of considerations, so it may not be of any concern. But you have a single section pipe, so it would be inclined to blue pretty quickly, but on the other hand, you may want to take a look at your plug and check your mixture.
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ace.cafe

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Re: How blue is too blue?
« Reply #2 on: March 15, 2012, 04:25:39 PM »
It is subjective, and pipes always discolor from heat to a certain extent.

However, 20 minutes is pretty fast, and I might suspect that your ignition spark is too far retarded. That causes rapid bluing of the pipe.
Check the timing.
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Jr.

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Re: How blue is too blue?
« Reply #3 on: March 15, 2012, 10:33:54 PM »
On the subject of pipe coloring,mine has
no blue ,but is a goldish straw color.?
Any ideas on that?
Jr. ???
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ace.cafe

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Re: How blue is too blue?
« Reply #4 on: March 15, 2012, 10:38:12 PM »
On the subject of pipe coloring,mine has
no blue ,but is a goldish straw color.?
Any ideas on that?
Jr. ???

Goldish straw color is just right.
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ammburger

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Re: How blue is too blue?
« Reply #5 on: March 16, 2012, 01:42:40 AM »
It's mostly that straw color with spots of blue, maybe silver dollar or a touch bigger. I wasn't riding too hard so maybe it's my mixture. Would more air help?

amm

Ice

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Re: How blue is too blue?
« Reply #6 on: March 16, 2012, 04:22:55 AM »
On the subject of pipe coloring,mine has
no blue ,but is a goldish straw color.?
Any ideas on that?
Jr. ???

Yup,,,, correct jetting and timing have been achieved.
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ace.cafe

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Re: How blue is too blue?
« Reply #7 on: March 16, 2012, 12:00:40 PM »
It's mostly that straw color with spots of blue, maybe silver dollar or a touch bigger. I wasn't riding too hard so maybe it's my mixture. Would more air help?

amm

No, more air won't necessarily help. It might make things worse.
it's a matter of having the mixture at the correct ratio, and having the correct timing.
Home of the ACE Fireball 535 Bullet,  Ace GP Hi-Lift Roller Rocker Head . Pistons, cams, etc. Highest performance Bullet engine mods available .  AVL mods. Redditch 700/750 Twin mods. UCE kit soon.

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Blltrdr

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Re: How blue is too blue?
« Reply #8 on: March 16, 2012, 06:12:56 PM »
Some Blue Buster will clean that pipe up.
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baird4444

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Re: How blue is too blue?
« Reply #9 on: March 16, 2012, 08:14:45 PM »


     There is also a product out there called BLUE JOB...
                                    and I like it!!    ;)

                 http://www.blue-job.com/

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Desi Bike

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Re: How blue is too blue?
« Reply #10 on: March 16, 2012, 09:20:38 PM »
+1 on the Blue Job.

Fantastic stuff.

I had a thread on the UCE board a few months back about Blue Job on my cooked pipe.
http://www.enfieldmotorcycles.com/forum/index.php/topic,12227.0.html
میں نہیں چاہتا کہ ایک اچار
میں صرف اپنی موٹر سائیکل پر سوار کرنا چاہتے ہیں

baird4444

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Re: How blue is too blue?
« Reply #11 on: March 16, 2012, 09:51:34 PM »
+1 on the Blue Job.

Fantastic stuff.

I had a thread on the UCE board a few months back about Blue Job on my cooked pipe.
http://www.enfieldmotorcycles.com/forum/index.php/topic,12227.0.html

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ammburger

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Re: How blue is too blue?
« Reply #12 on: March 17, 2012, 02:08:36 AM »
I have the Boyer micro digital so I'm not sure it's timing? Bike idles and starts great! I've never fussed with jetting and just a little bit with the idle and air mixture. I'll check past threads to figure out how to get that mixture just right before I open up my carb for surgery.

In the mean time, does a little blueing hurt?

Desi Bike

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Re: How blue is too blue?
« Reply #13 on: March 17, 2012, 06:16:42 PM »
The blue is just cosmetic, unless you really burn the crap out of it, then you'll end up with holes, which is anti-social
میں نہیں چاہتا کہ ایک اچار
میں صرف اپنی موٹر سائیکل پر سوار کرنا چاہتے ہیں

jedaks

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Re: How blue is too blue?
« Reply #14 on: June 18, 2013, 10:13:48 PM »
Blowing the dust off this thread....

I'm confused as to the cause of excessive bluing. Some folks
say it is caused by too rich a fuel mix and/or a too retarded
spark, therefore causing too much heat.

Others say it is caused by too lean a fuel mix and too advanced
ignition, therefore causing too much heat.

So, is an excessively blued header pipe really a reliable
indicator?

And, if the bluing can be removed with some arcane
product, does that "reset" the header pipe to its unblued glory or does it just blue again to the same degree it was before it was cleaned?