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General Category >> Rubber Side Down! >> no backfire yehaw!!! but??
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Message started by streece on 03/10/07 at 16:50:21

Title: no backfire yehaw!!! but??
Post by streece on 03/10/07 at 16:50:21

i put the screamin eagle on ....wow...i rejet to a 155 main and a 55 pilot. road for just over 100 miles today and it never backfired once...yeeehawww.....however, my muffler was turning blue after the first 30 miles....i checked my idle srew when i got home and noticed it was only about 3/4's of a turn out....Do i need to back it out more? i did noitce black soot in the tip of my exhaust....thanks for all your help guys..

Title: Re: no backfire yehaw!!! but??
Post by LANCER on 03/10/07 at 17:33:22

Screaming eagles are single walled ... yes ...expect some discoloration.

Title: Re: no backfire yehaw!!! but??
Post by Greg_650 on 03/10/07 at 21:46:46

LANCER wrote:

Screaming eagles are single walled ... yes ...expect some discoloration.

I didn't know that. Since I was thinking that the 155 was possibly too rich the bluing didn't make sense. Now I understand.

Title: Re: no backfire yehaw!!! but??
Post by Greg_650 on 03/10/07 at 21:51:35

streece wrote:

You only have to turn the idle screw to make the engine idle smoothly. There is not a particular set point 'cause all bikes have little differences. Once you get that set, then adjust the idle speed and forget it. You're good to go.

The black soot could be from the 155 main. Check your plug and see what color it is.

Title: Re: no backfire yehaw!!! but??
Post by streece on 03/11/07 at 05:46:14

i checked the plug last night and it is chocolate brown....i think this is where it's supposed to be. right?

Title: Re: no backfire yehaw!!! but??
Post by Crusher0964 on 03/11/07 at 08:30:06

Jumpin in here... I use an old fashion dwell meter to adjust mine. Simply hook up on the coil of the cyl. carb. you are adjusting (for other multy cyl. bikes) set to rpms and find the middle point if the high and low rpms as you are adjusting carb. Always got very good results.

Title: Re: no backfire yehaw!!! but??
Post by Greg_650 on 03/11/07 at 08:34:02

streece wrote:

i checked the plug last night and it is chocolate brown....i think this is where it's supposed to be. right?

Well, tan is nicer, brown isn't too bad.. How much WTFO have you done?

Title: Re: no backfire yehaw!!! but??
Post by Greg_650 on 03/11/07 at 08:43:18

Crusher0964 wrote:

The idle air screw is adjusted for best running. Turning the screw goes all the way in or all the way out goes from bad to bad. It is the middle good point that you look for. It is supposedly set that way at the factory and then plugged...

Then you set the idle speed with the thumb adjuster on the other side....a real good place to use your tach/dwell meter, too. What is it? 1150 +\- 50 RPMs...

Title: Re: no backfire yehaw!!! but??
Post by Crusher0964 on 03/11/07 at 11:14:13

Greg_650 wrote:

Yep the idle air mixture screw. Thats the part I left out. Thanks for the correction. ;)

Title: Re: no backfire yehaw!!! but??
Post by streece on 03/11/07 at 17:52:18

Greg_650 wrote:

Well, tan is nicer, brown isn't too bad.. How much WTFO have you done?

well i'm new to all of this so you're gonna have to bear with me here....what does WTFO stand for?

Title: Re: no backfire yehaw!!! but??
Post by Sportster on 03/11/07 at 18:19:23

I've never had SE mufflers turn blue on any of my Harleys.

Title: Re: no backfire yehaw!!! but??
Post by streece on 03/11/07 at 19:06:06

my are blueing right where the baffle is. A section about 6 inches long. i assume thats where the most heat is? don't know though.

Title: Re: no backfire yehaw!!! but??
Post by streece on 03/11/07 at 19:08:51

oops i meant ......mine.

i did pull the baffle tonight but my gosh way too loud.......the blueing is the same length as the baffle...doesn't matter anyway i still love the sound...still running great and still no backfire....i guess i'll just ride on...

Title: Re: no backfire yehaw!!! but??
Post by Greg_650 on 03/12/07 at 05:05:59

streece wrote:

well i'm new to all of this so you're gonna have to bear with me here....what does WTFO stand for?

It means that you are going as fast as you can:)

Title: Re: no backfire yehaw!!! but??
Post by LANCER on 03/12/07 at 06:34:02

Greg_650 wrote:

It means that you are going as fast as you can:)

You are funny dude, I wish we were not on opposite sides of the country ... it would be fun hang'in out

Title: Re: no backfire yehaw!!! but??
Post by Savage_Rob on 03/12/07 at 09:10:22

Y'all used to be relatively close but Greg moved cross-country not too long ago and documented his trip on this site.

Title: Re: no backfire yehaw!!! but??
Post by Greg_650 on 03/12/07 at 09:43:12

LANCER wrote:

You are funny dude, I wish we were not on opposite sides of the country ... it would be fun hang'in out

Yeah. As Rob said, there we were thinking that we were about the only Savages on the east coast. Then we moved west and found out that you and Steelwolf were there all along...

Title: Re: no backfire yehaw!!! but??
Post by LANCER on 03/12/07 at 09:53:53

Let's all move to the middle, like in Oklahoma, and set up a Savage community.

Title: Re: no backfire yehaw!!! but??
Post by justin_o_guy on 03/13/07 at 08:13:48

Naaaaah, who would we terrorize? Each other? No Sportsters to scare, what fun would that be? I can't wait to get this thing ready to go looking for trouble. Can't see getting too weird with it knowing I am on the end of the cam chains tensioner adjustment, well, slightly past spec limit. Cmooooon cam & chain,,

You spose that will dictate a rejet?

Title: Re: no backfire yehaw!!! but??
Post by Greg_650 on 03/13/07 at 08:28:11

Good question. You getting a new cam, too? Both lobes will have longer duration...

You'll have a bigger and longer "suck" and "blow"...the mixture stays the same, but the amount changes.

Title: Re: no backfire yehaw!!! but??
Post by justin_o_guy on 03/13/07 at 09:47:32

I'll bet I am gonna wish I hadn't opened that K&N flat filter & stuck it in the airbox. I will be wishing that I had a pod of some sort. Owell,, I will have to use this long enough to keep it from being a total waste. My Bad.

Title: Re: no backfire yehaw!!! but??
Post by Greg_650 on 03/13/07 at 12:19:19

justin_o_guy wrote:

I don't think that'll change that much on that end. The engine still has more capacity on the intake then the exhaust side.