SuzukiSavage.com - Print Page

SuzukiSavage.com
/cgi-bin/YaBB.pl
General Category >> Rubber Side Down! >> Glowing
/cgi-bin/YaBB.pl?num=1193276518

Message started by longmi01 on 10/24/07 at 18:41:58

Title: Glowing
Post by longmi01 on 10/24/07 at 18:41:58

Alright guys,
I've been riding my savage a lot for a little over two months now, and I love every minute of it! I've been doing some performance upgrades - half spacer, 152.5 main, and finally a dyna muff. I just picked up the muffler today and bolted it right on.

Now here's the issue - I just got done with an hour long drive on the freeway (cruising ~70mph) and during it, I happened to look at my muffler, and there was the slightest 4" blue/white flame coming consistently out the back.

Okay, here's what I'm wondering - is this incomplete combustion because of an incorrect fuel/air mix, or is this just something that happens to everybody. I got to thinking, and it almost seems like it's unavoidable because of the engine speed. When traveling so fast, the F/A mix doesn't have enough time to fully combust before ejected. Is this correct thinking, or am I theorizing too much?

Also, it seems to me that this could be part of a timing issue where my timing might be slightly retarded and would not be igniting soon enough.

Oh well, too much thinking for now. I'm just excited my bike finally sounds like a real motorcycle! It feels like it runs much better too.
Later,
Mitch

Title: Re: Glowing
Post by toddlamp8 on 10/24/07 at 18:59:45

I had a similar "problem" after installing my HD muffler. It seems that I am running very rich (~40mpg). All I did was change the muffler and now my bike is a blowtorch. I'm still looking for a solution. Please let me know if you come up with anything.

Title: Re: Glowing
Post by longmi01 on 10/24/07 at 19:04:13

It doesn't seem to me that installing a more free flowing muffler would richen the mixture; it should do just the opposite. However, I haven't been able to ride it enough with this muffler to see what actual effects I have gotten. As for fuel mileage, I don't think I'm suffering because I filled up with half of the previous tank on the new muffler, and my mileage was about the same, if not better.

Title: Re: Glowing
Post by SavageDude on 10/24/07 at 19:20:12

What color is your header now?( blueish or golden) If it's blue then you are still lean; and if it's kind of golden, then you are slightly rich (but OK no worry there). Glowing red inside muff is normal for mine. Maybe others can comment more on this issue.

Cheers;

Title: Re: Glowing
Post by longmi01 on 10/25/07 at 05:22:18

When I got the bike, the header was really blue right at the engine. Once I upped my main jet and did the spacer mod, I noticed it change from blue to a golden all the way down to the beginning of the stock muffler. Now that I have the upgraded muffler, I'm not sure if I'm running rich or lean; I figure it should be about right?

Title: Re: Glowing
Post by azjay on 10/25/07 at 05:49:13

longmi01 wrote:

there was the slightest 4" blue/white flame coming consistently out the back.
Mitch

our pipe and jetting are like yours, and ours runs the same way, i like watching the pretty blue flames ;D. in race engines, that would be unburnt fuel, i presume it is in our savages also

Title: Re: Glowing
Post by longmi01 on 10/25/07 at 08:30:06

azjay wrote:

our pipe and jetting are like yours, and ours runs the same way, i like watching the pretty blue flames ;D. in race engines, that would be unburnt fuel, i presume it is in our savages also

OK. I was just wondering if I was doing any damage to my bike by having it run this way. Since it hasn't gone up in flames yet, I figure I don't have to worry about it!

Title: Re: Glowing
Post by jimbonerz28 on 10/25/07 at 19:05:35

mine doesnt blow flame at constant speed but if you twist on the throttle it will blow a 10-12" blue flame out the muffler. it looks like a large propane torch or a small jet engine on afterburner.
I think it looks cool. I wanted to rig a flamethrower set up like on the old school custom cars but now Im having second thoughts, it might melt something or catch my plate on fire.

Title: Re: Glowing
Post by platinummonkey on 10/27/07 at 22:06:06

omg that is awesome! I kill for a 10-12" flame out the pipe!

Never have to worry about tail-gaiters anymore ;)

Title: Re: Glowing
Post by Savage_Greg on 10/28/07 at 06:36:09

Don't you mean a 10-12 foot flame? That would be really cool. Might melt their plastic bumper and serve them right :P

Title: Re: Glowing
Post by slavy on 10/28/07 at 20:54:02

I bet, You forgot to mention, that the muffler is debaffled /straight pipe/.
I had the same issue and i loved it and I left it alone. At night at speeds about 75mph and above, I had more than a foot of flame coming from the exhaust. The only thing that I did not like was the gas mileage.
I have SE II with baffle on my other Savage and there is a lot less flame - more like a glow.

Title: Re: Glowing
Post by Savage_Greg on 10/29/07 at 07:10:07

Is there any chance that you guys have been riding around in Southern California in the last couple weeks :P

Title: Re: Glowing
Post by longmi01 on 10/29/07 at 08:19:52

Nope - North Iowa for me. But a good wildfire might be nice to warm things up here! ;)

Title: Re: Glowing
Post by Savage_Greg on 10/29/07 at 08:41:27

longmi01 wrote:

Nope - North Iowa for me. But a good wildfire might be nice to warm things up here! ;)

:P

Stinger could probably use a flame thrower setup like yours when he looses something on the side of the road or needs to dry out his helmet ;D

Title: Re: Glowing
Post by constrapolator on 10/29/07 at 13:21:35

Hmmm...

A LOUD Harley, or a Savage with a flaming tailpipe (Batman style!)...

Who is more bad-ass?

I vote the Savage ;D

Speaking of which, Batman's gotta have a lousy MPG.

Title: Re: Glowing
Post by verslagen1 on 10/29/07 at 14:01:48

yep, only one penguin per tank full. ;D

Title: Re: Glowing
Post by jimbonerz28 on 10/30/07 at 20:39:07

slavy wrote:

Mine is a rock stock S40 with a stock sportster muffler. It is a straight thru pipe but does has perforated section inside with, I presume, packing material. Maybe the scoop I installed is causing high pressure in the air box thus causing more flame. My gas milage isnt as good as I expected (around 38-40 mpg at 70-75mph) but with my 6'2" 295lbs azz on it I cant complain. Well I wish it had a bigger tank, having to gas up every 90-100 miles kinda sucks, and I wish the bike had a 6 speed.

Title: Re: Glowing
Post by gary_ona_savage on 10/31/07 at 10:22:59

jimbonerz28 wrote:

... and I wish the bike had a 6 speed.

Do the chain conversion. Huge improvement.