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Message started by scrappy on 04/15/10 at 13:48:17

Title: stock 2006 06 s40
Post by scrappy on 04/15/10 at 13:48:17

hi im new to this site and its my first new bike. i was wondering if it is possible to mod the factory exhaust to make my s40 sound meaner and louder. just to let u know the bike is all factory i believe but the brass plug is out of the air/fuel mix screw spot and if possible any other cheap mods that can be done. THANKS

Title: Re: stock 2006 06 s40
Post by Yonuh Adisi on 04/15/10 at 13:55:48

Several of us have changed the mufflers on our bikes. From relatively expensive super traps to Harley take offs and Jardine mufflers. You can get the Harley take offs and Jardines at your local Harley shop or get them all day long from e-bay for very little money. Each will change the sound of the exhaust, but many advise that you adjust air/fuel mixture or at most re-jet after swapping to such a muffler.

Title: Re: stock 2006 06 s40
Post by John_D FSO on 04/15/10 at 18:30:47

Welcome! I believe some have drilled holes in the plate in the end of the stock muffler, can't remember if they liked the results. I think (maybe? :-?) there's also a method of completely removing the back plate in the muffler, and partially debaffling it.

Title: Re: stock 2006 06 s40
Post by Routy on 04/15/10 at 21:45:26

This is easy, and its louder, and it sounds ok to me ;)

http://p1.bikepics.com/pics/2010/03/14/bikepics-1926789-full.jpg

Title: Re: stock 2006 06 s40
Post by scrappy on 04/16/10 at 11:46:52

did u have to mod the carb or just adjust th air /fuel mix

Title: Re: stock 2006 06 s40
Post by Bubba on 04/16/10 at 14:03:58

welcome scrappy, I also have the 06 and the first thing I did was pull off the 25 lbs anchor that they call an exhaust. I picked up a dyna power (basically an after market hd dyna) off ebay...it is almost a straight through and is incredibly loud but has a very nice rumble to it. So far I've gone to a half spacer (you'll see that mod on this forum alot) and have the air mix screw out about 2 1/2 turns.
I LOVE it. I may go up on my main but I'm at a mile high and it's running big and bad right now.

Title: Re: stock 2006 06 s40
Post by bill67 on 04/16/10 at 14:10:58

You need to go up on high and low speed jets even with the stock muffler,To make it run better and it will have a noticeable more power.

Title: Re: stock 2006 06 s40
Post by james may on 04/16/10 at 19:12:36

I have a jardine muffler on my 02 savage and I think it sounds the best out of any i've heard on youtube. Look up jardine s40 or ls650 or savage. You'll need to richen up the fuel a little. you can have the factory fuel adjuster on the carb drilled out so you can adjust it or you can reject your carb. These bikes have a problem with lean and backfiring which can be made worse by a freer flowing exhaust if you don't add more fuel.

Title: Re: stock 2006 06 s40
Post by bill67 on 04/16/10 at 19:15:35

Bikes from the last 30-40 years have come lean from the factories and can have improved performance my jetting richer.

Title: Re: stock 2006 06 s40
Post by Routy on 04/17/10 at 06:47:11

5F4F5E4D5C5C551E191D151B1B2C0 wrote:

did u have to mod the carb or just adjust th air /fuel mix

If this is in question to my pic post,..... I had done the spacer mod before drilling the exhaust to correct a lean surging condition at 1/4-1/2 throttle range,...which it did correct beyond my expectation. Drilling the exhaust didn't change anything that I could tell. My bike runs and idles perfectly w/ all stock jets, and the plug has never been removed from the air screw hole either. I don't believe in rejetting unless there is strong evidence that it needs to be.
If I was the rider that gets heavy into the throttle in hot weather, or ride long distances against headwinds, I mite have to take another look for evidence of lean fuel that everyone talks about.

Title: Re: stock 2006 06 s40
Post by scrappy on 04/17/10 at 10:57:39

thanks 4 all the info it will help out.

Title: Re: stock 2006 06 s40
Post by Sandy Koocanusa on 04/17/10 at 21:17:00

I pulled all the innards out of my stock exhaust and drilled holes in the back plate, which changed the sound somewhat. Then I put a Jardine slash cut on, which changed the sound entirely. Kay says when the weather is just right, she knows I'm on my way home when I come around the corner on the highway about three miles from the house.

My boss, who rides a big ol' Harley, won't ride behind me because it hurts his ears. Cars no longer tailgate me... ever. I like it. I'd do it again. I liked Savage Greg's Raask, and Julie's SuperTrapp too.

A word of advice... if TOO loud is a concern, like if you don't want to irritate close neighbors, the Jardine might not be right for you. If you want people to think the 82nd airborne is coming though, it's just right.

Title: Re: stock 2006 06 s40
Post by LANCER on 04/18/10 at 03:21:32

For quick easy and cheap, swaping a HD dyna or sporty muffler and retuning the carb is as good as it gets. You get the sound you want without being too loud and harsh, the power goes up and the neighbors are not offended.
As mentioned already, the HD mufflers can be found at local HD shops where many new HD owners have them removed and changed at the time of purchase, so they are brand spanking new...and they last a LONG time...good quality muffler. Most shops have a pile of them in baack and will sell for $20-25.
go to ebay and get a pair of them for $25 + $20 shp

The LS650 engine really like the HD mufflers...in fact, Suzuki should just start putting them on the bike to start with.

Title: Re: stock 2006 06 s40
Post by Charon on 04/18/10 at 07:13:03

Just bear in the back of your mind that anything you do that makes the motorcycle louder is a violation of Federal law. It isn't very likely the Federales will check you, but they can.