Suzuki S40 Boulevard

**lieutenantdave** · 29th November 2012, 20:04

HI guys, new to the bike scene. Purchased a S40 for my first bike a month or two ago... any advice on how to make the bike sound louder and not like a lawn mower?

Cheers,

**scumdog** · 29th November 2012, 20:08

Originally Posted by lieutenantdave

HI guys, new to the bike scene. Purchased a S40 for my first bike a month or two ago... any advice on how to make the bike sound louder and not like a lawn mower?

Cheers,

Buy a Harley??

Somebody with useful advice will be along shortly..

**Subike** · 29th November 2012, 20:19

Originally Posted by scumdog

Buy a Harley??

Somebody with useful advice will be along shortly..

he wants it to sound louder, not like a tractor!

**big single** · 20th January 2013, 11:34

Originally Posted by lieutenantdave

HI guys, new to the bike scene. Purchased a S40 for my first bike a month or two ago... any advice on how to make the bike sound louder and not like a lawn mower?

Cheers,

Sounds like a goldfish farting with the stock exhaust. I got one made for mine at Custom Chambers, sounds way better. It's less restrictive and the motor breathes better. I did check the idle mixture afterwards with an analyser from work, actually found I had to lean it off a bit, haven't touched other carb settings.
Cheers

Sent from my HTC Desire S using Tapatalk 2

**lieutenantdave** · 30th January 2013, 10:53

Originally Posted by big single

Sounds like a goldfish farting with the stock exhaust. I got one made for mine at Custom Chambers, sounds way better. It's less restrictive and the motor breathes better. I did check the idle mixture afterwards with an analyser from work, actually found I had to lean it off a bit, haven't touched other carb settings.
Cheers

Sent from my HTC Desire S using Tapatalk 2

cheers mate, roughly how much did it cost ya for a custom made one?

**big single** · 30th January 2013, 16:56

Originally Posted by lieutenantdave

cheers mate, roughly how much did it cost ya for a custom made one?

Cost $475... All I did was ring up, tell him I wanted him to make me one (he has a pattern for them), 3 days later rode over when he let me know it was ready and he fitted it, couriered my old one back. Easy as.

Looks like this

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**Monkfish** · 1st February 2013, 08:48

Originally Posted by big single

Cost $475... All I did was ring up, tell him I wanted him to make me one (he has a pattern for them), 3 days later rode over when he let me know it was ready and he fitted it, couriered my old one back. Easy as.

Are you happy with the Sound?
Does your bike backfire when backing off of the throttle?

**James Deuce** · 1st February 2013, 08:53

Ignore them.

Pick one of the four kits: http://www.rycamotors.com/

**big single** · 1st February 2013, 20:20

Originally Posted by Monkfish

Are you happy with the Sound?
Does your bike backfire when backing off of the throttle?

Yeah, I'm happy with the sound - its loud enough but not offensive, has passed a WOF with it. Those that have heard it say it sounds nice too. It's made the bike much more fun to ride because it now sounds like one.
Does it backfire? - do bears poo in the forest?

Yep, it can still backfire at times when you throttle of, but not all the time. You can avoid them a fair amount of time with practice, and leaning the idle mixture helped a lot. Throttle off from 100 km/h and the overrun has an awesome twitter... brings back memories...

**Monkfish** · 1st March 2013, 12:17

I have heard of people using harley mufflers on the stock headder.
This true? has anyone done this? if so did they get a good result?

**lieutenantdave** · 11th March 2013, 12:10

Originally Posted by big single

Cost $475... All I did was ring up, tell him I wanted him to make me one (he has a pattern for them), 3 days later rode over when he let me know it was ready and he fitted it, couriered my old one back. Easy as.

Looks like this

Sent from my HTC Desire S using Tapatalk 2

did you have to play around with the carbs at all?

**big single** · 13th March 2013, 19:55

Originally Posted by lieutenantdave

did you have to play around with the carbs at all?

Not a great deal. There is a lot of info on the net that tells how to adjust the slow running mixture - it's a fuel bleed, and there's a screw on the side of the carb that has a brass plug blanking it. Its easy to remove that if you need to, see here http://suzukisavage.com/cgi-bin/YaBB.pl?num=1221818822
The info available suggests that the mixture is lean, but I found mine was rich at idle - but that's with the new exhaust fitted (it may be different with the standard exhaust) and I had to screw the bleed in to lean it off. I borrowed a 5 gas auto analyser from work to check the mixture, it was running around 7.5% to 8% CO and I reduced it to just below 4% (it's 2 full turns in from it's initial position now), also with a little tweak on the idle speed screw too. But net effect was the idle improved and the backfiring also reduced in severity. I never checked the mixture using the analyser when I had the stock Suzuki exhaust on though.
At open road speeds, when grabbing a handful of throttle there's no lag in response and there's no feeling of surge or pick up if you just roll back the throttle a bit - so for my riding style it's fine with only making that idle mixture change.
Poodling around at 50 km/h isn't that good, but never was even with the stock pipe, I feel it surges a bit and I think that's just the CV carb being affected at slow running with the irregularities that a big single has. Fortunately most of my riding doesn't involve much of that, I ride mostly for fun when it's fine and because I live out in the wops I'm on rural roads straight out of my driveway - so straight to open road speeds once warmed up.

**Monkfish** · 14th March 2013, 13:49

Originally Posted by big single

Not a great deal. There is a lot of info on the net that tells how to adjust the slow running mixture - it's a fuel bleed, and there's a screw on the side of the carb that has a brass plug blanking it. Its easy to remove that if you need to, see here http://suzukisavage.com/cgi-bin/YaBB.pl?num=1221818822
The info available suggests that the mixture is lean, but I found mine was rich at idle - but that's with the new exhaust fitted (it may be different with the standard exhaust) and I had to screw the bleed in to lean it off. I borrowed a 5 gas auto analyser from work to check the mixture, it was running around 7.5% to 8% CO and I reduced it to just below 4% (it's 2 full turns in from it's initial position now), also with a little tweak on the idle speed screw too. But net effect was the idle improved and the backfiring also reduced in severity. I never checked the mixture using the analyser when I had the stock Suzuki exhaust on though.
At open road speeds, when grabbing a handful of throttle there's no lag in response and there's no feeling of surge or pick up if you just roll back the throttle a bit - so for my riding style it's fine with only making that idle mixture change.
Poodling around at 50 km/h isn't that good, but never was even with the stock pipe, I feel it surges a bit and I think that's just the CV carb being affected at slow running with the irregularities that a big single has. Fortunately most of my riding doesn't involve much of that, I ride mostly for fun when it's fine and because I live out in the wops I'm on rural roads straight out of my driveway - so straight to open road speeds once warmed up.

Is your new pipe baffeld? if so is it removable?

**big single** · 14th March 2013, 16:58

Originally Posted by Monkfish

Is your new pipe baffeld? if so is it removable?

Yep, sure is, and it's removable. Peter, at Custom Chambers, told me when I got it that he could put other sized baffles in to change the sound a bit if I wanted - but I was quite happy with it as made.