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Message started by janeforbes on 09/11/06 at 09:42:20

Title: Supertrapp muffler
Post by janeforbes on 09/11/06 at 09:42:20

I've just ordered a Supertrapp muffler for my 1995 Savage. Any information on installation the might help me? Sure hope it's easy.

Title: Re: Supertrapp muffler
Post by Max_Morley on 09/11/06 at 12:31:05

Be sure to have the gasket that goes between the head and exhaust pipe on hand as you will need to loosen the exhaust pipe to align the muffler. Max

Title: Re: Supertrapp muffler
Post by babbalou on 09/11/06 at 17:02:17

Also that fiberous bushing at the end off the pipe, about 1 1/2" long has to come off first or it doesn't slide on far enough for the holes & bolts to align, at least on mine. My SuperTrapp was touching the axle bolt after tightening it all up, so I loosened it & turned it slightly outward. Otherwise, a piece of cake. Sounds good & runs good.

Title: Re: Supertrapp muffler
Post by Dynobob on 09/11/06 at 20:03:49

I had to cut some metal off the end of my header pipe until the bolt hole on the muffler lined up with the bracket. No gasket between the muffler and header. I put some high temperature Permatex silicone on it and it seals well. I would suggest replacing your header to cylinder gasket at the time of the muffler swap too.

Title: Re: Supertrapp muffler
Post by barb36jack31 on 09/13/06 at 12:23:53

Put a SuperTrapp on my 05 S-40 recently and it is great! Recommend you pull the entire exhaust system. This makes it easier to get the old muffler off. Also you can clean up the header/cylinder junction so the new gasket will seat properly.

You are going to be very happy with this mod.

Jack H.

Title: Re: Supertrapp muffler
Post by janeforbes on 09/17/06 at 13:02:08

We just installed the Supertrapp. Took it out for its first ride today. Sounds great, runs fine, but noticed that it has already turned a gold/ blue color at the end that attaches to the pipe. We installed 4 of the discs and the end cap. The end cap also turned gold. What does this mean? Whan can I do?

Thanks!

Title: Re: Supertrapp muffler
Post by Dynobob on 09/17/06 at 17:11:25

janeforbes wrote:

The end cap also turned gold. What does this mean? Whan can I do?

My endcap is gold and my bike is jetted properly and on the rich side. Gold is fine. Blue is lean and what you should be concerned about.

Did you do any jetting? You do realize less disks is less sound and less performance? Your jetting (whatever it is) will be richer with less disks.

Title: Re: Supertrapp muffler
Post by Dynobob on 09/17/06 at 17:13:35

Be sure to clean any grease, oil, and fingerprints off the exhaust with some solvent. I wax mine with Maguiars Car Cleaner Wax. I have no coloring other than the endcap.

Title: Re: Supertrapp muffler
Post by babbalou on 09/17/06 at 18:22:07

Mine turned gold the first time I rode it, along with the end cap. Starting to turn blue at the front of the muffler. I know it's a little lean in the mid-range, cause there's a little bark between upshifts at mid-throttle. I'll get around to tweaking that next month. Using 4 discs here too. More & I needed earplugs.

Title: Re: Supertrapp muffler
Post by janeforbes on 09/18/06 at 05:52:35

Thanks everyone for your answers.
Babbalou- that is exactly what mine is doing. Bark is the perfect description. Tweaking the fuel mixture is not something I know how to do, would have to take it to a shop. Is it crucial to have that done? What happens if i leave it alone? Would it keep getting more discolored?
Hurt the bike? You're right, 4 discs are plenty.

Thanks again

Title: Re: Supertrapp muffler
Post by babbalou on 09/18/06 at 20:33:18

janeforbes wrote:

I heard a rule of thumb that if it's lean enough to damage the engine, it'll run badly enough to let you know. Probably different opinions on that but I think it's close. If the carb has factory jetting, it's really lean now with the SuperTrapp, even w/4 discs. It will run cooler & make more power with rejetting.

Title: Re: Supertrapp muffler
Post by janeforbes on 09/24/06 at 16:12:39

Took the bike for a 100 mile ride today. The muffler is turning bluer and starting to spread further down the muffler. The end cap is not blue, just a darker gold. Seem to still run OK. I think i need to take it in to a shop to get checked out, this is not something i can do. Is it an expensive job to be rejetted?

Thanks for everyones input!

Title: Re: Supertrapp muffler
Post by mickthelimey on 09/25/06 at 00:07:51

I know nothing about supertrapp mufflers ???,
the way you guys discribe it you can remove baffle plates until you get the desired tone? is that right? if that is true where can I get one,and how much do they cost? Mick.

Title: Re: Supertrapp muffler
Post by janeforbes on 09/25/06 at 05:32:09

I got my Supertrapp from Bike Bandit online.
Cost $236.
Just talked with Supertrapp customer service and they suggested that 6 discs is recommended. Also to check the color on the plugs and adust the discs accordingly.
dark and sooty too rich add discs
ashy color too lean remove discs.

What do you think?

thanks again

Title: Re: Supertrapp muffler
Post by Dynobob on 09/25/06 at 12:35:37

janeforbes wrote:

Just talked with Supertrapp customer service and they suggested that 6 discs is recommended. Also to check the color on the plugs and adust the discs accordingly.
dark and sooty too rich add discs
ashy color too lean remove discs.

I don't agree. You should have your carb rejetted. Run with the disks that came with it (7?), install a 155 main jet, and cut the white spacer over your needle to 1/2 thickness. Your bike will run great and the exhaust won't change color much. I run a 157.5 (one size larger than 155) and my bike runs great.

Fixing your lean jetting by removing disks isn't the best way to go about it.

If you need help shaving a white spacer (for the shop to install), give me a shout.

Title: Re: Supertrapp muffler
Post by janeforbes on 09/25/06 at 14:04:48

Thanks, now i am really confused.
I installed 4 discs. The Supertrapp instructions say:
A stock engine with stock jetting will not benefit from using more than 6-8 discs. using more than 8 discs will require richer jetting to prevent a lean condition.

I have a stock engine. Does this agree with what you said. i will need to go to a shop and I would like to sound like i know what i am talking about.

Thanks again-
jane

Title: Re: Supertrapp muffler
Post by babbalou on 09/25/06 at 17:15:52

I'm running 4 discs but I live in a really quiet neighborhood & my commute is a slow stop & go with some windows down. I've got the pilot screw out/counterclockwise 1 1/2 turns, spacer 1/2 thickness & I'm going back to a 150 main jet tomorrow. I have a 152.5 main jet in it now, which makes slightly more power in the higher revs range but my gas mileage/range isn't very good so I'm going back to the 150. That's probably a fairly close starting point at sea level. I do get a slight "bark" between upshifts until about 20 minutes into a ride, when it's fully warm. I eliminated it going out 2 turns on the pilot screw but it didn't idle as smooth so I went back to 1 1/2.

Title: Re: Supertrapp muffler
Post by Dynobob on 09/25/06 at 20:37:26

janeforbes wrote:

Jane, the Supertrapp is a performance modification. If you run it with only a few disks, you are gaining nothing. There's no point to that. With a rejet and no other modifications to the engine, your Savage will run like a completely different bike - more torque, more horsepower, more sound. It's not overly loud but does make some noise.

The Savage is very lean from the factory and could benefit from a rejet even if totally stock. The bike will run smoother, start easier, and perform way better on the highway after rejetting.

Try yours with the stock number of disks and see if you can tolerate the increased noise. It won't hurt to ride it with stock jetting for a short time. If it's something you can live with, plan to rejet. It will make a big difference in the way your Suzuki performs. Gas mileage will still be good (I probably get 55 mpg when not twisting the throttle heavily). If you want fewer disks to lower the sound level, you would still benefit from a rejet.

You lowered the backpressure when you added the Supertrapp. This makes the bike dangerously lean and will blue your pipes.

Decide how many disks you can tolerate first (I recommend what it shipped with) - then rejet accordingly. I can tell you what jetting works extremely well with the original number of disks.

Title: Re: Supertrapp muffler
Post by janeforbes on 10/02/06 at 04:40:10

Dynobob-- thank you so much for all your help and great info!!

I took the bike in to get rejetted and now it runs beautifully. Smoother and more power. The mechanic put in 6 discs, I had 4. Just the sound I wanted too.

This site and everyones knowledge is the best! You are my hero Dynobob.

Thanks,

Jane

Title: Re: Supertrapp muffler
Post by Dynobob on 10/02/06 at 11:54:31

janeforbes wrote:

I took the bike in to get rejetted and now it runs beautifully. Smoother and more power. The mechanic put in 6 discs, I had 4. Just the sound I wanted too.

Excellent! Glad you got your Savage running nicely. You'll notice a big improvement on the highway. I did notice mine runs smoother too and starts easier. Have fun ;D