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Muffler Mod (Read 145 times)

Krowl

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Posts: 20
Pennsylvania
Gender: male

Muffler Mod
05/24/10 at 05:45:43

So I tried to be cheap and wanted a different sound without spending any money. I drilled 4 13/64 inch holes in the back muffler to give it a little voice. Now she pops and backfires a little when cruising and I let off the throttle. Everything was fine before this. Any suggestions as to why now?!
I already did the 1/2 spacer mod before all of this. I'm I running to rich now?! Any help would be appreciated! Lips Sealed

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verslagen1 YaBB Moderator ModSquad Offline Where there's a will, I want to be in it. Posts: 28884 L.A. California Gender:	Re: Muffler Mod Reply #1 - 05/24/10 at 07:06:23 how does your sparky look? how much soot out the back? do you have leaks at the header or muff?
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Krowl YaBB Newbies Offline Posts: 20 Pennsylvania Gender:	Re: Muffler Mod Reply #2 - 05/24/10 at 09:55:38 New spark plug and there is no soot coming from the back. I just wonder why 4 holes in the muffler would cause this problem.
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bill67 Serious Thumper Offline old tired Posts: 8517 genoa city wisconsin Gender:	Re: Muffler Mod Reply #3 - 05/24/10 at 10:09:05 It wouldn't make you run richer,the stock pipe made the backfire quieter.
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thumperclone Serious Thumper Alliance Member Offline PGR rider riding with respect Posts: 6046 Grand Junction Colorado Gender:	Re: Muffler Mod Reply #4 - 05/24/10 at 15:54:47 more holes= less back pressure = leaner have you looked at your new plug since drillin? your electrode color will tell ya if your lean(my bet) or rich..then go to tech section and look up basic carb tuning(thanks to lancer!)
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Routy Serious Thumper Offline SuzukiSavage.com Rocks! Posts: 2280 Winston Oregon Gender:	Re: Muffler Mod Reply #5 - 05/24/10 at 18:45:31 Drilling 8 holes in mine never changed much, except the exhaust is a little louder, and the backfiring is maybe a touch louder too. Mine always did backfire on decelleration,.....I consider it kinda normal.
Back to top	Rich '07 S40 Blvd stocker, except drilled OEM exhaust and white spacer mod...1/2 (.055) IP Logged

Rogue_Cheddar Serious Thumper Offline Hang up the phone and drive! Posts: 725 Haverhill, Massachusetts Gender:	Re: Muffler Mod Reply #6 - 05/24/10 at 18:54:22 The backfire saved my life once, makes a dandy deer repellant!
Back to top	'95 Red Savage. Oring grips and pegs, 30" Fishtail muffler,152.5 main, 1/3 spacer mod ,seat lift, Verslagy. IP Logged

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