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01-04-2016, 05:01 PM,
#1
09 1100 exhaust baffle
I have a 2009 VStar 1100 classic. I have read about the 'sewing machine' sound and concur on my bike. Many have chosen to pull the aft most baffle tube for a throatier sound. I reviewed many YouTube videos and decided to give it a try. Although my bike has the stock exhaust, it is not coming apart like the videos say. I have cut the back plate on the upper pipe back end. The aft baffle tube is disconnected from the back plate but is held tight still. Any thoughts, hints, suggestions? Even though a tad unsightly, I can still drive it. Thanks.
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01-05-2016, 05:55 PM, (This post was last modified: 01-05-2016, 06:07 PM by pauli466.)
#2
RE: 09 1100 exhaust baffle
(01-04-2016, 05:01 PM)milhous58 Wrote: I have a 2009 VStar 1100 classic. I have read about the 'sewing machine' sound and concur on my bike. Many have chosen to pull the aft most baffle tube for a throatier sound. I reviewed many YouTube videos and decided to give it a try. Although my bike has the stock exhaust, it is not coming apart like the videos say. I have cut the back plate on the upper pipe back end. The aft baffle tube is disconnected from the back plate but is held tight still. Any thoughts, hints, suggestions? Even though a tad unsightly, I can still drive it. Thanks.
i got so aggravated trying cut the final pipe back farther in the muffler that i ended up wrapping the muffler with wet rags and using a torch to burn the pipe off, it worked pretty well too i got it cut about 6 to 8 inches back into muffler, went in with a long screw driver to break the buggers left buy the torching then shook em out of the muffler.. a little grill paint and all looks good. the only way you can see the burned off final pipe is with a flash light. the sound is perfect nice rumble around town but when you start hammering it's pretty darn loud, much louder than i expected. also my bike sounds nothing like a sewing machine after adjusting the valves to tightest clearance allowable and using amsoil 20/50. oh yeah the final exhaust pipe is welded on both ends.. the final baffle and the next one in also. if you break the pipe through that inner baffle you might need to rejet the carbs. if all else fails a machine shop will get that pipe out for very little money.
Lightbulb dumb bikers don't get to be old bikers
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04-06-2016, 10:04 PM,
#3
RE: 09 1100 exhaust baffle
Hey bud, ran into that same problem on my 2005. What I did was cut off the "cone" on the end right behind the welds. I like the slash cut look. The muffler has 3 chambers in it. I completely removed the rear one on the cone end. The sound is a little better, it no longer sounds like a toddler fart. But without a rejett the rear one is all I have took out. But fyi, if you go this route the other two chambers will slowly slide outwards just from the pressure of the engine. Since I intend to remove them after doing some other stuff I haven't worried about mine,they slide about a inch on 4 hr ride,I just tap them back in with my boot at stops. I plan on doing the same mod with the the exhaust I did on another Yamaha, by using a washer welded too a thumb screw. And fine tuning the back pressure to match the carb jets.
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04-07-2016, 08:17 PM,
#4
RE: 09 1100 exhaust baffle
(04-06-2016, 10:04 PM)ajclockga Wrote: Hey bud, ran into that same problem on my 2005. What I did was cut off the "cone" on the end right behind the welds. I like the slash cut look. The muffler has 3 chambers in it. I completely removed the rear one on the cone end. The sound is a little better, it no longer sounds like a toddler fart. But without a rejett the rear one is all I have took out. But fyi, if you go this route the other two chambers will slowly slide outwards just from the pressure of the engine. Since I intend to remove them after doing some other stuff I haven't worried about mine,they slide about a inch on 4 hr ride,I just tap them back in with my boot at stops. I plan on doing the same mod with the the exhaust I did on another Yamaha, by using a washer welded too a thumb screw. And fine tuning the back pressure to match the carb jets.
[Image: HwyexoODKRMGqwHBWHgnmjN-MMFhVpGpjhNU_jSd...33-h947-no] a look inside before I removed the remaining baffle....

[Image: m2DPors0j7yDTP-uzePJKWFaw06Y778HJxov_OMv...33-h947-no] View from end of exhaust with baffle still in

[Image: g_4VWn6gCAyBeeNYADXKSdCQyylPbydNheV8z1KS...33-h947-no]Baffle coming out.....

[Image: jY6vE2KCOpLvs5CwApQ-6cDUZgCmB9saOYASj9u5...33-h947-no]Baffle almost out.....

[Image: e2hiW2TyaUCbZ14UXW5Jj3lcI64xCrk_dzv4utqC...33-h947-no]Looking down pipe after baffle removed....notice the tab,it still has back pressure leave this one in.

[Image: QHm6wWsvlGM3EPpiS_im43ZHnQhSRkygmpLhkfeT...33-h947-no] After put back on...would have liked to have slash cut deeper but my pipe saw wouldnt allow any deeper cut...


https://youtu.be/zixg6kxL4OA video of it idling with baffles removed.


Now afterwards we went for a 20 mile ride,took it thru its paces.Uphills,flats,curves,etc. If anything there is more horsepower. Throttle response is actually better. So no re jetting needed. The pipes are not getting too hot. As far as sound it sounds pretty dam good. Its not obnoxious, idling is a deep throaty sound,and at 70 mph its not so loud you cant talk with the passenger.The down shift has a deep tone,no backfiring. Now the bike has the AIS system delete, as well as valves were adjusted this morning, and carb sync. But overall I like it. Sounds great,and no issues. Now after a few days I update on them again.
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