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Muffler Question (Read 6 times)

Steeler_Mike Ex Member	Muffler Question 08/18/06 at 14:22:54 I got a HD muffler for my 2006 S40 - I am putting it on tomorrow. I have heard I need to re-jet the carb is this a MUST??? I was told it was and was not?!?! HELP!
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Savage_Rob

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Re: Muffler Question
Reply #1 - 08/18/06 at 14:39:41

Read about the white spacer mod and rejetting in the Tech Ref forum but please read the posting guidelines there before posting anything. In general, the LS650 is quite lean from the factory and increasing the airflow by changing to a freer-flowing exhaust will make it leaner. You'll have to compensate. Probably 40% of this site is filled with posts discussing this. A few searches on key words should give you more information that you need. Definitely read the Tech Ref forum though.

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Dynobob

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Re: Muffler Question
Reply #2 - 08/18/06 at 18:16:06

If it's a stock Harley muffler, not a Screamin Eagle, you might be able to get by without a rejet. Your bike will be running very lean and will turn the exhaust blue from the extra heat. If you want a good running bike that lasts a long time, I would suggest you rejet. Trust me, there is a huge difference in the performance. Starting and cold bloodedness should improve too.

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LANCER Serious Thumper Alliance Member Offline Savage Beast Performance Parts Posts: 10875 Oklahoma Gender:	Re: Muffler Question Reply #3 - 08/18/06 at 18:26:20 De-de-de-definitely rejet.
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babbalou Serious Thumper Offline Posts: 814 Lewisville, Texas Gender:	Re: Muffler Question Reply #4 - 08/18/06 at 18:29:22 Even stock the bike benefits from rejetting. It's worth it once you're done.
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georgekathe Ex Member	Re: Muffler Question Reply #5 - 08/18/06 at 19:37:39 No offense to Dynobob - I have a softail muffler on mine (just fitted - also not too long ago fitted slot in K & N air filter), so it is stock. No popping, even after fitting filter. Put on muffler - mucho noise but mucho popping - really annoying. Definately in process of rejet!! George, loving working on his bike more every day!
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SavageDude Serious Thumper Alliance Member Offline Posts: 561 OC_California Gender:	Re: Muffler Question Reply #6 - 08/18/06 at 20:03:37 Rejetting--An absolute must do mod! Then your bike will really be a Savage.
Back to top	2005 S40, debadged, Tkat FB, saddle bags, sissy bar, HD Sporter muff, Fly screen, white spacer mod, 150 main jet.....and sssslowly upgrading IP Logged

theikeman Senior Member Offline Live each day as if it were your last ... Posts: 344 Gibsonton in South Florida Gender:	Re: Muffler Question Reply #7 - 08/18/06 at 22:23:08 If the Muffler has the factory baffle and you have a stock airfilter you should not have to rejet. If the baffle is drilled out and/or you have an aftermarket filter - you MUST rejet to keep from burning the valves. Just my 2 cents Ike
Back to top	1996 Just bought it, Maroon, so much to do, so little time ... Future adds: Iridium, dyna muff, air filter mod, fork brace, 1 piece seat, carb mod and more IP Logged

LANCER

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Re: Muffler Question
Reply #8 - 08/18/06 at 22:33:13

Some may be able to get by without rejetting but most will require it. It all depends on the engine involved ... like most things, everyone is a little different. Even the factory settings can vary a bit.

theikeman wrote on 12/31/69 at 16:00:08:

If the Muffler has the factory baffle and you have a stock airfilter you should not have to rejet. If the baffle is drilled out and/or you have an aftermarket filter - you MUST rejet to keep from burning the valves.
Just my 2 cents

Ike

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smokey02 Full Member Offline Time flies like an arrow, fruit flies like bananas Posts: 233 Alta Loma, California Gender:	Re: Muffler Question Reply #9 - 08/20/06 at 19:20:43 I put a HD turnout on my 96. I have stock air filter so I just adjusted the idle screw out a bit.
Back to top	Maroon 96, HD turnout, Iridium, TKat brace, Big Crank, seat lift, Narva +50 w/ yellow filter in a XV920 9 IP Logged

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