SuzukiSavage.com - delkevic mufflers

justin_o_guy2

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Re: delkevic mufflers
Reply #15 - 01/11/17 at 11:37:56

Wouldn't it just sukk to gut the new pipe and discover that getting the jetting to work out is just not going to work?
Maybe it's gonna be obnoxiously loud,,
A straight piece of pipe, same length and diameter as the inside of the muffler and you can mock it up, see if you can tune it, see if your neighbors shoot at you,
Yeah, it's time and money,, just an idea.
Maybe slap a gutted Dyna on. The guy I got mine from had a bucket of them. The only one that had a baffle was twenty bucks.
The others were five bucks..
Cheap, easy, not Perfect testbed , but should get you in the ballpark.

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hotrod Senior Member Offline SuzukiSavage.com Rocks! Posts: 326 NC Gender:	Re: delkevic mufflers Reply #16 - 01/11/17 at 12:17:25 Mufflers come and go. Different baffle , length, etc. I think any gain in power will come more from a larger dia. header pipe, which can't be found, by itself, anywhere that I know of.
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Ruttly Serious Thumper Offline Thumpers Rule Posts: 5112 Manteca , CA Gender:	Re: delkevic mufflers Reply #17 - 01/11/17 at 12:35:37 Mac Exhaust has 2 different size headers , think it's 1.5" & 1.75"
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LANCER Serious Thumper Alliance Member Online Savage Beast Performance Parts Posts: 10668 Oklahoma Gender:	Re: delkevic mufflers Reply #18 - 01/11/17 at 14:31:26 Ruttly wrote on 01/11/17 at 12:35:37: Mac Exhaust has 2 different size headers , think it's 1.5" & 1.75" I understood that to be ID on those numbers.
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Bubba Serious Thumper Offline SuzukiSavage.com Rocks! Posts: 956 Denver, CO Gender:	Re: delkevic mufflers Reply #19 - 01/12/17 at 10:54:21 Hey lancer...did you ever get the MAC you won installed? Would love to hear what it sounds like.
Back to top	'06 lt Blue, Dyna Power pipe, air screw 2 1/4 turns, 52.5 pilot w/ bleed holes, 150 Main, 2/3 spacer, Pirelli MT66 tires, Raptor petcock, 412-4006 Progressive shocks IP Logged

JLC

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Re: delkevic mufflers
Reply #20 - 01/14/17 at 08:53:40

I installed the Delkevic short/slash cut muffler yesterday. With the link pipe, it is about the same length as the original muffler, but much lighter. This morning I tested it. Much more popping from the exhaust than before, so I set upon removing the brass carburetor plug to adjust the air/fuel mixture.

I followed instruction from this forum: Drill pilot hole with a 3/32 bit, limit depth of drilling to 1/8" - 3/16". I had no luck pulling the plug out with a screw, and I could not find my dent puller, so I came up with a third method: I used a "speed out" (screw extractor) bit with an adapter on a 1/4" ratchet, and the brass pug came out real easy!

I set the carburetor using my newly installed tachometer, and the idle is around 1100 rpm. I did not have to touch the speed idle screw. No leaks anywhere, and the exhaust sounds great, but it is LOUD.

I did not ride the bike out of the workshop yet, but the engine seems more responsive. The muffler manufacturer states there will be an increase in power. I will give my "seat of the pants dynamometer" results later on!

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JLC Senior Member Offline SuzukiSavage.com Rocks! Posts: 262 Black Forest, Colorado Gender:	Re: delkevic mufflers Reply #21 - 01/15/17 at 11:37:16 A short video (using my old Nikon 5000 camera). The S40 is stock except for the muffler. The sound at idle is good, distorted when I rev up the bike. I'll make another video with better sound when I find the time! https://www.youtube.com/watch?v=j2miCmd3kio&feature=youtu.be
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Bubba Serious Thumper Offline SuzukiSavage.com Rocks! Posts: 956 Denver, CO Gender:	Re: delkevic mufflers Reply #22 - 01/17/17 at 12:33:16 That sounds amazing! Is that with or without the baffle?
Back to top	'06 lt Blue, Dyna Power pipe, air screw 2 1/4 turns, 52.5 pilot w/ bleed holes, 150 Main, 2/3 spacer, Pirelli MT66 tires, Raptor petcock, 412-4006 Progressive shocks IP Logged

JLC Senior Member Offline SuzukiSavage.com Rocks! Posts: 262 Black Forest, Colorado Gender:	Re: delkevic mufflers Reply #23 - 01/17/17 at 12:35:11 That's with the baffle in place.
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hotrod Senior Member Offline SuzukiSavage.com Rocks! Posts: 326 NC Gender:	Re: delkevic mufflers Reply #24 - 01/17/17 at 13:31:05 Too loud.
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batman Serious Thumper Offline SuzukiSavage.com Rocks! Posts: 3806 osceola new york Gender:	Re: delkevic mufflers Reply #25 - 01/17/17 at 20:13:13 It's nice that you have a tac but you need to set the idle speed down to set the idle screw so you can hear the engine speed change ,then reset your idle speed back up.
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JLC

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Re: delkevic mufflers
Reply #26 - 01/18/17 at 09:01:02

I just did what you said - yes, with the idle speed down, there is a lot more speeding up/down when adjusting the mixture screw, than doing it at 1000 rpm. On my bike, there is little range of adjustment between stalling one way or the other. The sweet spot is three turns out. I reset the idle at just over 1000 rpm.

Thanks for the tip, Batman!

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pam Junior Member Offline SuzukiSavage.com Rocks! Posts: 51 Ft. Mitchell, KY Gender:	Re: delkevic mufflers Reply #27 - 01/18/17 at 13:56:30 that sounds so good..boy do I love the look of that pipe...DAVE DAVE DAVE... lol...help...hahahha I am really set on getting this muffler too....is it difficult to chamge from one to other muffler???? Do you have to adjust the idle on the bike etc after you change mufflers??
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verslagen1

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Re: delkevic mufflers
Reply #28 - 01/18/17 at 14:13:25

pam wrote on 01/18/17 at 13:56:30:

I am really set on getting this muffler too....is it difficult to chamge from one to other muffler????
Do you have to adjust the idle on the bike etc after you change mufflers??
Grin

some times the stocker can be hard to get off.
but the real trick is to want to keep it, then it fall off all on it's own.

yes you probably will have to adjust the idle, and the mixture and maybe rejet.

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JLC

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Re: delkevic mufflers
Reply #29 - 01/18/17 at 15:21:55

Pam,

I first tried to get the muffler off with the header in place, then quickly discovered it was much easier to take the whole assembly (header and muffler) off as one unit. As my bike is nearly new, nothing is rusted so I had little trouble taking things apart, except for the two bolts with Japanese Philips screw heads on the back of the heat shield (where the muffler meets the header). I needed to use my manual impact driver there, and I had to smack these bolt heads hard to get them to move!

Watch out for the header bolts. Easy to strip the threads in the cylinder head, apparently. I think the recommendation was 16 to 20 lbs torque.

I definitely had to adjust the fuel/air mix, which made it necessary to take off the carburetor brass plug in front of the air/fuel mixture screw. I don't think I'll have to rejet.

I like the sound too, but it is really loud, albeit not as much as most of the Harleys around here.

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