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SuzukiSavage.com
/cgi-bin/YaBB.pl General Category >> Rubber Side Down! >> What needs to be done with a muffler swap? /cgi-bin/YaBB.pl?num=1365297035 Message started by glencross96 on 04/06/13 at 18:10:35 |
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Title: What needs to be done with a muffler swap? Post by glencross96 on 04/06/13 at 18:10:35 I am really wanting to swap my muffler with a harley dyna like many here have. I'm confident I could do the actual swap (even though I'm new to motorcycles and mechanical work). But what I'm worried about is all this talk of having to rejett and tune the carburetor. I'm not exactly sure what is needed to do this or if I'll be able to do it. I would just like to know what all is needed to be done if I swap my muffler and what rejetting actually is. Sorry for the wall of text. Thank you for your time! *year 2000, with no modifications, completely stock. |
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Title: Re: What needs to be done with a muffler swap? Post by Serowbot on 04/06/13 at 18:20:45 Read here... ;)... (a #150/50 with a 2/3 spacer seems to be generally accepted, if you're not too into fiddling)... Harley muffler guide... (http://suzukisavage.com/cgi-bin/YaBB.pl?num=1298689417) |
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Title: Re: What needs to be done with a muffler swap? Post by glencross96 on 04/06/13 at 18:34:11 Thank you for the link to that guide! That will help a lot! But I'm still a little confused as to what " 150/50# main/pilot and 2/3 thickness spacer" means. Is that the rejetting? I'm very new to this. Could you give me a quick explanation as to what that means? |
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Title: Re: What needs to be done with a muffler swap? Post by Serowbot on 04/06/13 at 18:38:56 Lesson two... tuning... ;D... (BTW,.. yes, changing jets and slide needle position is tuning)... It's really very easy... just a bit intimidating when you're trying something new... You can do it, easy... ;)... Serowbot's carb tuning tips for beginners... (http://suzukisavage.com/cgi-bin/YaBB.pl?num=1309246277) I'm so prepared... ;D ;D ;D... |
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Title: Re: What needs to be done with a muffler swap? Post by glencross96 on 04/06/13 at 18:56:41 Thank you very much! This will really help! |
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Title: Re: What needs to be done with a muffler swap? Post by rfw2003 on 04/06/13 at 19:16:45 3239303B36273A26266C63550 wrote:
glencross96 You will find that in the Tech section of the forums there is a sticky post called the Table of Contents. It has links to various posts that covers alot of the main issues and fixit's that are common to the savage/s40 it also covers alot of the basic upgrade stuff to our beloved Savage as well. R.F. |
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Title: Re: What needs to be done with a muffler swap? Post by glencross96 on 04/06/13 at 19:30:42 2A3E2F6A68686B580 wrote:
glencross96 You will find that in the Tech section of the forums there is a sticky post called the Table of Contents. It has links to various posts that covers alot of the main issues and fixit's that are common to the savage/s40 it also covers alot of the basic upgrade stuff to our beloved Savage as well. R.F.[/quote] Oh! Whoops! I'll be sure to check that out next time! Thanks! |
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Title: Re: What needs to be done with a muffler swap? Post by justin_o_guy2 on 04/07/13 at 09:27:31 Its cool,, IDK about the others, but I like to see when someone is starting in on a mod. Keep us up on it, Look for T-Bolt clamps |
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Title: Re: What needs to be done with a muffler swap? Post by anikun07 on 04/09/13 at 16:49:25 Could someone clarify what jets I would most likely need? I've read through the re-jetting and HD muffler guides. I'm planning on ordering a pair of HD Dyna mufflers off eBay and wanted to plan which jets I would need to go with it. I've read Serowbot's Stock Carb. Jets list. In case my info doesn't say, it's for a '97. As far as I know everything is stock. So I was planning on ordering a #150 and 152.5 main jet because I don't know what I'll need. I don't know that we'll ever be driving it above an elevation of 1000' (Gotta love the flat midwest). And I wanted to make sure that I need a "Large Round" main jet. I've small round and hex jets listed too. I was planning on ordering Mikuni jets for the main and the eBay seller that I was looking at only has Keihin pilot jets. Are those compatible with the stock Mikuni carb.? I will also probably just buy a #4 nylon washer for the needle jet(?) too. |
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Title: Re: What needs to be done with a muffler swap? Post by Serowbot on 04/09/13 at 18:10:58 Anik,... just to start, and to make this easy... Just get a #152.5 large round Mikuni jet... put it in,.. and see how it runs... That may be just fine... If it ain't,.. then consider the spacer mod... and if needed some further jetting... ... but, if you aren't a fiddler... just try the #152.5... ;)... Some of us, are just meticulously anal, about jetting, and want perfection... ...and that's really a bit of a fools errand anyway... ;D... |
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Title: Re: What needs to be done with a muffler swap? Post by anikun07 on 04/09/13 at 18:29:03 No worries about the pilot jet? |
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Title: Re: What needs to be done with a muffler swap? Post by Serowbot on 04/09/13 at 18:30:27 Naaa... EDIT... sorry, that was curt... If you drill out brass plug over the idle mix screw... you can set it for best idle... if you end up needing to be more than 3 turns out from closed... then, you need a bigger pilot.. .. but,.. put in the main,.. and see how it goes... jetting is best done incrementally.. observe the results of each change and do more if needed... Especially for someone just learning... ;)... |
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Title: Re: What needs to be done with a muffler swap? Post by 87 savage on 04/10/13 at 02:06:14 46494E4C52491710270 wrote:
Hi Anikun, I just did the dyna muffler swap. Serowbot's Muffler guide was very helpful. I ended up going with a 3-1/2" 10 degree bend adapter pipe my local muffler shop made for me for $15. It just fit alot better with the adapter and I didn,t have to make a crush band. Just curious, why are you shopping for a PAIR of Dyna mufflers? |
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Title: Re: What needs to be done with a muffler swap? Post by ToesNose on 04/10/13 at 06:07:29 333C3B39273C6265520 wrote:
Make sure they aren't the pair of no baffle ones that have been up on Ebay, unless LOUD is what you are looking for :o |
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Title: Re: What needs to be done with a muffler swap? Post by anikun07 on 04/10/13 at 07:23:07 A pair was the cheapest listing. Then I can have an extra or re-list it. I don't know if it has a baffle or not, but I'll find out. Is the bafffle just part of the opening or is it a component inside the length of the pipe? |
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Title: Re: What needs to be done with a muffler swap? Post by glencross96 on 04/10/13 at 08:41:33 I'm at 900ft elevation. What jetts should I use with the dyna muffler swap? Since I'm at lower elevation than the guy in the tutorial, would I need smaller jets? Or could the stock ones work with the muffler swap? |
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Title: Re: What needs to be done with a muffler swap? Post by gdrseeker on 04/10/13 at 17:02:01 Say you ran the same exact bike with the same exact muffle and same exact jets at 900 feet then at 4000 feet. Let’s say originally it was running perfect at say 2500 feet. Now at 900 feet the bike would run leaner (gas mixing with more air) and at 4000 feet it would be richer (gas mixing with less air). You may need a bigger jet at lower elevation or just an adjustment on the mix screw wider open but not past 3 turns. (Depending on how it reacts) You may need a smaller jet at higher elevation or an adjustment on the mix screw all the way closed. (Depending on how it reacts) |
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Title: Re: What needs to be done with a muffler swap? Post by glencross96 on 04/10/13 at 19:01:55 Wow! The leaner/richer thing just clicked in my head all of a sudden! It makes a lot more sense now thanks! I'm going to start with just doing the muffler swap and mess with the idle mix screw. Then I'll get bigger jets if I need to. Thanks! |
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Title: Re: What needs to be done with a muffler swap? Post by justin_o_guy2 on 04/11/13 at 07:15:55 Its a neat feeling when that lite bulbs comes on,,These carb guys have sure helped me, tho I know I only have a 60 or 70% grasp of what they know, its still a lot better than when I got here. |
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Title: Re: What needs to be done with a muffler swap? Post by glencross96 on 04/14/13 at 11:01:36 What are your opinions on the dyna muffler with catalytic converters? They are the cheapest ones I've found. |
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Title: Re: What needs to be done with a muffler swap? Post by houstonbofh on 04/14/13 at 20:26:48 Aida has one on her bike. Sound good, runs well, and if I follow her at night, it has a cool orange glow. :) |
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Title: Re: What needs to be done with a muffler swap? Post by Serowbot on 04/14/13 at 22:31:54 5358515A57465B47470D02340 wrote:
Harley Cat's are not chemical or filtering,.. they just have a metal heat coil at the inlet... this coil will glow hot and burn off excess pollutants... it isn't restrictive, and won't do anything bad,.. except,... that extra heat will blue the muffler in that spot... So,.. if blue bothers you,... you don't want one...(this won't be an indicator of rich or lean, or anything,... it will just go harmlessly blue)... ...(pipe color is a poor indicator of anything, anyway).... ;)... |
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