SuzukiSavage.com - Print Page

SuzukiSavage.com
/cgi-bin/YaBB.pl
General Category >> Rubber Side Down! >> Jetting Carb
/cgi-bin/YaBB.pl?num=1174086356

Message started by thehut on 03/16/07 at 16:05:56

Title: Jetting Carb
Post by thehut on 03/16/07 at 16:05:56

First of all I am new here. Just got my 2000 LS650 at the end of last season. I like it fine... All but the color ;D

Anyhooo.....

Just a quick one here. I am going to go and try and buy jets this weekend and would like to know if I should get 155 main and the 55 pilot. Sea level is +835 feet.

I am going to put on a sportser muffler on the same day I do the jets.

I will do the spacer mod also. Should I take it down to 1/2? Will I need to do it at all?

I have not done anything the the air filter. Want to do that in two weeks if I get the cash.

Anyhow if you need to know more let me know.

Have an oil leak I thought I fixed also (The Plug). But still leaking. Not sure what it is now. I will have to tear it back apart and see if I messed it up :o

Thanks!!

Title: Re: Jetting Carb
Post by LANCER on 03/16/07 at 17:26:46

I would suggest that you get both the #152.5 and #155 main jets, just to be sure. You may or may not need the #55 pilot but have it on hand just in case. Doing the half white spacer is a good start for the needle. Some of the others get a spare one to file and keep the original just in case they want to go back. The jets/spacer are cheap so the process is not painful.
Do not worry about the filter right now, as long as it is clean it will flow enough for now so just concentrate on doing the jetting/tuning correctly.

Title: Re: Jetting Carb
Post by thehut on 03/16/07 at 18:05:57

I was thinking on getting both jets. I will get the 55 pilot but not put it in first go around. I just read that it helps the backfire.

I will look around on the site for the tuning. Unless the idle mixture screw is the "tuning" part of it.

Thanks Lance!!

Title: Re: Jetting Carb
Post by thehut on 03/16/07 at 18:21:39

Oh here is a pic not that anyone cares ;D

http://www.tracyswilliams.com/ssLS650.JPG

Here is a link to the original pic also. Looks like the file was to large to show up good :P

http://www.tracyswilliams.com/ssLS650.JPG

Title: Re: Jetting Carb
Post by barry68v10 on 03/16/07 at 18:24:17

I can't see a pic, is it there?

Title: Re: Jetting Carb
Post by barry68v10 on 03/16/07 at 18:24:57

Oh, there it is, boy my puter is slow today >:(

Title: Re: Jetting Carb
Post by thehut on 03/16/07 at 18:30:14

I put a link to it also. I forgot to change the res on my canon rebel. Sorry. I will pull into photoshop next time.

Title: Re: Jetting Carb
Post by thehut on 03/16/07 at 18:32:29

Off to put struts on my wife car >:( Be back soon I hope.

Title: Re: Jetting Carb
Post by thehut on 03/16/07 at 21:49:32

Well that was fun. :o

Title: Re: Jetting Carb
Post by kf6kmx on 03/16/07 at 22:03:11

thehut wrote:

First of all I am new here. Just got my 2000 LS650 at the end of last season. I like it fine... All but the color ;D

Welcome to the wonderful world of the 650 thumper ;D I just got mine back in Sept.. only have about 600 miles on it now, most of that in the last two weeks. UNtil then between work and weather I wasnt getting a lot of riding time in... Now I am!

thehut wrote:

Just a quick one here. I am going to go and try and buy jets this weekend and would like to know if I should get 155 main and the 55 pilot. Sea level is +835 feet.

I doing a muffler mod to mine as well... THink I'm going to order an SE for it... right now I have a modified HD (Dyna i think) muffler I just mounted tonight... I have the factory jets in, but will be changing them either tomorrow before I go ride, or tomorrow evening after I get back and it cools back down. My local shop only had a 150 in stock... not real big, but for only $3 I grabbed it to try while I wait for the 155 to show up.. They couldnt find any refernce in their listing for the 152.5 for some reason.

thehut wrote:

Have an oil leak I thought I fixed also (The Plug). But still leaking. Not sure what it is now. I will have to tear it back apart and see if I messed it up :o

Havent had any leaks on mine yet from the plug.. I did find out that the bolts that go through (on an '06 anyway) the brake lever mount and the heat shield, go all the way through the casing and out the other side, and they WILL leak oil if you leave them loose while you have the heat shield off to take off the head pipe ::)

I think I have a new joke for Jeff Foxworthy...
"You might be a redneck if any part of your motorcycle says 'Pepsi' on it, and it ISNT a decal"... ( my muffler 'gasket' is made from 3 strips of a Pepsi can ;)

Title: Re: Jetting Carb
Post by verslagen1 on 03/16/07 at 22:14:02

or bud!

Title: Re: Jetting Carb
Post by justin_o_guy on 03/16/07 at 22:51:12

You might be a Rednekk if you hit the lottery & have a brick duplicate made of your trailer house.

Title: Re: Jetting Carb
Post by thehut on 03/17/07 at 12:44:14

Can I rejet before I do the exhaust? I have the jets but I will not get the exhaust until mid week.

From the looks of it the Main Jet is easy as pie. Well that is looking at the clymers book anyhow.

I went to ADFarrows to get the jets and they told me the ones they have would only fit a Harley. I kinda giggled and said whatever and left. Good thing I went to the local dealer first. Don't ask me why I went to both it is long story :P

Title: Re: Jetting Carb
Post by justin_o_guy on 03/17/07 at 13:05:45

I put a 150 main in a long time before I changed exhaust. It changed the backfire situation.

Title: Re: Jetting Carb
Post by thehut on 03/17/07 at 15:52:53

Well that was an EASY task!!!

I put the 152.5 jet in like Lancer suggested. I was not able to get the 55 pilot from the dealer. They said there were a few different kinds and I did not want to order two when I only need one. If someone has a pic on the pilot that I can take in and show them that would be great.

I screws came out easy also. I assume it is the screws for the 1/2 spacer mod that most people have issues with. I tried to take them out and they did not turn so I stopped until I am ready to do that.

It even starts faster then before!!

Now I just need my exhaust!!! I bet I end up going to the SE though. I like the sound they put out.

If it warms up I will take it out on the road to see how it runs with the new jet.

Oh did I say that was EASY ;D

Title: Re: Jetting Carb
Post by thehut on 03/17/07 at 19:20:20

Has anyone made their own custom pipes?

Title: Re: Jetting Carb
Post by klx650sm2002 on 03/18/07 at 03:25:50

Two, this on my KLX
http://i119.photobucket.com/albums/o147/klx650sm2002/brickwall.jpg
And this on my SR
http://i119.photobucket.com/albums/o147/klx650sm2002/fullpipe.jpg
Clive W :D

Title: Re: Jetting Carb
Post by LANCER on 03/18/07 at 04:03:51

thehut wrote:

Has anyone made their own custom pipes?

This is not as pretty as the one's KLX has done, but it is mine. I made the header out of 1.75" OD pipe and grafted on the core from a R&D muffler unit from Revolution Air co.

http://images1.snapfish.com/349744%3A93%7Ffp58%3Dot%3E232%3B%3D72%3A%3D788%3DXROQDF%3E2323%3A85%3A%3B6258ot1lsi

http://render2.snapfish.com/render2/is=Yup6aQQ%7C%3Dup6RKKt%3AxxrKUp7BHD7Kofrj%3DQofrj7t%3DzrRfDUX%3AeQaQxg%3Dr%3F87KR6xqpxQQQaxJQexJlGxv8uOc5xQQQoenanaaQaoqpfVtB%3F*KUp7BHSHqqy7XH6gXPoo%7CRup6lQQ%7C/of=50,590,442

I had this setup for a while but went back to the one above.

http://images1.snapfish.com/349744%3B48%7Ffp64%3Dot%3E232%3B%3D72%3A%3D788%3DXROQDF%3E2323%3A7284%3B9%3C%3Bot1lsi

Title: Re: Jetting Carb
Post by thehut on 03/18/07 at 08:13:20

http://render2.snapfish.com/render2/is=Yup6aQQ%7C%3Dup6RKKt%3AxxrKUp7BHD7Kofrj%3DQofrj7t%3DzrRfDUX%3AeQaQxg%3Dr%3F87KR6xqpxQQQaxJQexJlGxv8uOc5xQQQoenanaaQaoqpfVtB%3F*KUp7BHSHqqy7XH6gXPoo%7CRup6lQQ%7C/of=50,590,442

Lancer is that exhaust wrap? If so where did you get it?

Title: Re: Jetting Carb
Post by klx650sm2002 on 03/19/07 at 07:00:53

http://images1.snapfish.com/349744%3B48%7Ffp64%3Dot%3E232%3B%3D72%3A%3D788%3DXROQDF%3E2323%3A7284%3B9%3C%3Bot1lsi[/quote]
I like the one above best.
Clive W :D

Title: Re: Jetting Carb
Post by LANCER on 03/19/07 at 08:20:13

Hut, I got that particular wrap from an ebay ad and as it turned out the guy way in my local area. It was enough to do several pipes of this size.
I have some left over if you want it.
I just checked it and it will cover the header from the top on down to the bottom bend, but is not long enough to cover the last 6" at the bottom, just before the muffler attachment. The bottom portion could be covered by a heat shield.
Since it is a bit short, $10 will cover the wrap and shipping both.

KLX .... I am not surprised that you like that one.

Title: Re: Jetting Carb
Post by verslagen1 on 03/19/07 at 10:40:31

How much wrap does it take?

Title: Re: Jetting Carb
Post by LANCER on 03/19/07 at 11:13:04

verslagen1 wrote:

How much wrap does it take?

The roll was 50' to start and I did my header and someone did another.

There is 9.5' left over, so the previous wraps used 20' each. The overlap was obviously greater on those. trying to use the leftover may not look so good afterall.

Title: Re: Jetting Carb
Post by thehut on 03/19/07 at 11:22:24

Looks like this is getting off topic :P I do have some questions about a sportser muffler. I will make a new topic for that.

Back to the carb.... Doe anyone have a pic of what the pilot Jet looks like. I want to order one but I guess there are a couple different types. You can email it to me at tracy at theworldsweb.com

Thanks

Tracy (Male) ::)

Title: Re: Jetting Carb
Post by jd06s40 on 03/19/07 at 12:53:24

me to at jd_calbert@yahoo.com

Title: Re: Jetting Carb
Post by Greg_650 on 03/21/07 at 10:39:30

thehut wrote:

Oh here is a pic not that anyone cares ;D

Here is a link to the original pic also. Looks like the file was to large to show up good :P

I care, because you have the best looking tank design of them all...and it's green just like mine and Paladin's.

The Y2K Savages were the best ones ;D

Title: Re: Jetting Carb
Post by Grove_Tucky_650 on 03/21/07 at 16:22:12

Hey Greg is that white strip paint? I have not looked at it real close.

Title: Re: Jetting Carb
Post by Greg_650 on 03/22/07 at 08:59:53

thehut wrote:

Pilot Jets are on the outside ends..

http://i21.photobucket.com/albums/b277/gmdinusa/GMDLogo_1839.jpg

Title: Re: Jetting Carb
Post by Grove_Tucky_650 on 03/22/07 at 09:54:15

Greg_650 wrote:

Pilot Jets are on the outside ends..

http://i21.photobucket.com/albums/b277/gmdinusa/GMDLogo_1839.jpg

Cool. It looks like those are different. What one is on our bike Greg?

Title: Re: Jetting Carb
Post by Savage_Rob on 03/22/07 at 12:15:58

Grove_Tucky_650 wrote:

Cool. It looks like those are different. What one is on our bike Greg?

I don't remember but I know you can use either one. I think the stock pilot jet is normally the one without the holes in the sides.

Title: Re: Jetting Carb
Post by Greg_650 on 03/22/07 at 12:47:33

Grove_Tucky_650 wrote:

Cool. It looks like those are different. What one is on our bike Greg?

Easy process of deduction...remove yours and you'll know which one is stock :P

Rob is correct. The stock one is 47.5 and the other with the extra holes is a 50.

Title: Re: Jetting Carb
Post by Grove_Tucky_650 on 03/22/07 at 17:30:35

Greg_650 wrote:

Easy process of deduction...remove yours and you'll know which one is stock :P

Rob is correct. The stock one is 47.5 and the other with the extra holes is a 50.

Well I was not going to take it back out until I felt I had to or until I done the 1/2 spacer mod. I may do it Saturday since it is going to rain.

Title: Re: Jetting Carb
Post by Savage_Rob on 03/23/07 at 05:36:53

Grove_Tucky_650 wrote:

Well I was not going to take it back out until I felt I had to or until I done the 1/2 spacer mod. I may do it Saturday since it is going to rain.

If you've never taken it out before, that may be a good idea. Mine was so stuck it took an EZ-Out to remove it. Suffice it to say it was not reusable once I finally got it out but I just put a #55 in and it worked great.

Title: Re: Jetting Carb
Post by Greg_650 on 03/23/07 at 06:33:47

Savage_Rob wrote:

I just put a #55 in and it worked great.

Really? That's 3 sizes up...

Title: Re: Jetting Carb
Post by Savage_Rob on 03/23/07 at 08:57:23

Greg_650 wrote:

Really? That's 3 sizes up...

Let's say I'm fairly sure. I think my stock pilot jet was a #52.5 and I upped it to a #55. I'll check later today or tomorrow and let you know. I'll have to find that carb first since I'm actually using an Amal now.

Title: Re: Jetting Carb
Post by Grove_Tucky_650 on 03/23/07 at 09:53:27

That seems to be the going rate for the pilot jet #55.

I am going to take mine out tonight or tomorrow and will let everyone know. The stealer will have to order it and hopefully that will get rid of the backfire I am getting. Is the 1/2 spacer mod supposed to do that also?

Title: Re: Jetting Carb
Post by KenGLong on 03/23/07 at 10:09:45

Grove_Tucky_650 wrote:

I filed mine down to about 66% of original thickness, put a 55 pilot and a 152.5 main. Now I only get some pop and crackle, no more POWs. Also have a Dyna muff and a K&N drop-in replacement air filter. Runs real nice this way at 5000 feet and hauling my 235 lb butt around.

Ken in Albuquerque

Title: Re: Jetting Carb
Post by Greg_650 on 03/24/07 at 07:39:00

Savage_Rob wrote:

Yeah, but wait...what does the Manual say is stock? Your bike was used, right?

I'd check my manual, but its packed. I'm pretty sure that it's supposed to be a 47.5.

Why is everyone changing it out so large? After 7 years, I just changed mine to a 50, 3 weeks ago...No real reason. I'm just curious how it will affect my bike.

Title: Re: Jetting Carb
Post by Sarge on 03/24/07 at 10:04:34

Just looked at the Carb Specs posted in the Tech Documents section of this site. The carb specs listed in Greg's post, show that the stock pilot size is 52.5 from 1995 thru 2004 and 47.5 for earlier models. These specs are also shown in my Suzuki manual. I found the specs were incorect for the CA model I have. My stock original 2003 CA model came with a 52.5 pilot and 145 main, the same as the other USA models.

BTW, I am thankful to all who post on this site. I have learned a lot and incorporated many of the great ideas posted here.

Sarge

Title: Re: Jetting Carb
Post by Savage_Rob on 03/25/07 at 10:30:38

Mine was a 52.5 and I changed it to a 55 because my adjustment screw is jammed in place. Fortunately, that change made my mixture perfect.

Title: Re: Jetting Carb
Post by Scottwerty on 03/25/07 at 15:55:19

Just fine tuned my carb hopefully for the last time! did a 55 pilot with a 155 main, 2 1/2 out on pilot. Have dyna muff, stock baffles removed with an 8 inch baffle from Jireh. baffle an inch or so from tail. going to tack weld it in. I shaved the white spacer only a little I mean a real little. sounds awesome backfire seems to be gone. seems alittle rich.
Q. should i take more off white spacer and turn Idle screw back in some to get rid of the richness

Title: Re: Jetting Carb
Post by Grove_Tucky_650 on 03/25/07 at 16:41:31

Well I think I am going to have to change mine. I will see what is in mine and go to a 52.5 or a 55. I put a 152.5 main in and it is a little off.

Title: Re: Jetting Carb
Post by jd06s40 on 03/25/07 at 18:13:33

just put a sceamin eagle muffler on.i changed the main jet to 152.5 and had alot of backfire so i went with the 150 i still have some backfire and pows evey now and then. should i go with the 55 pilot jet? and what is the white spacer mod? thanks in advanced you guys are great at answering questions and are knowlegable

Title: Re: Jetting Carb
Post by Scottwerty on 03/25/07 at 18:52:31

jd06s40 wrote:

Go to the Technical Documents/Reference area and look for the white spacer and backfire page tells you the basics on that subject! Did you adjust the idle screw?(hidden behind a brass plug on the right side of carb) How many turns out ? whats your altitude? Alot of guys in here can help but you got to give alittle more info.

Title: Re: Jetting Carb
Post by jd06s40 on 03/25/07 at 21:16:03

no i havent adjusted mixture screw that will be next
altitude is 991ft

Title: Re: Jetting Carb
Post by Grove_Tucky_650 on 04/02/07 at 19:06:54

jd06s40 wrote:

no i havent adjusted mixture screw that will be next
altitude is 991ft

Hey jd06s40,

I have a Sportster muff on mine and I have a 152.5 and the 1/2 spacer mod. I have tirned the adjustment screw out 3 turns. Now I only get a poof when I shut the bike off. I am going to order a 55 pilot to see if I can get that to stop also. Since I am just south of Columbus I figured I would through this in.

Title: Re: Jetting Carb
Post by jd06s40 on 04/02/07 at 19:15:08

thanks man. i have adjusted out 2 1/2 turns i will try 3 in the morning when i leave.

Title: Re: Jetting Carb
Post by Grove_Tucky_650 on 04/02/07 at 19:33:44

You should get the 55 pilot. I think lancer says if you go out more then 2 it is helpful to go up on the pilot. If I order one tomorrow do you want me to get you one?

Title: Re: Jetting Carb
Post by Reelthing on 04/02/07 at 19:44:05

sounds like your over adjusting - carry the screw driver with you - and sneak up on it - like a 1/16 turn at time - you get up close to 3 and for sure it's time to hop the pilot jet up a size -

Title: Re: Jetting Carb
Post by jd06s40 on 04/03/07 at 18:23:35

i got a 55 pilot jet already,think i will put it in wednesday
since it is going to rain all day. but thanks grove.

Title: Re: Jetting Carb
Post by noshow on 04/03/07 at 19:22:58

Quick question.

Does each Main and Pilot have a serial number for the dealer to look up?

I went today to grab some and they had 2 different types of 152.5. A shot and fat hex jet and a short and thin hex jet. Both 152.5

Ive not opened mine up to see what the stock looks like but they had a 750 intruder back in the shop....so they opened it up and it looked like the bigger / fatter of the two. But the guy said he couldn't be positive as to which one I really needed since it was a different bike.

Also he didn't have the 55 pilot I wanted in stock so he needed to order it also.

Of course he tried pushing the Dynajet Kit but I kept turning him down....

**Edit** I did some searching and found some pics in the Tech section. The fatter hex looks like the winning ticket but is there still a way to find it with serial numbers or some stock code?

Title: Re: Jetting Carb
Post by Steve530 on 04/04/07 at 20:08:50

The main jet is the Mikuni Large Round jet, N100.604.

The pilot jet is the Mikuni N151.067 or the BS30/96 (which has holes).

Here's a good picture: http://www.motorcycle-superstore.com/department.aspx?Division=6&Department=667&Manufacturer=243

And here's a link to a thread: http://suzukisavage.com/cgi-bin/YaBB.pl?board=RubberSideDown;action=display;num=1133308231;start=11#11

Title: Re: Jetting Carb
Post by Grove_Tucky_650 on 04/06/07 at 15:36:42

Well I finally got my 55 pilot in. I hope it works or helps. I started it up and still seems to have some backfire. I did adjust the screw out to about two or so.

It is snowing here today so I am not able to test drive it until maybe tomorrow or Sunday.

The good thing about the jetting is that you don't have to take out the carb to do it.

I will have to see if I can pick up the K&N air filter and do that if the jetting does not help completly.

Title: Re: Jetting Carb
Post by Glockhead on 05/21/07 at 13:27:53

I have 500 miles on my 2007 S40 and the pipe is turning blue starting at the motor for about 10 inches down the pipe. I'm thinking the mixture is a bit lean.
This weekend I pulled out the brass plug and adjusted the idle jet and that made it idle better and pop less. Then I took of the seat and peaked under the fuel tank. The frame is in the way of removing the top of the carburetor. How is everyone getting into the works of the carb? Are you removing the carb completely?
I ordered the shop manual but it's on back order so I'm guessing a bit on where things are. It looks like the top of the carburetor has a diaphram under it that lifts the slide as vacuum increases and I'm guessing that the needle(s) hang from that slide. I'm further guessing there is a white spacer that is easy to see with a tag on it saying "remove this spacer for top performance" :) Well, maybe not, but I'm hoping that it is obvious. I'm not sure what a pilot jet is vs. a main jet unless it is some kind of mid range jet.
I'm wondering if my guesses are close enough to get me though this or if I should wait for the manual to arrive and hope my exaust pipe doesn't get too ugly in the meantime.
It would be nice to see a picture of a semi-exploded BS40 showing the spacer and other innards.

Title: Re: Jetting Carb
Post by verslagen1 on 05/21/07 at 14:14:38

Take two of these and call us in the morning...

http://suzukisavage.com/cgi-bin/YaBB.pl?board=tech;action=display;num=1157720585

You can either remove the carb or twist it to gain access to the top or bottom. ;D

Title: Re: Jetting Carb
Post by georgekathe on 05/21/07 at 16:32:19

glockhead - a suggestion - as the posting you tagged onto is already pretty long & old may want to paste your question onto a new one & start afresh.

in meantime, read everything on here that sounds interesting & relevant to the carb (know there is a lot but it helped me when I first got my savage) can get a exploded veiw of a carb from somehwere on this site as I recall - just not saure where. but think it is a copy of an exploded view from ron ayers web site (good source for online parts - cost less than dealer & take no longer if dealer has to special order for you!) google ron ayers site & look up the s40 & find the carb from there.

may want to replace the screws in top & bottom of carb with some stainless steel allen head ones - available for many hardware stores. can't recall size but if you ask on this site someone will tell ytou (know it is in the tech section) got to go as dinner is just being served & want to eat it hot.

oh yeah - don't throw the spacer out - most get by with either putting in a washer in its stead or filing it down, depending on their altitude (whioch you may want to include in your posting - it helps with advice on jetting - note my jetting is not like most as I live 4,500 feet up).

hope this is some help - may want to wait for manual but like I said why not start new posting & start reaDING THROUGH THIS SITE A LOT! (darn CAP KEY - AGGHH - DINNER ON TABLE!) ;D

Title: Re: Jetting Carb
Post by justin_o_guy on 05/21/07 at 17:13:40

IF y0u decide to just use a washer or something to replace the white spacer with something thinner, make sure it will go down in the tube the white spacer sits in. Else, the carb will "think" the entire spacer has been removed.
Don't ask how I know... OH,, & it will deliver seriously crummy MPG. You might even wait to mess with the white spacer & just do the jetting & see how the performance comes up.