Katana of the Month - April 2007 - KatanaSoldier
 

Welcome to the KatRiders.com forums.

You are currently viewing our boards as a guest which gives you limited access to view most discussions and access our other features. By joining our free community you will have access to post topics, communicate privately with other members (PM), respond to polls, upload content and access many other special features. Registration is fast, simple and absolutely free so please, join our community today!

If you have any problems with the registration process or your account login, please contact contact us.

Go Back   KatRiders.com > Service Department > Mechanics 101

Mechanics 101 Can't get it to run right? Find a trick to add HP?
From the first oil change to completely rebuilding the engine,
this is the place to talk about the heart of the beast!


Reply
 
Thread Tools Display Modes
Old 04-21-2009, 04:34 PM   #1
shibby
Poser
 
shibby's Avatar
 
Join Date: Aug 2008
Posts: 78
iTrader: (1)

Default Carb air/fuel mix screws

Hi, i'm overhauling my carbs, and i noticed that someone in here said someting about 1 and a half turn on the air/fuel mix would be apropriate, reason i'm asking is that my factory settings (had to remove the brass plugs) was 3 1/4 turn in before it stopped, is that to much? all 4 was the same.
__________________
Suzuki GSX600F 92'
shibby is offline   Reply With Quote
Old 04-21-2009, 04:35 PM   #2
scottynoface
Kat King
 
scottynoface's Avatar
 
Join Date: Jun 2007
Location: Union KY
Posts: 10,789
iTrader: (3)
eBay ID: scottynoface

Default

Turn screws in until lightly seated, then turn to 2.5 turns out for a stock bike.
__________________
90% of motorcycle forum members do not have a service manual for their bike.

Quote:
Originally Posted by Badfaerie View Post
I love how the most ignorant people I have met are the ones that fling the word "ignorant" around like it's an insult, or poo. Maybe they think it means poo
Quote:
Originally Posted by soulless kaos View Post
but personaly I dont see a point in a 1000 you can get the same power from a properly tuned 600 with less weight and better handeling.
scottynoface is offline   Reply With Quote
Old 04-21-2009, 04:36 PM   #3
arsenic
Captain Metric
Supporting Member
 
arsenic's Avatar
 
Join Date: Nov 2004
Location: 60505
Posts: 19,764
iTrader: (229)
eBay ID: arsenic1016

Default

yeah, that's WAY too much. No way in hell the factory setting was 3 1/4 turns.
__________________


A dealer of rebuilt Katana carbs.
Partly Chris's Motorcycles
A rebuilt set of carburetors will cost more than $5 dollars
DREAM Katana


Last edited by Black_peter; 04-21-2009 at 06:43 PM..
arsenic is online now   Reply With Quote
Old 04-21-2009, 04:43 PM   #4
shibby
Poser
 
shibby's Avatar
 
Join Date: Aug 2008
Posts: 78
iTrader: (1)

Default

Quote:
Originally Posted by arsenic View Post
yeah, that's WAY too much. No way in hell the factory setting was 3 1/4 turns. No one EVER said 1.5 turns out, it's 2.5. If you searched I've said that at least 100 times.
Ok. I think i've found the problem, ive realy tightened it, as in the last round is just pressing down the spring, so it will probably be right with 2.5 when the srew touches.

In carb 101 it says 1.5-2 and 2.25 for jet kits, im not arguing, 2,5 sounds more likely =)
shibby is offline   Reply With Quote
Old 04-21-2009, 04:49 PM   #5
arsenic
Captain Metric
Supporting Member
 
arsenic's Avatar
 
Join Date: Nov 2004
Location: 60505
Posts: 19,764
iTrader: (229)
eBay ID: arsenic1016

Default

They come stock at like 1.75 turns out which is too lean.

Last edited by Black_peter; 04-21-2009 at 06:43 PM..
arsenic is online now   Reply With Quote
Old 04-21-2009, 04:53 PM   #6
shibby
Poser
 
shibby's Avatar
 
Join Date: Aug 2008
Posts: 78
iTrader: (1)

Default

Ok, well then i'm glad i posted here=) Thanx a bunch! =) 2.5 from when the screw touches it is then.
shibby is offline   Reply With Quote
Old 04-21-2009, 06:36 PM   #7
jbo197
Knee Dragger
 
jbo197's Avatar
 
Join Date: Dec 2008
Posts: 671
iTrader: (0)

Default

Follow the advice as a guide ....
Mine ended up being Happy @ 2.75

These guy's know what they are talking about ~
jbo197 is offline   Reply With Quote
Old 04-21-2009, 06:42 PM   #8
Black_peter
--Zombie--
Supporting Member
 
Black_peter's Avatar
 
Join Date: Jan 2005
Location: 55116
Posts: 19,552
iTrader: (0)
eBay ID: caferacer1964

Default

Back up your attitude Chris!!

Last edited by Black_peter; 04-21-2009 at 06:44 PM..
Black_peter is offline   Reply With Quote
Old 04-21-2009, 07:19 PM   #9
arsenic
Captain Metric
Supporting Member
 
arsenic's Avatar
 
Join Date: Nov 2004
Location: 60505
Posts: 19,764
iTrader: (229)
eBay ID: arsenic1016

Default

what attitude BP? I see you edited my post's, what am I not allowed to say that carbs 101 is wrong? Did I offend someone there? I'm sorry, I did not mean too.
arsenic is online now   Reply With Quote
Old 04-21-2009, 07:36 PM   #10
suzukiray
Tank Slapper
 
suzukiray's Avatar
 
Join Date: Mar 2008
Location: SoCal
Posts: 475
iTrader: (0)
eBay ID: suzukiray

Default

Quote:
Originally Posted by shibby View Post
Hi, i'm overhauling my carbs, and i noticed that someone in here said someting about 1 and a half turn on the air/fuel mix would be apropriate, reason i'm asking is that my factory settings (had to remove the brass plugs) was 3 1/4 turn in before it stopped, is that to much? all 4 was the same.
Just so you know & can set the screws to where the bike will run the best, this is the CORRECT way to set the air mixture screws. With the screws all at 1.5-2.0 turns out to begin start the bike & warm it up to operating temp. After that set the idle speed. Starting with carb #1, turn the mixture screw 1/4 turn at a time in or out till the bike idles the fastest. If the idle speed comes up a lot, turn it back down. Move on to #2 & same procedure. Then 3, then 4. After you have all 4 of the screws adjusted to where the bike idles the fastest, set the idle to the correct speed. The cool thing about mixture screws is that the motor "Tells" you where they need to be! All other aspects of jetting are by feel or symptoms if you don't have an A/F meter. After the screws are set to where the engine wants them you will be amazed at how easy the bike starts & how little choke is required. The throttle response off the bottom will be quicker & smoother too! Good luck & don't forget to sync them after that. Ray.
__________________
85GS1150E 83GS1100SD 83GS1100ES 82GS1000SZ 96GSXR1500DRAGBIKE 96GSXR1400DRAGBIKE 90GSXR1166DRAGBIKE 05SDG110PITBIKE & 8 QUADS!!! "Life is tough! It's even tougher when you're stupid!" John Wayne
suzukiray is offline   Reply With Quote
Sponsored Links
Reply

  KatRiders.com > Service Department > Mechanics 101

Bookmarks

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
Air fuel mixture screws IcorbenI Suzuki Katana Talk 35 08-23-2011 05:07 PM
Air fuel screws-again cleankat96 Mechanics 101 33 05-16-2009 10:04 AM
Fuel screws closed...still fuel on the boots! eak0703 Mechanics 101 12 06-29-2008 12:20 PM
fuel adjusting screws crossroads Mechanics 101 7 04-11-2008 09:04 PM
Air/fuel pilot screws... bdcastrantas Mechanics 101 20 01-16-2008 07:03 PM



All times are GMT -5. The time now is 11:03 PM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
Katriders.com, Copyright ©2004 - 2014
Katriders.com | Promote Your Page Too