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weber 40 dcoe need help with carbs ANYONE know what fuel pressure?

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Offline 1badzuk

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weber 40 dcoe need help with carbs ANYONE know what fuel pressure?
« on: November 24, 2006, 01:33:28 PM »
I had a 1.3 with dual 40s and it ran mint.   Now i put a 1.6 motor in and put the webers on it and it runs like poop.  Do i need to change jets or can i just readjust the screws...  Any help would be nice i need to get it running agian. if i do need jets which ones would be the ones to put in it.
  im thinking 120 mian jets and 170 air corectors?? dose that sound about right?  or is the stock 115 and 200 ok??? thank-s everyone
« Last Edit: December 04, 2006, 10:13:52 PM by 1badzuk »
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87 sammy 33's sometimes on 35s hole lot of extras 4 link arb lockers built tcase and tranny 1.6 dual weber carbs racing seats snorkle and so on.........ALOT MORE..........
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Offline mrfuelish

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Re: weber 40 dcoe need help with carbs
« Reply #1 on: November 24, 2006, 01:41:07 PM »
If they have been sitting a while pull the mains and the air jets and check them to make sure that they are not clogged. also check the manifold vacuume,and timming.
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Offline ebewley

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Re: weber 40 dcoe need help with carbs
« Reply #2 on: November 24, 2006, 07:31:51 PM »
Don't forget to search the ZUKIWORLD archives for answers too!

http://www.zukiworld.com/month_050102/feature_dcoesetup.htm


-Eric
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Eric L. Bewley                               
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Offline 1badzuk

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Re: weber 40 dcoe need help with carbs
« Reply #3 on: November 26, 2006, 12:37:30 AM »
that post you put up is for a 1.3 i did allready check through all the posts!!!
i tore them down and rebuilt then cleaned everything.  I think i need new jets anyone know which ones or anything on jets????????
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87 sammy 33's sometimes on 35s hole lot of extras 4 link arb lockers built tcase and tranny 1.6 dual weber carbs racing seats snorkle and so on.........ALOT MORE..........
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PSYKOCHI

Re: weber 40 dcoe need help with carbs
« Reply #4 on: November 28, 2006, 04:17:14 PM »
I found one guy thru Reynold's machine in CA.  He was very knowledgeable about the Webers.
Unfortunately lost his e-mail address when my hard drive fried.
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Offline fx90

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Re: weber 40 dcoe need help with carbs
« Reply #5 on: November 29, 2006, 02:22:04 PM »
i had a 1.3 and changed to a 8v 1.6 adjusted air screws and idle ran perfect with dual webers       fred
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Offline 1badzuk

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Re: weber 40 dcoe need help with carbs
« Reply #6 on: November 29, 2006, 09:40:02 PM »
did you change the jets at all?? i just bought 120 main jets and 170 air correctors ill put them in and see what that dose....
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87 sammy 33's sometimes on 35s hole lot of extras 4 link arb lockers built tcase and tranny 1.6 dual weber carbs racing seats snorkle and so on.........ALOT MORE..........
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Offline ebewley

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Re: weber 40 dcoe need help with carbs
« Reply #7 on: November 30, 2006, 07:57:57 AM »
Quote from: 1badzuk on November 26, 2006, 12:37:30 AM
that post you put up is for a 1.3 i did allready check through all the posts!!!
i tore them down and rebuilt then cleaned everything.  I think i need new jets anyone know which ones or anything on jets????????

Fundamentals are the same. I've had mikuni and weber sidedrafts on both 1.6 8-valves and 1.3 engines. That carburator set the the story was about came off of a 1.6 and was put on a high po 1.3 that Reynolds machine built for me. I had to up the main jets!

The carburator requirements for the 1.3 and 1.6 8-valve are very similar. SO much so that an older used up 1.6 may take less fuel/air than a fresh or hopped up 1.3 and vice versa.

Are you sure the 1.6 that you installed is running correctly?

How are your plugs looking after a bit of running around?

One thing I like to do and it works really good if you have a header and still works if you have a exhaust manifold is get a squirt bottle with some water and spray the individual header tubes as they come out of the head. You can tell how hot each cylinder is running (roughly) and also tell if you have a dead hole or one that is running off a bit. Then you can focus on that.

Hope that helps, -Eric
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Offline 1badzuk

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Re: weber 40 dcoe need help with carbs
« Reply #8 on: November 30, 2006, 08:56:43 PM »
i just got sone with putting the new jets in i put the 120 main jets and got it really close it runs alot better but not perfect yet.  It wont come back down at idle when you hit the gas it goes up up up and dont come back. maybe it just needs a lil oil and i guess if i buy a tuning tool ill get them right..
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87 sammy 33's sometimes on 35s hole lot of extras 4 link arb lockers built tcase and tranny 1.6 dual weber carbs racing seats snorkle and so on.........ALOT MORE..........
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Offline ebewley

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Re: weber 40 dcoe need help with carbs
« Reply #9 on: December 01, 2006, 08:20:24 AM »
Quote from: 1badzuk on November 30, 2006, 08:56:43 PM
i just got sone with putting the new jets in i put the 120 main jets and got it really close it runs alot better but not perfect yet.  It wont come back down at idle when you hit the gas it goes up up up and dont come back. maybe it just needs a lil oil and i guess if i buy a tuning tool ill get them right..

Yes, you need a flow 'tuning tool' that should be standard issue sold with the carbs. If the throttle is sticking, make sure you have mounted the carbs properly, If one is cocked off to the side or unlevel with the other, they can bind.

-Eric
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Suzuki 4x4 Owners Association - Please Join  The ZUKIWORLD ORDER Today!
About ZUKIWORLD Online: We are an enthusiast web site dedicated to the promotion of the Suzuki Automobile as the best and most capable vehicle on the planet. We offer product reviews, Tech tips, DIY, Travel and Adventure, Forum, Technical information, Life Style, and so much more!
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Offline 1badzuk

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Re: weber 40 dcoe need help with carbs
« Reply #10 on: December 02, 2006, 06:27:55 PM »
ok cool ill check that out...   Its over heating when im going down hill i dont knwo why.... the 3 cylinder is glowing and the others are not.....   wish there was someone in pa to do this ill pay anyhting to have someone help me !!!!!!!!!!!!
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87 sammy 33's sometimes on 35s hole lot of extras 4 link arb lockers built tcase and tranny 1.6 dual weber carbs racing seats snorkle and so on.........ALOT MORE..........
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Offline mrfuelish

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Re: weber 40 dcoe need help with carbs
« Reply #11 on: December 02, 2006, 08:00:44 PM »
It sounds like you could have a vacuum leak and maybe a bad egr valve. do you have a vaccum advance on the dist.? is the hose on your egr? take the manifold back off and see how the gasket looks and how it is hitting the head.
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1987,1988,1988,1990 samurai's,  1953 m38a1,  1996 x-90,blue.1996 x-90 red.1994 2 door tracker.   only Dead Fish go with the flow.                No Hairy Nosed Wombats were ran over on the trail today.       My ZUK is Xenophobic.
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Offline 1badzuk

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Re: weber 40 dcoe need help with carbs
« Reply #12 on: December 02, 2006, 09:07:39 PM »
these are on a 1.6 tracker motor not a 1.3 sammy by the way ok thanks ill try all that asap and get back...  for the header to glow it would be runing lean right? and that means i need to back out the screw a lil..?????  damn i wish i just had a stock intake and carb id trade even up for these damn webers i have everything to change it over to fuel injected just dont have much time i need it for winter....
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87 sammy 33's sometimes on 35s hole lot of extras 4 link arb lockers built tcase and tranny 1.6 dual weber carbs racing seats snorkle and so on.........ALOT MORE..........
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Offline 1badzuk

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Re: weber 40 dcoe need help with carbs
« Reply #13 on: December 04, 2006, 10:12:40 PM »
ok i got them a lil better.. Dose anyone know the fuel pressure they should get???
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87 sammy 33's sometimes on 35s hole lot of extras 4 link arb lockers built tcase and tranny 1.6 dual weber carbs racing seats snorkle and so on.........ALOT MORE..........
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Offline mrfuelish

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Re: weber 40 dcoe need help with carbs ANYONE know what fuel pressure?
« Reply #14 on: December 05, 2006, 12:39:19 AM »
I run three pounds on a single spring float, and five pounds on a double spring float.
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1987,1988,1988,1990 samurai's,  1953 m38a1,  1996 x-90,blue.1996 x-90 red.1994 2 door tracker.   only Dead Fish go with the flow.                No Hairy Nosed Wombats were ran over on the trail today.       My ZUK is Xenophobic.
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