Questions & Answers
Questions: I have a1952 CJ3A it will start ok and run great at an idle and up to about half throttle, then just wont go higher, starts to stall, I have sprayed stating fluid in the carb but it wont increase the rpms, I have a good fuel pump, and a extra carb that I have tried and still the same result, I have the correct gasket for the carp Thick and with the Ventura in it.I have checked voltage, compression, timing, and the advance inside the distributor, I'm at a loss, what would you suggest?
Question By: Keith on Nov 14 2019 3:02 PM
At 450 rpm you should have 20" of vacuum draw. If you can check that and let us know.
Answer By: Willys Jeep Parts Tech on Nov 14 2019 9:54 AM
Questions: is there a return policy on these?
Question By: robert webster on Aug 11 2019 2:52 PM
Yes, just contact us and we'll get you a RMA number to send any return back. https://www.kaiserwillys.com/customer-service Thanks
Answer By: Willys Jeep Parts Tech on Aug 11 2019 2:05 PM
Questions: I have a 1946 CJ2A just got the solex carb. Looking over all looks good. I have a vac advance on distributor. Did not notice a vac port on carb. Am I missing something?
Question By: Kelly Robinson on May 31 2019 4:12 PM
You should have a port on your intake manifold you can run it off of that.
Answer By: Willys Jeep Parts Tech on May 31 2019 11:21 AM
Questions: Is there a pancake filter that will work with this carb? I have a M38 and don't want to use the oil bath system.
Question By: Alex Pizza on Apr 2 2019 2:19 PM
647789 is the dry filter.
Answer By: Willys Jeep Parts Tech on Apr 2 2019 9:22 AM
Questions: I have this Solex carb on an M-38 with a L-134. Since it was new, it seems to lose the fuel in the reservoir after it sits, even for a short time, and needs to be primed. This involves carrying a gas can, unstrapping the windshield, raising it, unlatching the hood, raising it, removing the air horn from the carb and dumping gas down it. The priming has to be repeated several times depending upon how long it has been sitting, until the bowl fills up and it continues to run. Then, everything has to be put back. After it clears out the excess gas from priming, it runs great, although it always needs some choke. Is there a way to remedy this, or to add a primer like aircraft use, which can be operated from the driver's seat?
Question By: John Allen on Sep 13 2018 3:49 AM
I would make sure you are pumping your pedal a bit before starting and during start up as well. Not enough to flood but get motor running. You will always need to choke a cold engine.
Answer By: Willys Jeep Parts Tech on Sep 13 2018 5:54 AM
Questions: I have got a Solex replacement carburetor for my 4-134L engine. When trying to start it flood. Manifold get stuck with lot of liquid gasoline and engine die. All settings at specs. Compresson check give 95-110psi. Vacum is about 300. What to do?
Question By: Thomas Bjorkman on Jul 30 2018 8:37 PM
You may be putting out too much fuel pressure. Please email mike@Kaiserwillys.com and we can help you.
Answer By: Willys Jeep Parts Tech on Jul 31 2018 5:50 AM
Questions: Aloha Mike- When I hit the link for the "Tips & FAQ" it gives me code symbols - see below. Anyway, you could fix that or e-mail me the doc? Is it something on my end? Mahalo ‹ZksÛÆ’ý+ºÊ¶ªHP$%%’%¥$_Û‘cÇ*[µ®»_n !
Question By: Aaron Lowe on May 17 2018 8:55 PM
It is working on our end. I would check your browser to make sure it is up to date. It just opens a link to: http://cj3b.info/Tech/SolexTips.html
Answer By: Willys Jeep Parts Tech on May 18 2018 5:33 AM
Questions: trying to adapt the solex to my model a.what is the distance center to center of the stud holes and the diameter if the throut
Question By: andy on Apr 10 2018 12:45 AM
2-3/8" center to center like the Carter WO
Answer By: Willys Jeep Parts Tech on Apr 11 2018 6:20 AM
Questions: Will this fit my 64 CJ5 to replace the Carter YH? The Carter pokes through the hood of the CJ3A body.
Question By: George on Mar 24 2018 12:01 AM
This is a replacement carburetor that fits on the flat head, four cylinder motor. Typically replaces the WO carburetor. Thanks
Answer By: Willys Jeep Parts Tech on Mar 25 2018 2:03 PM
Questions: On the item: NEW REPLACEMENT SOLEX CARBURETOR FITS 41-53 MB, GPW, CJ-2A, 3A, M38 WITH 4-134 L ENGINE 50-52 M38 (with modification) Does this item include in the order the "modification" parts? I have a '52 M-38 Willys.
Question By: Margarita on Aug 27 2017 3:39 PM
Really you would just need to set up your seal and air horn since it is a down draft carburetor compared to the original side draft YS carb. We have the parts you need.
Answer By: Willys Jeep Parts Tech on Aug 29 2017 5:39 AM
Questions: Where can I find a manual for these solex carburetors?
Question By: Bob on Jul 13 2017 2:58 AM
See link above. We have a tech guide in item description.
Answer By: Willys Jeep Parts Tech on Jul 13 2017 6:21 AM
Questions: I have a 1946 Willys cj2a. 134 F head engine....wll this work for my jeep?
Question By: Angelo Bazzi on Jul 6 2017 10:57 PM
If you have the F head its unoriginal and would want the 923808 - the CJ2A used the L head originally and the 923806 would be the one for you.
Answer By: Willys Jeep Parts Tech on Jul 7 2017 5:41 AM
Questions: For my 1947 CJ2A: Should I just use a plain gasket with the Solex carburetor, or use the special gasket with V-bracket that I used with the original WO carburetor?
Question By: Craig on Apr 14 2017 1:02 AM
You should use the V-based gasket (A6357) with the Solex carburetor. Thanks!
Answer By: Willys Jeep Parts Tech on Apr 14 2017 4:54 AM
Questions: will this replace a Tillotson U1A on a 1940 willys jeep 4 cylinder?
Question By: William Gran on Apr 4 2017 4:57 PM
They really didn't make Jeeps in 1940...Please call us toll free and we can help ID what your working on. Thanks!
Answer By: Willys Jeep Parts Tech on Apr 4 2017 10:44 AM
Questions: Hi it will fit truck 1950-1954 473 & 475 Models? Thanks a lot.
Question By: Antonio Teran on Feb 12 2017 2:13 AM
Use 923808 -We have had people use them for that application. They will bolt up but you linkage may need to change.
Answer By: Willys Jeep Parts Tech on Feb 13 2017 5:42 AM
Questions: my question is fuel flooding problem .I have replaced the wo carb on my l134 with a solex carb I also have electric fuel pump after the engine has been running a while and you turn it off the engine wants to flood how can I correct this problem
Question By: jim on Aug 11 2016 8:18 PM
If you have an electric fuel pump its probably putting out too much pressure. We have pressure regulators part number: 12804 that should stop the issue in your Willys
Answer By: Willys Jeep Parts Tech on Aug 11 2016 1:42 PM
Questions: I plan on using this carburetor for my M-38. What modifications or additional parts are needed?
Question By: Mark Barton on Aug 1 2016 10:20 PM
The only thing you'll really have to add is the air horn (641918) to give the carburetor the 45 degree bend. Thanks
Answer By: Willys Jeep Parts Tech on Aug 2 2016 6:24 AM
Questions: i purchased the solex carb for my 1946 willys cj2a. i installed it and it ran fine everything worked as it should. After 12 hours there is no fuel left in the carb. i cannot figure out what the problem is. I have taken it to four professional mechanics and a local who worked on these while in the military and all of which say it has been hooked up correctly. So i had kaiser willys send me a replacement thinking it was a faulty carb but after installing the second one I am now facing the same problem. I cannot figure out what the problem is. I have put a new fuel pump in and i am getting plenty of pressure from it.
Question By: aaron quinn on Jul 17 2016 2:23 AM
I would check the fuel pump first. Call us toll free and we can try to help you troubleshoot too.
Answer By: Willys Jeep Parts Tech on Jul 18 2016 5:46 AM
Questions: Do you carry replacement throttle and choke cable bracket on the carburetor? My bracket was brittle and broke while cables. It's for a cj2a carb.
Question By: Sean Page on May 26 2016 6:34 PM
You should have a WO Cater. We may be able to help you with used on this.
Answer By: Willys Tech on May 31 2016 5:40 AM
Questions: I have a CJ2A Willys Jeep with a 134F. We installed new Solex Carb and engine floods out and files sparks plugs.Can I have to much fuel psi ? What else can I try?
Question By: Bill on Jun 6 2015 12:00 AM
You should be between 1.5 and 4 pounds of pressure.
Answer By: Willys Tech on Jun 8 2015 12:00 AM
Questions: Do you carry jets for these? I live at 6000ft above sea level and would need to rejet it.
Question By: Anonymous on May 21 2015 12:00 AM
Sorry I don't have different jets for this.
Answer By: Willys Tech on May 21 2015 12:00 AM
Questions: Hi Mike How are you ? Does this Carburetor have a repair kit ?
Question By: RICARDO NOGARI on Jan 1 1970 12:00 AM
SK13 is the part number for it.
Answer By: Willys Tech on Apr 29 2015 12:00 AM
Questions: I bought a cj2 that came with a Solex carburetor on it. I started it this past weekend and have obvious troubles with the needle valve adjustment as it runs very rich.nI tried the cj3 tech page but it does not give any detail as to what factory setting should be or how to set it. Can anyone here help? Thanks
Question By: Anonymous on Jan 12 2015 12:00 AM
I would turn it all the way in then back it off a turn and a half. Fine tune from there.
Answer By: Willys Tech on Jan 13 2015 12:00 AM
Questions: I have a new solex carb on a l134 engine with fuel pressure regulator set at 2 ,i also have a inline electric fuel pump. my question is why does the engine load uo when you try to acceralate
Question By: jim on Dec 21 2014 12:00 AM
I would double check your timing and make sure you put out no more than 4 pounds of pressure.
Answer By: Willys Tech on Dec 22 2014 12:00 AM
Questions: is the lever on the carbuerator up or down for the choke to work.
Question By: jim on Dec 14 2014 12:00 AM
You pull the choke out and the lever goes up.
Answer By: Willys Tech on Dec 15 2014 12:00 AM
Questions: I have a 1948 CJ2A will my airhorn wok with this carburetor?
Question By: Anonymous on Sep 17 2014 12:00 AM
Yes, these are designed to take the original air horn.
Answer By: Willys Tech on Sep 18 2014 12:00 AM
Questions: Is free shipping available for this item outside of the United States?
Question By: Josue on Jul 1 2014 12:00 AM
The free shipping is for the 48 states only.
Answer By: Willys Tech on Jul 1 2014 12:00 AM
Questions: I have what I'm told is a 48 Jeepster in he shop, am relatively certain that I have a go-devil engine. Is this the proper carb? Will I need anything to adapt etc...? Thanks in advance.
Question By: John on Jun 24 2014 12:00 AM
These are only for the vehicles above. We can help though if you send in your old Carter carburetor.
Answer By: Willys Tech on Jun 24 2014 12:00 AM
Questions: I have a CJ-3A that is backfiring and dying. If I keep the engine revved it stays running but you can feel the occasional bump of an almost-backfire. Distributor was replaced by a mechanic about 3 yrs ago, replaced the spark plugs yesterday. Tried adjusting the carb and while it helped the roughness of the revved engine, as soon as you let off the gas it backfires and dies. Was running fine until about a month ago. I am no mechanic, learning all this as I go. Suggestions?
Question By: Anonymous on Jun 11 2014 12:00 AM
I could be a fuel delivery problem. You may want to check your float. I would also try advancing the timing to see if that does the trick as well.
Answer By: Willys Tech on Jun 11 2014 12:00 AM
Questions: Hello, I have been looking for a replacement carburetor for a 4-134 in a 53 cj3b which has a 57 under carrage. I have a clearance problem, The carb which was on it was a holly and it drowned the engine, I have 6.5 between the manifold and the hood. I tryed the other Solex and it was too tall, The holly with the air horn is 6.25 tall, does the riser come off this Solex carb? Would it work?
Question By: Randy on Feb 27 2014 12:00 AM
The 923808 should be the right carb for your 4-134 F head engine.
Answer By: Willys Tech on Feb 28 2014 12:00 AM
Questions: I am using a electric fuel pump. What is the recommended pump pressure to use with these kind of carbs?
Question By: lucas on Nov 5 2013 12:00 AM
You want to be less than 4 pounds when under way.
Answer By: Willys Tech on Nov 5 2013 12:00 AM
Questions: Mike, both the linked docs here and various boards recommend installation of an inline fuel pressure regulator, delivering between 1-3/4 and 2 pounds of fuel pressure. On installation of the Solex on my L134, the mixture doesn't seem to be able to be leaned properly - it always runs too rich.
Question By: Sean on Jan 1 1970 12:00 AM
The problem most people run into is that they are missing the original spacer between the fuel pump and the block. It is part number: 866236
Answer By: Willys Tech on Nov 4 2013 12:00 AM
Questions: Is there an option to purchase this carb with linkage or is the linkage available seperate?
Question By: Matt on Sep 19 2013 12:00 AM
The linkage is availble good used. Please call us toll free.
Answer By: Willys Tech on Sep 19 2013 12:00 AM
Questions: My 1945 GPW did not come with a carb., it was missing. I purchased a Solex from you and need to know how to choke it. Does the lever go up or down to choke. I don't see a flap inside and can't see what its doing.
Question By: keith on Feb 17 2013 12:00 AM
You just hook your choke cable up to the bracket and thats pretty much it. The function is internal on it.
Answer By: Willys Tech on Feb 18 2013 12:00 AM
Questions: Will I need any additional hardware with the carburetor? I have the steel line coming off the fuel pump to a rubber hose which connects to steel line coming off of carburetor.
Question By: Zack on Feb 16 2013 12:00 AM
You just have to hook up your existing linkage and lines to it and you are all set.
Answer By: Willys Tech on Feb 18 2013 12:00 AM
Questions: Does this solex carb come with throttle and choke connections?
Question By: Mike M on Sep 5 2012 12:00 AM
Yes that is correct it does.
Answer By: Willys Tech on Sep 5 2012 12:00 AM
Questions: Will the Solex Carburetor fit a 1945 willys MB jeep engine.
Question By: manny on Jun 1 2012 12:00 AM
Yes that is correct. It is a direct replacement for Carter WO's.
Answer By: Willys Tech on Jun 4 2012 12:00 AM
Questions: I'm creating my own high flow manifold for my go devil. Would it help the performance of my engine with this carb.
Question By: Nathan on Apr 4 2012 12:00 AM
Im sure it wouldnt hurt:)
Answer By: Willys Tech on Apr 4 2012 12:00 AM
Questions: Do you have a good used carburetor bowl for a WO carb? If so how much? I have a rebuildable WO carb, but the bowl section does'nt suit me. Thank you -
Question By: Robert on Feb 24 2012 12:00 AM
Please call us toll free. We may have a core to help out.
Answer By: Willys Tech on Feb 27 2012 12:00 AM
Questions: Will these work for a replacement on a Willys Flathead 4 cylinder used in a military generator? Will the governor linkage, throttle linkage and choke linkage hook up correctly? Will the air duct for the remote mounted oil bath air cleaner work? Someone told me the threads for the fuel inlet and other things on these are metric and not SAE. Thanks.
Question By: Tom Lanigan on Sep 13 2011 12:00 AM
This is a replacement for the original Carter WO they used on Willys. As long as the carburetor on yours meets those specs then yes. Please call us toll free. We can help answer any questions you might have too.
Answer By: Willys Tech on Sep 14 2011 12:00 AM
Questions: this carb says it will work for a m38 with modification wat kind of modificatio will i need
Question By: Alex on Aug 15 2011 12:00 AM
All you really need is the air horn part number: 641918 & A17318 to make your 90 degree bend that the original YS had.
Answer By: Willys Tech on Aug 16 2011 12:00 AM
Questions: Does this come with the gasket between the carb and intake manifold?
Question By: Anonymous on May 5 2011 12:00 AM
Answer By: Willys Tech on May 6 2011 12:00 AM
Questions: Did the 1946 cj2a originally have a carter or a solex carburetor, or were both used during this time. If so, how do I know which one should be on my jeep. Thanks.
Question By: Anonymous on Apr 19 2011 12:00 AM
Originally all CJ-2A's used a Carter WO. This is a direct replacement for that Carter WO carburetor. They are plug and play.
Answer By: Willys Tech on Apr 20 2011 12:00 AM
Questions: Is this carb made by Solex,or someone else?
Question By: Rich on Jan 19 2011 12:00 AM
This is made by Solex.
Answer By: Willys Tech on Jan 19 2011 12:00 AM
Questions: How long does it take to replace an old carb with this one?
Question By: Anonymous on Nov 22 2010 12:00 AM
We typically ship same day and this is a direct replacement, plug and play.
Answer By: Willys Tech on Nov 23 2010 12:00 AM