Carb OEM specs as per factory manuals

[psyguy]

hi there,

I am new to this forum

Welcome

You'll find all the info you need by using the "search" function in the "Technical Forums", by starting a concrete/specific thread with your question in this sub-forum and by visiting this website: Dynojet

Keep us posted with your projects!

hi there,

I am new to this forum and starting (as a hobby) to restoring GS 750 - 850 & 1000 bikes.
At the moment i have 3 750's, 3 850's and 1 1000 all around '78 - '81.
Some bikes are messed with and i want to transform them in to caferacers.

Mi first question is; How to now what kind of jets size to use when working with say: 4 in 1 exhaust? or with K&N pods instead of traditional airbox? and the relationship fieul/air ?

grts, ice

[chef1366]

You found the thread.
Start looking.

help with 1984 850

Need specs for carbs. Any info helps. I am new to these bikes.

[GregT]

Mikuni VM30SS

For those with GS1000ST models fitted with the oval throat VM30SS.

Float bowls, floats and bowl gaskets are identical to VM29 smoothbores.

The idle mixture screws are identical to the GS1000 VM26 screws.

Given how hard it is to find parts for those carbs, this may help someone...

[Chuck78]

'76-79 GS VM26SS info GS750/850/1000

I have been compiling all of the info from this thread and the couple of factory service manuals that I have been able to dig up, particularly on all GS750 models with VM26 carbs, and 850 and 1000's as well.

The 750 carbs on my bike are ID# 45013, which is not listed, but specs are in between the listed 45010 and 45020. Engine # on my bike says it is not a 77 as my frame is, but probably a 78 or 79. Not sure if the carbs were off of the same engine or not. I also have a set of junked GS1000 parts carbs that have 5DL36-3 needles and ID# 49000, which I confirmed from searching that number that there are other GS1000 owners with those carbs on them. There are apparently variants of the carb ID#'s on many bikes out there which are close numerically to other listed carb ID's off of those model bikes.

Here is an edited version of the chart a GSR member made that bass cliff has for download. This has a few columns removed and one added. There are a few other GS750's (78 750C and 79 750N) that were not listed in most places, but I have confirmed the jets and needles by referencing Suzuki exploded parts view schematics. I may edit this and re-upload it in the future. Please help with corrections and additional info.

[Gorminrider]

GSX 400 (8 valve) carb specs Mikuni B34SS

From the shop manual that includes GSX400cc,two cylinder, years1980 to 1981.
These are for the 4 valve per-cylinder bikes with B34SS CV carbs...I believe these bikes all have Square cam-end covers, not Round ones as do the 2 valve-per 400,425, and 450.


(Brackets) indicate INCHES otherwise mm


spec's are the same for 1980 -81 E,T and and the 1980 L too...
Carburetor type MIKUNI BS34SS
"[E-22]"indicate country code difference for West Germany as it was, then.


Bore size 34
I.D. No, 44202 [model E-22=44220]
Idle rpm. 1100 ± 50
Fuel level 5.0 ± 0.5 (0.20±0.02)
Float height 22.4 ± 1.0 (0.88±0.04)
Main jet #117.5
Main air jet 0.6
Jet needle 5D69-4
Needle jet P-1 [model E-22 P-2]
Pilotjet #42.5
By pass 0.9, 0.8, 08mm
Pilot outlet 0.8
Valve seat 2.0
Starter jet #32.5
Pilot screw 1 and 1/2 turns out
Pilotairjet # 125
Throttle cable play 0.5—1.0mm (0.02—0.04)

Hi,

As a reminder, this is a SPECIFICATION thread. If you need help with your carb issues, please start your own thread in the carb section of the forum.


Thank you for your indulgence,

BassCliff

any ideas of what jets to use 78 gs 1000 ,pod filters,kerker 4/1 elevation around 1000ft or north jersey. Runs great around town but on highway around 4000 rpm falls on its face feels like running out of gas . I am guessing still stock jets..

1978 GS1000 (VM carbs)



Pilot Air Jet: 1.2
Pilot Jet : #15
Cut-a-Way: 1.5
Jet Needle: 5DL36-3
Needle Jet: O-2
Main Air Jet: 1.5
Main Jet: #95
Float Height: 23-25mm
Fuel Level: 3-5mm

[Rover]

Carb specs wanted

1980 GS1000 with CV carbs(chain,two valve)
Checked Cliff's site and did not see this one.
Main jet,pilot jet,float height?
Appreciate it,thanks

Anyone care to proofread me on this GS750 specs page I've written?
Just post any corrections or missing data here.

OEM Carb Specs for all GS750

What is the carb od of an 82 gs 1100 .... I think it is 54 mm amirite?

[thewiz]

This is just for factory specs only for informational purposes. For individual questions, start a new thread with all of the relevant info- Yr, model, mods,etc. Somebody will be glad to help you.

Hello i'm new to this site... i have a 1979 suzuki GS550E and need help with my carbs... How many vacuum lines run off of the gas tank petcock? because i see it goes to the 2nd carb from the left... but there is also a valve stem on the 4th carb (far right carb)... does this get a vacuum line hooked to it or what goes here??
Thank You