Carb OEM specs as per factory manuals

1982, 1983 and 1985 SUZUKI GS300L

Your carbs if stock are Mikuni BS30SS Twin

Idle 1250 +- 100

Fuel Level 4.0 +- .5 mm

Float Height 21.4 +- 1.0 mm

Main Jet 115

Main Air Jet 1.0 mm

Jet Needle 5C53

Needle Jet 0-7

Pilot Jet 17.5

By Pass 0.9, 0.8, 0.7 mm

Pilot Outlet 0.8 mm

Valve Seat 2.0 mm

Starter Jet 25

Pilot Screw ?? (preset)

Pilot Air Jet 147.5

Throttle Cable play 1.0 - 2.0 mm

Okay, finally got tired of replying to PM's about the spreadsheet. Not that there were that many, I just finally got around to posting the file on the 'net...

hope this helps, although I haven't updated it since I first posted about it.

find it here: http://members.shaw.ca/johnwightman/images/SuzCarb.xls

let me know if the link doesn't work.

Suzuki Service Manual: Dec 1979
GS750
1980 TSCC
Model: L

Idle Speed: 1050 +/- 100 rpm
Carb: Mikuni BS32SS
Id no: 45410
Bore size: 32mm (1.26")
Float height: 22.4mm +/- 1.0 (0.88" +/- 0.04)
Fuel level: 5.0mm +/- 0.5mm (0.20" +/- 0.02)
Main Jet: 112.5
Main air jet: 1.7mm
Jet needle: 5C32-3rd
Needle Jet: Y-5
Pilot Jet: #42.5
By pass: 0.8mm
Pilot outlet: 0.7mm
Valve seat: 2.0
Starter jet: #50
Pilot Screw: 3 and 1/2 turns back
Pilot air jet: #150
Throttle cable play: 0.5-1.0mm (0.03-0.04in)

[psyguy]

I propose that we start a carb spec page maybe a link off the carb clean up page. we can follow this layout

first timer, a lil suggestion here for this great thread
it may be worth noting in the first post that the carb specs are often different for us bikes vs bikes for other markets
this may help avoid any confusion for readers outside the us
thanks for your consideration

Any one got info on 450's, i am trying to get info on 81' and if I do will post them

specs gs500e 1981

hi people,

looking for specs from an 1981 GS500E. can anyone post them or send them to me?

thanx a lot

[srsupertrap]

1979 US GS1000 Factory Specifications

Suzuki Service Manual: October 1979
GS1000
1979
Model: C

Idle Speed: 900 - 1100 rpm
Carb: Mikuni VM26SS
Id no: 49020
Bore size: 26mm (1.023")
Float height: 24.0mm +/- 1.0 (0.94" +/- 0.04)
Fuel level: 4.0mm +/- 1.0mm (0.16" +/- 0.04)
Air screw: PRE-SET (DO NOT DISTURB)
Cut away: 1.5
Jet needle: 5DL36-3
Pilot Screw: PRE-SET (DO NOT DISTURB)
Pilot Air Jet: 1.2
Pilot Jet: 15
Pilot Outlet: Not specified
Needle Jet: O-2
By-pass: Not specified
Main jet: 95
Main Air Jet 1.5
Throttle Cable Free Play: 1.0 - 1.5mm (0.039"-0.059)


Suzuki Service Manual: October 1979
GS1000
1979
Model: S

Idle Speed: 1000 +/- 50 rpm
Carb: Mikuni VM26SS
Id no: 49020
Bore size: 26mm (1.023")
Float height: 24.0mm +/- 1.0 (0.94" +/- 0.04)
Fuel level: 4.0mm +/- 1.0mm (0.16" +/- 0.04)
Air screw: PRE-SET
Cut away: 1.5
Jet needle: 5DL36-3
Pilot Screw: PRE-SET
Pilot Air Jet: 1.2
Pilot Jet: 15
Pilot Outlet: 1.5
Needle Jet: O-2
By-pass: 0.8
Main jet: 95
Main Air Jet Not Specified
Throttle Cable Free Play: Not Specified


Suzuki Service Manual: October 1979
GS1000
1979
Model: L

Idle Speed: 1000 +/- 50 rpm
Carb: Mikuni VM26SS
Id no: 49050
Bore size: 26mm (1.023")
Float height: 24.0mm +/- 1.0 (0.94" +/- 0.04)
Fuel level: 4.0mm +/- 1.0mm (0.16" +/- 0.04)
Air screw: PRE-SET
Cut away: 1.5
Jet needle: 5DL36-3
Pilot Screw: PRE-SET
Pilot Air Jet: 1.2
Pilot Jet: 15
Pilot Outlet: 0.6
Needle Jet: O-2
By-pass: 0.8
Main jet: 95
Main Air Jet Not Specified
Throttle Cable Free Play: Not Specified

I am not sure what carbs I have on my 78 GS550. They are Mikuni round slide and it would appear they are VM26 but the number stamped on them is 47030 I can't seem to find a ref for that anywhere. Any info would be great.

These carbs are off a 1978 GS750E. They are 26mm. They should be 22mm on the GS550.

http://www.thegsresources.com/_forum/showthread.php?t=73723&page=4

Check this link under GS750 Specs and you will find the ID number that you quoted. 45030.

I am not sure what carbs I have on my 78 GS550. They are Mikuni round slide and it would appear they are VM26 but the number stamped on them is 47030 I can't seem to find a ref for that anywhere. Any info would be great.

Ryan, here are the numbers for the 82/83 GS1100

GS 1100
1982-83
G, GL, GK Model

Carb ???????. Mikuni BS34SS (4 separate carbs)
bore size ?????. 34mm (1.34)
id no ???????. 49400
idle r/min???.... 1050 +/- 100 r/min
fuel level ?????. 5.0mm +/- 0.5 (0.20 +/- 0.02)
float height ???? 22.4mm +/- 1.0 (0.88 +/- 0.04)
Main jet??????. #115
Main Air jet????? 1.7
jet needle?????.. 5D58
Needle Jet?????? X - 3
Pilot Jet??..????. #40
By-pass?.?????? 0.9, 0.8, 0.8 (0.04, 0.03, 0.03)
Pilot Outlet?????? 0.7
Valve seat?????? 2.0
Starter jet?????? #50
Pilot Screw............. PRE-SET
Pilot Air Jet?????..#170
throttle cable play ?. 0.5 ? 1.0 (0.02, 0.04)
Choke Cable Play??. 0.5 ? 1.0 (0.02, 0.04)

Hi,

I'm trying to set my idle mix on my 85 GS110G but am having problems (could just be me as I'm not experienced at "highest rev" tuning) but thought I'd check the jet sizes from the carb that came out of my bike (replaced with striped, cleaned & re-O ringed spare carb with the same size jets) Pics attached.

http://s251.photobucket.com/albums/gg305/flyingcrocodile46/?action=view&current=IMG_0008-1.jpg

My main jet appears stock at 115 but my pilot air jet appears to be 150 rather than 170. What difference would this make?

btw, my bike has standard pipes and air cleaner and the bike that the spare carbs came from had a 4 to 1 and standard air cleaner.

TIA

Colin

Looking at the December 76 FSM i have -
Carburetor Jetting Specifications:

Type: VM26SS
Main Jet: 100
Air Jet: 0.7
Needle Jet: 0-6
Jet Needle: 5F21-3
Pilot Jet: 15
Pilot Air Jet: 1.6
Cutaway: 1.5
Air Screw: 1 Turn back
Float Hieght: 25-27mm

jet size

does anybody know the main jet size of a 77 gs 750, and any idea what size or sizes to try if i'm using pod filters.

1980 GS850G carb specs, finally!

I finally got around to typing up the specs for the 1980 GS850G carburetors.

1980 GS850GT Carburetor Specs
Unit of Measurement = mm(in.)

Carburetor type = Mikuni BS32SS
Bore Size = 32 (1.26)
I.D. No. = 45110
Idle rpm = 1050 +/- 100rpm
Fuel Level = 5.0 +/- 0.5 (0.20 +/- 0.02)
Float Height = 22.4 +/- 1.0 (0.88 +/- 0.04)
Main Jet = #115
Main Air Jet = 1.7
Jet Needle = 5D50
Needle Jet = X-5
Pilot Jet = #40
Bypass = 1.0, 0.8, 0.8
Pilot Outlet = 0.7
Valve Seat = 2.0
Starter Jet = #32.5
Pilot Screw = Preset
Throttle cable play = 0.5-1.0 (0.02-0.04)

Thank you for your indulgence,

BassCliff

VM Identifying

I've got a weird set of VM's stamp with the I.D. number x48810.

Can anyone I.D them?

Does anyone have the specs on the 82 1100E? I could sure use them. Would it be about the same as the 1100? Mainly need the float level.

the float level is 22.4 mm +/- 1.0 mm
the service level is 5 mm +/- 0.5 mm