Rob's Carburetor Rebuilds

'77-'79 GS750 8V Fours with Mikuni VM26 Mechanical Slide Carbs

This is the first gen GS750 with the VM26 mechanical slide carbs. Every model listed here will interchange physically, but setting will change and different tuning parts will cause issues if not properly identified. I expect these bikes to have the wrong carb and have to always make sure to ID them correctly and make sure they have proper parts installed.  When properly set-up these bikes are great and run great and can be very dependable.

Starting in '71 Suzuki started year coding bikes in the last letter used in the name. You may see this code on your bikes paperwork or in a parts list or catalog.  I leave this off as it is redundant if you are showing the year anyway. There is a chart below to find your year code.

Below is a set of '77 GS750 45011 carbs with the carb mounted lever choke, and a couple of pictures of the later version that use a cable operated choke.  These GS750 carbs are hard to tell apart so they are commonly mixed in both parts and mounted models. They have a stamped number on the diamond shaped area where the body mounts to the main mounting bracket so they can be easily identified. The different models have internal tuning changes so care must be taken to assemble them with all the correct parts.



'77 GS750----------------------------------------------45011 and 45012
'78 GS750----------------------------------------------45030
'78 GS750E--------------------------------------------45040 and 45030
'79 GS750----------------------------------------------45050
'79 GS750E--------------------------------------------45050
'79 GS750L---------------------------------------------45080




Suzuki Year Codes

R- 1971
J- 1972
K- 1973
L- 1974
M- 1975
A- 1976
B- 1977
C- 1978
N- 1979
T- 1980
X- 1981
Z- 1982
D- 1983
E- 1984
F- 1985
G- 1986
H- 1987
J- 1988
K- 1989
L- 1990
M- 1991
N- 1992
P- 1993
R- 1994
S- 1995
T- 1996
V- 1997
W- 1998
X- 1999
Y- 2000
K1- 2001
K2- 2002
K3- 2003
K4- 2004
K5- 2005
K6- 2006
K7- 2007
K8- 2008
K9- 2009
L0- 2010
L1- 2011
L2- 2012
L3- 2013
L4- 2014
L5- 2015
L6- 2016
L7- 2017
L8- 2018
L9- 2019
M0- 2020
M1- 2021
M2- 2022
M3- 2023
M4- 2024
M5- 2025

GS750-45011-77 '77 GS750 45011

GS750-45080-79 '79 GS750L-45080

GS750-45011-77 '77 GS750 45011

GS750-45080-79 '79 GS750L-45080

GS750-45011-77 '77 GS750 45011

GS750-45011-77 '77 GS750 45011

GS750-45011-77 '77 GS750 45011

GS750-45011-77 '77 GS750 45011

GS750-45011-77 '77 GS750 45011

GS750-45011-77 '77 GS750 45011

GS750-45011-77 '77 GS750 45011

GS750-45011-77 '77 GS750 45011