Carb OEM specs as per factory manuals

[NinjaSkunkApe]

help with 1984 850

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

[chef1366]

You found the thread.
Start looking.

[motarken]

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

[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!

[JakeBoucher]

I found all the information for my 1977 Suzuki GS 7750 carb on this thread and I appreciate the time people take to share that info. I could not find what the fuel screw setting should be. The screw on the bottom of the carbs on the motor side. Does anyone have a ball park range for these? I'm assuming all bikes are a little different that's why they don't give a specific spec. I doubt the number of turns is largely different between bikes though. I can't see one bike being at 1 turn and the other at 3.
Thanks!

[dennisht]

Searched by could not find the factory specs on my 1980 GS750E BS32SS carbs. Anyone have these> Thanks.

[cowboyup3371]

Look on this page on Basscliff's site Dennis,

http://members.dslextreme.com/users/bikecliff/images/carbspec_float_height.html

Main Jet is a 112.5 and Pilot Jet is a 42.5, of course, I'm only reading the guide and others may know better

[dennisht]

Thanks cowboyup, just what I was looking for. "GO DUCKS"!!!!!

[ezmack]

Was looking for 650e specs. I think the original picture got lost.

GS 650e
1981- 83
l

Carb BS32SS
bore size 32mm
idle r/min???.... 1100 +-50 r/min
fuel level ?????. 5.0 +-1
float height ???? 22.4mm +/- 1.0 (0.xx +/- 0.xx)
Main jet??????. 97.5
Main Air jet????? 2.0
jet needle?????.. 5C45
Needle Jet?????? Y-7
Pilot Jet??..????. 42.5
By-pass?.?????? 0.8,0.7,0.8
Pilot Outlet?????? 0.7
Valve seat?????? 2.0
Starter jet?????? 47.5
pilot air jet?????? 175

[Brad sweet]

need some help..1981 GS 750 e it has Vance and Hines 4 into 1 and K&N pods the main jet is 132.5 and i cant see the pilot jet size..it has a new petcock and idle mixture screws are at 2.5 turns..the problem is at 3500/4500rpm seems to have a slight annoying miss or feels like its not getting enough gas..also doesn't want to turn higher than 62/6500 rpm ..and this is at cruise that it seems to do it. also seems to have a lack of throttle response at or from cruise to getting on it to pass..any suggestions where or what to look for?

[520eek]

What is the difference between a needle jet and a jet needle? I saw the specs that Bass Cliff put up for an 850. ( factory manual uploaded pic ) and there is specs for both. I am familiar with needle jet, but jet needle?

[tkent02]

One is a jet meant to work with a needle. The other's a needle meant to work with a jet.

[Count_Zero]

Hi,
I´m looking for carb specs for a ´79 gs500e. It´s bought in Sweden, the title says it´s a ´80 - frame # is: gs500e-104630 (engine # 104622). The carbs are mikuni VM type (22mm? - how/where do I measure the bore?) stamped 470-50. I´ve checked the spec sheet (v1.3) - but the only 500 there is with a CV (BS32SS) type carb. (Besides, I think it might just be a misprint - that it´s actually just another 550...) There is a 550 with a VM22SS carb listed, however, but it´s still a 550. I have the Haynes manual for the 550/750s, which works fine for the most part - but my bike is a 500, so it should probably have different jets... or? Does anyone have an idea where I can find these specs? OR should I just cross my fingers and buy new jets according to the specs for the ´79 550, ? Maybe someone has an original Suzuki repair manual for the ´79 GS500E lying around - or know where to get one??? Please help, cause I´m kinda stuck here!

[GS450Rat to Riches]

Same issue... Any ideas???

[GS450Rat to Riches]

need some help..1981 GS 750 e it has Vance and Hines 4 into 1 and K&N pods the main jet is 132.5 and i cant see the pilot jet size..it has a new petcock and idle mixture screws are at 2.5 turns..the problem is at 3500/4500rpm seems to have a slight annoying miss or feels like its not getting enough gas..also doesn't want to turn higher than 62/6500 rpm ..and this is at cruise that it seems to do it. also seems to have a lack of throttle response at or from cruise to getting on it to pass..any suggestions where or what to look for?

same issue... Any ideas???