Carb OEM specs as per factory manuals

1981 gs 850gl?

Anyone know the 1981 gs 850 settings? maybe I missed it but I think I only say the 1980 gs 850?

I was looking for specs for '77 GS-550, and I suspect the specs here aren't quite right.. or.. I'm mixing up the screws ;-)

GS550L (77-79) the specs are for the VM's

air screw 2.0 turns back
pilot screw 1.0

I think that's telling me to set the pilot air (screw on side top of carb, the one that's easy to get to) to 2.0 turns out, and the 'mysterious emissions screw' under the carb to 1.0. I set my carbs there, they are totally clean, floats are perfect..etc... bench synced..etc.. And the bike will not idle at all without choke on. With the choke on, I could probably ride it (albeit a little rich) the mid-range and above circuits are certainly operating nicely.

Could it be as simple as..whoops, got them reversed? I thought I'd check here, perhaps someone knows.. before I go about spending a lot of time tweaking things.

[first timer]

it's been to nice to sit behind a screen and waste 8 hours organizing the info, i think we basically have all the models covered it just needs it to be easily read. i have a word file started that has started to organize 1/3 the info. when the weather gets bad i wil pick it back up.

-ryan

Just perused this topic, hope to see the link developed. I've not seen a link so far on the pages here... no activity on this project? I will have my GS850 manual in hand within the next few days and would be happy to submit those specs for inclusion. A standardized form to fill in the blanks with sounds like a great idea to me.

yeah man post your 650 info please try to use the format i have used

thanks
-ryan

Ryan,

Was looking through last night and realized I never did post the 650E information.

Here it is:




(as you can see it is different from the 650G(L) models posted earlier.

Amos

Anybody have the pilot screw settings for an '83 GS550L? I was looking at the 550E post above, but my pilot screws were removed by a PO and I'd like to double check what he scribbled in the Haynes manual.

Thank!

I found this in my service manual.
It is for GS750 1976-1979 ,GS550 1977 - 1982



Check the Engine no. ,not frame no. Look for the differences on the same model!!!

I hope it will help

1986 GS450L carb specs

Does anyone have carb specs for a 1986 GS450L?

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)

[first timer]

ok guys my brain hurts, i am trying to get all these carbs we have sorted out and in some sort of standard format

i think w have most of the bikes listed but we still need a few more, some of the ones i know for sure are the 82 -83 1100 g series bikes
as well as the gs 300 carb specs, the gs 125? carb specs the gs 250 carb specs? the 77-78 gs 400 carb specs, the 80-82 gs 400 specs, and the 83 specs. those are the few i can think of right now. as well as some verification of the info that i have compiled and filling in of some missing blanks.

it is going to take me a little time to be able to sort all this stuff out and put it in some sort of standard format. i have so far got stuff listed up to the gs 1000's but nothing is in a standard format yet.

after we get these oem carb setting set maybe we can start loging some KNOWN GOOD settings for bikes with modified carbs like people useing gsxr carbs with what motor and what mods. maybe in the next cople months i can list my settings for the 29mm smoothies i have on my 1000 i am working on.

if any one wants to add info please follow the two types of formats


Form to use for CV type carbs


GS xxxxx
1980- xx
xxx Model

Carb ???????. xxxxx (4 separate carbs)
bore size ?????. xxmm (xxxx)
id no ???????. xxxx
idle r/min???.... xxx r/min
fuel level ?????. xxxmm +/- 0.5 (0.xx +/- 0.xx)
float height ???? xxxmm +/- 1.0 (0.xx +/- 0.xx)
Main jet??????. xxxx
Main Air jet????? xxxx
jet needle?????.. xxxx
Needle Jet?????? xxxx
Pilot Jet??..????. xxxx
By-pass?.?????? xxxx
Pilot Outlet?????? xxxx
Valve seat?????? xxxx
Starter jet?????? xxxx
Pilot Screw............. xxxx
throttle cable play ?. xxxx



Form for VM style carbs

GS xxxx
197x - 7x
xx model

idle r/min???.... xxxx r/min
Carb ???????. Mikuni xxxx (4 separate carbs)
id no ???????. xxxx
bore size ?????. xxxxmm (x.x)
float height ???? xxmm +/- 1.0 (0.xx +/- 0.xx)
fuel level ?????. x.xmm +/- 1.0 (0.xx +/- 0.xx)
Air screw ?????.. xxxx
Cut away?????.. xxxx
jet needle?????.. xxxx-xrd notch from the top
Pilot Screw............ xxxx
Pilot Air Jet????? xxxx
Pilot Jet??..????. xxxx
Pilot Outlet????? xxxx
Needle Jet????.? xxxx
By-pass?.?????... xxxx
Main jet??????? xxxx
throttle cable play ?. 0.x-x.0 (0.xx-0.xx)

thanks for everyone participation

-ryan

Ryan, do you have the 82-83 1100 info? if not I can try to post it tonight, I have the factory service manuel that covers the G, GL, GK for those years.

Here 'ya go, Ryan. Thanks Man.

Mike

1982 GS850GZ Carb. Specs.

mm (in.)

Carb. type: Mikuni BS32SS
Bore size: 32 (1.26)
I.D. no. 45160*
Idle rpm/min 1050 +- 100 rpm
Fuel Level 5.0 +- 0.5 (0.2 +- 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
By pass 1.0, 0.8, 0.8
Pilot outlet 0.7
Valve seat 2.0
Starter jet #32.5
Pilot screw pre-set (well.....maybe)
Pilot air jet #180*
Throttle cable play 0.5-1.0 (0.02-0.04)
Choke cable play 0.5-1.0 (0.02-0.04)

*New Z model spec.

You guys rock. Ryan, thx for taking ownership of this and making it happen.

[first timer]

not really this topic has been lurking for a long time i guess one of us needs to get off our ass and put this info in a excel or word document then pdf it so it can move over to the garage. i think we now have all the models covered.


-ryan

I have an '82 850GZ. I have the factory Suzuki manual and I will post the carb specs. for my bike tomorrow. Have you guys decided if there will be a dedicated page on thegsresources.com for this info.?

Mike