gs650

[Bones]

I have a 1982 Suzuki gs650e with the Z model carbs. The bike has been sitting for a long time before I got it. There are a few questions I need to ask.

First: What size are the Main Jets. (96.5, or 110)

Second: Where can I purchase the choke boots. When I got it running, I noticed air leaks in the choke boots (Thank God for WD40), and a noticable poping sound like small backfires.

I have been working on this bike on and off for about 6 months. I am just now realizing that motorcycles are a lot different than cars.

Ant help will be welcome.

Thanks,

Bones

[waterman]

Bones, welcome to forum.

The 650e model should have a 97.5 Main jet, the shaft drive g and gl models have 110 mains.
Bikebandit, alphasports, flatout, your local suzuki dealer can probably all get the choke boots. Plenty of help available, just ask.

[BassCliff]

Greetings and Salutations!

Hi Mr. Bones,

Please click here for your mega-welcome, chock full of suggestions and vendors. Then feel free to visit my little BikeCliff website for manuals, "how to" guides, general information, etc, stuff I've been collecting during my internment here. Thanks for joining us.

Thank you for your indulgence,

BassCliff

[brveagle]

Bones, welcome to forum.

The 650e model should have a 97.5 Main jet, the shaft drive g and gl models have 110 mains.
Bikebandit, alphasports, flatout, your local suzuki dealer can probably all get the choke boots. Plenty of help available, just ask.

Are you sure on this? I thought the jetting was the same.

The motor's are the same, except for being a 5 speed vs 6 speed.

[duaneage]

Different airboxes for one, and I believe the cam timing is a little different. They also take different batteries, with the shaft drive requiring a 14aH model and the chain taking a 12aH.

The 650e has more in common chassis wise with the 750 chain drives than the shafts. In addition to the swing arm (obviously) the wiring harnesses are different and the seats are slightly different.

I had a chance to compare mine to a chain a few years ago and from first blush those are some of the differences I noticed.

[Steve]

Here is a clip from the carb "sticky" that is the first thread of this forum:

Hello folks!

I took this from my SUZUKI GS 650 G SERVICE MANUAL
I hope this could help....


GS 650 GZ/GLZ (82)

idle r/min 1100-+/-100r/min
carb mik bs32ss (4 seprate carbs)
id no 34300
bore size 32 (1.26)
float height 22.4.+/-1.0 (0.88 +/-0.04)
fuel level 5.0+/-0.5 (0.20 +/-0.04)
main jet #110
main air jet 2.0
jet needle 5C45
needle jet Y-7
pilot jet #42.5
throttle valve #135
by pass 0.8, 0.7, 0.8
pilot outlet 0.7
valve seat 2.0
starter jet #45
pilot screw pre-set (1.5 turns back (mixture screw))
pilot air jet #160
throttle cable play 0.5-1.0 (0.02-0.04)
choke cable play 0.5-1.0 (0.02-0.04)

GS 650 GD (83)

idle r/min 1100-+/-100r/min
carb mik bs32ss (4 seprate carbs)
id no 34300
bore size 32 (1.26)
float height 22.4.+/-1.0 (0.88 +/-0.04)
fuel level 5.0+/-0.5 (0.20 +/-0.04)
main jet #110
main air jet 2.0
jet needle 5C45
needle jet Y-7
pilot jet #42.5
throttle valve #135
by pass 0.8, 0.7, 0.8
pilot outlet 0.7
valve seat 2.0
starter jet #45
pilot screw pre-set (1.5 turns back (mixture screw))
pilot air jet #160
throttle cable play 0.5-1.0 (0.02-0.04)
choke cable play 0.5-1.0 (0.02-0.04)


GS 650 GLD (83)

idle r/min 1100-+/-100r/min
carb mik bs32ss (4 seprate carbs)
id no 34390
bore size 32 (1.26)
float height 22.4.+/-1.0 (0.88 +/-0.04)
fuel level 5.0+/-0.5 (0.20 +/-0.04)
main jet #107.5
main air jet 1.2
jet needle 5D59-3rd
needle jet X-2
pilot jet #47.5
throttle valve #135
by pass 0.8, 0.8, 0.8
pilot outlet 1.0
valve seat 2.0
starter jet #32.5
pilot screw pre-set (2.5 turns back (mixture screw))
pilot air jet #160
throttle cable play 0.5-1.0 (0.02-0.04)
choke cable play 0.5-1.0 (0.02-0.04)


GS 650 MD (KATANA)(83)

idle r/min 1100-+/-100r/min
carb mik bs32ss (4 seprate carbs)
id no 34390
bore size 32 (1.26)
float height 22.4.+/-1.0 (0.88 +/-0.04)
fuel level 5.0+/-0.5 (0.20 +/-0.04)
main jet #110
main air jet 2.0
jet needle 5C45
needle jet Y-7
pilot jet #92.5
throttle valve #135
by pass 0.8, 0.7, 0.8
pilot outlet 0.7
valve seat 2.0
starter jet #45
pilot screw pre-set (1.5 turns back (mixture screw))
pilot air jet #160
throttle cable play 0.5-1.0 (0.02-0.04)
choke cable play 0.5-1.0 (0.02-0.04)

[TheBigRed]

I had a chance to compare mine to a chain a few years ago and from first blush those are some of the differences I noticed.

And anytime you want to compare some more, you are welcome to stop by..

Amos

[waterman]

Are you sure on this? I thought the jetting was the same.

The motor's are the same, except for being a 5 speed vs 6 speed.

No, I am not totally sure but if you check this link from top of page:

http://www.thegsresources.com/_forum/showthread.php?t=73723&page=5

I also happened to purchase a set of 650e carbs off ebay a great while back and was surprised to see how much difference there was between g and e carb specs. Not to argue the point, but the 650s have the same top end with different lowers. Plain bearing high oil pressure shaft motors vs roller bearing low oil pressure chain drives.

Were the 650e six speeds? I thought they were all fives.

[duaneage]

I think they were all 5 speeds. Amos should know, he rides an E.

[skidMarkNZ]

I think they were all 5 speeds. Amos should know, he rides an E.

Both my gs650gz and my gs650gx are 5 speed, wish it was 6 speed though!