GS1085: RS 34 Flatside vs VM33 Smoothbore?

[srsupertrap]

Which of these two carbs are the better choice for GS's? I have been looking for a set of RS 34 Flatslides's but a set of VM 33's S/Bores fell into my lap. I have heard the VM 33's don't carbureate as well on street bikes as the VM29's. So, what's your experience with these two Carbs . . . should I keep looking for the RS 34's?

[sharpy]

General oppion is 29's are better for the street, the 33's will be almost just as good but the flatslides have a more abrupt delivery over the round slides. Had 33's for mine but a "mate' sold them on me for his habit so running 29's now. Would be using the 33's if i had them. Buts thats just me.

[srsupertrap]

General oppion is 29's are better for the street, the 33's will be almost just as good but the flatslides have a more abrupt delivery over the round slides. Had 33's for mine but a "mate' sold them on me for his habit so running 29's now. Would be using the 33's if i had them. Buts thats just me.

Happen to recall your VM33 baseline setting/jetting?

[blowerbike]

i like the RS carbs because of the accelerator pump and the cool clicky clicky sounds they make.

[kochic]

If you buy the vm33, check if the throttle slide are kawasaki or suzuki.
i have spec of the base jetting here, i will check that today.
Like blowerbike said you can beat the sound of the rs at idle.
marc

[srsupertrap]

I already have a set of VM33's which came off a GS1000 drag bike. Just started opening them up today: the mains are #130, 1.5 Slides has a push pull throttle set up. Need a thorugh inspection, cleaning & new screws.

I didn't know about the RS clickety sound. Please explain further

[blowerbike]

the flat slides pulse back and forth against the carb body's and make a clicking sound at idle..
very coooool as long as a person doesn't think there valves need adjusted or somethings wrong with the engine.

[rapidray]

Either one could be bolted up to a STOCK 16 valve 1100/1150 motor& run great but if you are putting them on an 8 valver, it BETTER have some work done to it! Ray.

[sharpy]

the flat slides pulse back and forth against the carb body's and make a clicking sound at idle..
very coooool as long as a person doesn't think there valves need adjusted or somethings wrong with the engine.

Was going to mention that "rattle" about those flatslides. Not a big fan of noisy extras unless its a dry clutch setup. But thats very very rare on a suzuki.

[gane]

Was going to mention that "rattle" about those flatslides. Not a big fan of noisy extras unless its a dry clutch setup. But thats very very rare on a suzuki.

SR, Perhaps we could get together sometime, I'm in Boulder, & have a 81 GS1100E ( wisco 1168 10.25-1,webcam WSG338 cams,( flowed by Tom Wirth of Mountain Machine.) Yosh (race 4-1) & misc. I have run,29 smoothbores,33 smoothbores, & now running a set of 750 GSXR slingshots ( I believe they are 36mm). and am VERY happy with them. performance is seamless & seemingly un affected by changes in altitude/temp. spirited riding on Peak to Peak renders @ 50mpg avg Corrected Dynojet readings are 133 HP w/110 lbs torque. If intrested, PM me. & maybe we can swap bikes for a couple miles.. G

[blowerbike]

SR, Perhaps we could get together sometime, I'm in Boulder, & have a 81 GS1100E ( wisco 1168 10.25-1,webcam WSG338 cams,( flowed by Tom Wirth of Mountain Machine.) Yosh (race 4-1) & misc. I have run,29 smoothbores,33 smoothbores, & now running a set of 750 GSXR slingshots ( I believe they are 36mm). and am VERY happy with them. performance is seamless & seemingly un affected by changes in altitude/temp. spirited riding on Peak to Peak renders @ 50mpg avg Corrected Dynojet readings are 133 HP w/110 lbs torque. If intrested, PM me. & maybe we can swap bikes for a couple miles.. G

so you ran 29's on a 16 valve 1100???
thats odd.

[boingk]

Corrected Dynojet readings are 133 HP w/110 lbs torque.

110ft/lb or 110Nm? 110ft/lb seems like an awfully high torque figure. Not saying it'd be a bad thing to have though, hahaha.

- boingk

[rapidray]

@ 50mpg avg Corrected Dynojet readings are 133 HP w/110 lbs torque.

I cry BS!!! No WAY that torque number!!! Ray.

[kochic]

1.5 is the kawi slide, the suzuki slide is 2.0.
both run.Almost all vm33 we see for sale listed gs1000 came off KZ.
Marc

I already have a set of VM33's which came off a GS1000 drag bike. Just started opening them up today: the mains are #130, 1.5 Slides has a push pull throttle set up. Need a thorugh inspection, cleaning & new screws.

I didn't know about the RS clickety sound. Please explain further

[srsupertrap]

I see, I found the VM33 recommended jetting at the bottom of this page

http://www.cyclewareables.com/pages/mikuni_vm33mm_smoothbores/mikuni_vm33_mikuni_parts.htm

Tried pasting the chart but lost all the formatting.

I am not sure if the VM33 1.5 Slides will work in Denver. My previous experience was I had to swap out the 1.5's in my VM29 with 2.0 slides to make them work at altitude. A 2.0 Slide allows more air flow so I am thinking the 1.5 will make it stumble, cough or something. Yet the guy I bought them from had them installed on a GS1000 dragbike, He didn't strike me as too mechanically inclined. You can ask Tkent02.

I am interested in any comments/experience from anyone running VM33's with 1.5 slides in the GS1085. Trippivot?