CV Carbs without air box

[1_v8_merc]

Yep, ran my 650 with an empty airbox, and ran my 750 with straight carbs....but Only in the driveway. So you can definitely run without them, but you won't get far, or it will start back-firing like crazy unless you jet.
(i only did it because I wanted to hear it run when I first bought it, and the boots were shot anyways....)


What scares me, is when I read a craigslist ad, where the owner says something like "just pulled the bike out of storage for 6 years, can't get it to stay running, only runs on Starter Fluid"

!!!!!!@!&%^$@!&$@#%&!@????

[Curly]

I ran with the rubber airbox velocity stacks only for quite a bit. Just had some screen material to catch anything big. Sounded amazing until about three years later when I could afford proper k&n pods. I tried the $10 pods and it ran horribly.

This is all with a jet kit of course. You might be able to get away with shimming the needle, and buying only larger main jets (125 I think!?) and richening up the pilot jets.

This might be a bigger headache than just buying the jet kit though, your choice.

[7981GS]

Pod filters work just fine with CV carbs.
I have no idea who started that rumor and led seemingly everyone else to believe it.
I run pods on two bikes with CV's and one has stock exhaust the other 4-into-1.
Not a glitch or hick-up with either one. Ever!
If you tune the carbs correctly, no problems whatsoever.

Daniel

[rvnkvn]

I'm working on a problem like this right now. My 83 GS750es has stock exhaust, Uni pods, 700 cams, 700 pistons. I'm using the 700 carb's with the bigger jets than the 750 had.

Goes like heck under acceleration, but had a POOR idle and a ocassional pop through the exhaust. It REQUIRES me to blip the throttle at a stop, or jack up the idle speed up to keep it running when I'm not going down the road.
I have cleaned the carbs, set the floats,changed the plugs,ran some seafoam through the carbs, removed the plugs to adjust the pilot air screws at 3 turns out. Getting TERRIBLE gas mileage, and it is starting to run alot better,just wont idle or cruise smoothly.

I had pulled the plugs,1,2,3 were black, but 4 seemed like it was light tan. replaced all of them with new, and started to notice that the 4 cylinder exhaust was not as hot as the other 3 were. So I changed coils, and cleaned off the pick up on the right side of the engine. Geting better but NOT good enough..

Any more thoughts on this one?

[snicrep5]

funny, 6 people took that poll and that includes one who voted in each catagory. why not.
regarding the airbox Ive gotten to the carb part of my rebuild and i didnt know it was so cruscial for testing purposes. I couldnt get mine on (gs1100). But i have stiff airbox boots to replace and I routed the main wiring harness between the frame and the airbox, ill have to re-route that. My 2 complaints bout suzuki engineering; the tight fit of the airbox, and the valve adj screws not having slots instead of those tiny little squre ends. Well at least it doesnt have shims.

[rvnkvn]

HJFISK,
Thanks for the Ultra fast shipping on the airbox!! Got it Yesterday!!

[hjfisk]

HJFISK,
Thanks for the Ultra fast shipping on the airbox!! Got it Yesterday!!

Glad I could be of service, and you are welcome.

[redstedman]

Pod filters work just fine with CV carbs.
I have no idea who started that rumor and led seemingly everyone else to believe it.
I run pods on two bikes with CV's and one has stock exhaust the other 4-into-1.
Not a glitch or hick-up with either one. Ever!
If you tune the carbs correctly, no problems whatsoever.

Daniel

YUKYUKYUK.
Thats right up there with my 3/4 race cam and dual point distributor

NOT

[1_v8_merc]

I'm working on a problem like this right now. My 83 GS750es has stock exhaust, Uni pods, 700 cams, 700 pistons. I'm using the 700 carb's with the bigger jets than the 750 had.

Goes like heck under acceleration, but had a POOR idle and a ocassional pop through the exhaust. It REQUIRES me to blip the throttle at a stop, or jack up the idle speed up to keep it running when I'm not going down the road.
I have cleaned the carbs, set the floats,changed the plugs,ran some seafoam through the carbs, removed the plugs to adjust the pilot air screws at 3 turns out. Getting TERRIBLE gas mileage, and it is starting to run alot better,just wont idle or cruise smoothly.

I had pulled the plugs,1,2,3 were black, but 4 seemed like it was light tan. replaced all of them with new, and started to notice that the 4 cylinder exhaust was not as hot as the other 3 were. So I changed coils, and cleaned off the pick up on the right side of the engine. Geting better but NOT good enough..

Any more thoughts on this one?

You're running too rich, because I had the same problem with my 750.
The PO grinded the cams and had Kerker pipes,etc.

I found the fuel screws were out Way too much, and Air Screws were In too much. I also found the floats set inconsistently and off.

I'd check all of those again...just to be sure.

[blowerbike]

a lot of bad info in this thread...
glad i'm not involved.
ray's advice is correct or stock air box...nothing between those suggestions will be 100% correct from idle to redline.

[SVSooke]

Well I have a stock airbox available to.OP seems long gone but I'll put it out for others.Just needs the metal rings for the boots and a filter element.$20+ shipping from Canada.

[rvnkvn]

Hey Blowerbike, You really between Trenton and Germantown OH? I'm In W. Milton, north of Dayton. After I install this airbox, I'd like to get in touch with you and see if I can get you to make sure the carb's are dialed in correctly. Please PM me your contact info when you get a chance. Are you "Terry" from the Craigs list ad for GS parts?

[blowerbike]

Hey Blowerbike, You really between Trenton and Germantown OH? I'm In W. Milton, north of Dayton. After I install this airbox, I'd like to get in touch with you and see if I can get you to make sure the carb's are dialed in correctly. Please PM me your contact info when you get a chance. Are you "Terry" from the Craigs list ad for GS parts?

one in the same..........

[Rover]

no uncleben i was wondering because if i put pods on cause i cant find an air box for this bike and from what i know and what people tell me you need the airbox for this bike to run i was trying to put my hand and arm to cover the back of carbs but that does not work the airbox in this bike makes a back pressure i guess to lift the carb slides in these carbs and i dont think pod filters will work???????????

Pods will work but you have to tune the carb...Re-Jet
Better off finding a stock airbox. One will turn up eventually.

[blowerbike]

correct me if i'm wrong but...
doesn't the engine have to be removed to install the air box?
seems like ive read this before...maybe not???
sounds like jet kit time to me plus no ebay 28 dollar for a set of 4 emgo junkers or you'll be sorry.