Question about 1981 Suzuki Gs 550 L

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What size carburators does a 1981 gs550l have

Looking for single air filters airbox is gone need to know what mm to order

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  • 38 Answers

2" ID in a uni or k&n should fit the back of your carbs

Posted on May 14, 2014

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Posted on Jan 02, 2017

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SOURCE: Air Filter Pods

Check the K&NFilters Website and you'll probably find the right size for your bike. Be aware, though, that changing air filters can lead to less performance as a result of carburetor jetting problems that can take some time to solve, and get your bike running well gain. Usually the manufacturer's set-up works better than home-fiddled-with ones.

Posted on Jul 07, 2009

  • 35 Answers

SOURCE: suzuki gs550l flot height

not sure on the exact specs but flip the carb upside down and look how the floats look to the horizon of the earth. Sounds silly but that is how pretty much all bike mechanics set them, just make them level to the earth. Good luck

Posted on Oct 17, 2009

  • 19396 Answers

SOURCE: I need A wiring diagram


This bike was released in 1977. The documentation for this bike originally was not released in pdf format. The manual is available only from pay-for websites, and not for free download. Here the manual at $6.99:



Posted on Feb 19, 2011

  • 15 Answers

SOURCE: Replacing choke cable on a 1981 Suzuki GS550L.

It isn't hard at all, just remove the choke from the carbs then pull back on the end you took out of it and push back on the spring and twist the end so it comes off, if your new cable came with these its still pretty handy to keep around, especially the springs. But after that, loosen the screw that is underneath the choke adjuster and pull it out then loosen the end from the choke lever and just simply yank it out from the bike. Theres nothing really there that could get in the way besides the breather in the valve cover so you should be fine. After that simply do everything backwards that you took it off.

Posted on May 19, 2011

  • 15 Answers

SOURCE: what is the firing order for a 1981 Suzuki GS550L

If it starts up and runs fine then the firing order isnt your problem you must have some sort of vacuum issue possibly not enough air

Posted on May 19, 2011

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Can't get my carbs to tune on a Suzuki gs550t 1981 carbs rebuilt and cleaned shimmed valves new head gasket still no joy?

Hi, Dave if you have changed your fuel delivery system, air filter size or flow rate, mufflers or exhaust system or a significant change in altitude your carburetors need re-tuning and if your fuel system (gas tank, filters, fuel valve and carburetor) is contaminated with ethanol sludge, varnish, rust, dirt, water etc. or your bike has been sitting for months or years without running these components must be "PROPERLY" cleaned and reassembled "CORRECTLY" before any adjustments can be made. Tuning your carburetor is fairly simple once you understand the basic principals. You engine is a simple airbox sucking air in and blowing it out, it is finely tuned at the factory for maximum performance once you upset that delicate balance by changing air filters, camshafts or exhaust systems your performance may go down the and the engine may run poorly, you need to compensate the air-fuel mixture in the carburetor in order for the engine to run smoothly and at peak performance. If you are running multi carburetors you need to sync them first and make sure your air cleaner element is clean and dry for paper elements or lightly oiled for foam and meshed elements and properly installed. Here is how and where you compensate trouble: "TIP" if your engine "BOGS" your not getting enough fuel.
1. Closed to 1/8 throttle is managed by the air screw and pilot/slow jet.
2. 1/8 to 1/4 throttle is managed by the air-screw, pilot/slow jet, and throttle slide.
3. 1/4 to 1/2 throttle is managed by the throttle slide and jet needle.
4. 1/2 to 3/4 throttle is managed by the jet needle, needle jet, main jet, and air jet.
5. 3/4 to wide open throttle is managed by the main jet and air jet.
6. Wide open throttle is managed by the main jet.
If you are running lean, spark plug electrode color is white, engine runs hot and feels like it is starving for fuel you need to go up on the jet size or move the c-clip down one notch. If you are running rich, spark plug color is black or dark gray, the engine runs cool, and bogs down when accelerating you need to go down on jet size or move the c-clip up one notch. When your carburetor is properly tuned for maximum performance your spark plug electrode will be a light tan color like coffee with cream. If you prefer fuel economy over performance you can go down on main jet sizes until a satisfactory level of lower performance is acceptable versus MPH, your spark plug color will be whiter and your engine will run warmer. These tuning adjustments will only make improvements if your intake and exhaust system have no air leaks or sealing issues and the entire electrical system is in proper working order and you have no mechanical issues.
For more information about your issue and valuable "FREE" downloads that you will need please click on the blue links below. Good luck and have a wonderful day.
Suzuki GS Motorcycle Illustrated Repair and Maintenance
Carburator Theory and Tuning
Suzuki GS550 Service Manual
OEM parts for Suzuki

Jun 16, 2017 | Suzuki Motorcycles

1 Answer

What type of carb air filters for 1979 gs750e suzuki?

Pleated paper. Provided you have the air box, you could use K&N separates. You will need to know how many mm's the carb throats are to order them. A lot of bikes used a single unit with 4 rubber ports, some used singles.Let how available the part/parts are and $$ be your guide. Stock units for the most part are not reusable, the K&N's are. Wash them with dish soap, dry them, re oil them and they are good to go again.

Hope that helped. Good Luck

Sep 09, 2014 | Motorcycles

1 Answer

Ls650, S40, BS40 Mikuni carburetor, I want to fit a pod filter, but bike runs all funny ,even if i take side cover off the airbox?

If you fit a pod filter, or take the lid off the air box, you are allowing more air into the engine. Therefore, you must also allow more fuel to mix with the air. To do this, you must increase the jet size in the carburator. I recommend Dyno Jet brand jet kits. They will have all the parts necessary as well as tuning guidelines to follow.

Jul 30, 2013 | 1982 Suzuki GSX 400 FS impulse

1 Answer

My bike is ruuning rich

What kind of bike and has any work or aftermarket accessories recently been done? If not, check your air filter and clean thoroughly if needed. Look for abstruction in airbox and passages to carburator. has the carburator been adjusted in any way? If not the problem is most likely a lack of air rather than excessive fuel

Mar 23, 2012 | 2002 Suzuki VS 800 Intruder

1 Answer

What is process on removing my carbs in order to clean them? I have a 82 suzuki GS550L. Pretty tight in their...

yes they are pritty tight. lol
First make sure you loosen/remove the air box mounting screws to let the airbox go as far back as it can go.
Same withe the clamps-loosen & push back.
On older bikes like yours, the rubber air boots(at the airbox side of the carbies) shrink & go hard making it harder to get the carbies out.
Once or twice I've seen them like so hard,I had to brake the rubber cause it lost ALL it's give.

If you find that the rubbers are hard- you can try pouring hot water over them to soften them or heat them with a hair-drier which will help.
Pull the carbies towards the airbox till the front of the carbies pop out- then drag to one side(usually left).
I hope my tips prove helpful.
Kind regards Andrew Porrelli

May 17, 2011 | 1982 Suzuki Gs 550 L

2 Answers

The bike hesitate and lost power since i opened the air filter. what is the reason, is that the vacuum

The carburators are tuned for the pressurization caused by the ram air system. When you open the airbox, you lose that ram air effect and your engine runs rich, causing the poor performance. Put the cover back on and make sure it is secure and sealed. Your bike was designed to have the airbox pressurized and will lose horsepower and fuel economy if you take that away. If you want more air to the engine, replace the factory filter with a K&N filter.

Hope this helps,

Oct 19, 2009 | 2005 Yamaha YZF 600 R thunder cat

2 Answers

Suzuki gs550l flot height

not sure on the exact specs but flip the carb upside down and look how the floats look to the horizon of the earth. Sounds silly but that is how pretty much all bike mechanics set them, just make them level to the earth. Good luck

Oct 14, 2009 | 1981 Suzuki Gs 550 L

1 Answer

Removed airbox and put canister type filters on carburators but bike does not run properly what can i do

when you upgrade the air filters it messes up the air/fuel ratio. All it needs are the carbs readjusted

Jun 24, 2009 | 2000 Honda VT 1100 C3 Shadow Aero

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