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Left petcock on the priming setting on. 1972 Suzuki GS 550. Some gas leaked out carbs during 4 hour period. did I do any damage ? first 2 stroke, no manual, thought it was off position.

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Peobably not but to sure trun the ebgine over slowly to ensure that there is no fuel in the crankcase or on top of the pistons
removing plugs will help with this
IF the float , needle and seat are operating correctly , there should be no problems

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1 Answer

No vacuum from carb to open petcock on tank to allow gas ti come forth

Does it run ok with the petcock in the Prime position? (Pointing backward)

Oct 04, 2012 | 1980 Suzuki GS 750 E

1 Answer

No fuel getting to carbs

If you have a vacuum operated fuel petcock, it should also have a "prime" position. That should let the fuel flow without vacuum from the engine. If this solves your fuel starvation problem, I would double-check to see whether the the replacement petcock gasket(s) may have shifted just enough to block some little pinhole that's required for vacuum equalization. That has happened to me--the replacement gaskets aren't exactly the same as what was originally in there.
You can also test the vacuum release of the fuel petcock without taking anything apart. Put a mity-vac (a hand-pumped vacuum pump) on the vac line to the fuel petcock and see whether you can get the fuel to flow. Harbor Freight sells a cheap mity-vac type pump for under $20 when it goes on sale (which it does regularly).
Good luck!

Dec 06, 2011 | 1982 Suzuki Gs 550 L

1 Answer

I have a 1981 Suzuki GS 550, the battery is good and the carbs have been cleaned a little over a month ago usually start the bike a few times a week. I went to start the bike today and it has been a week...

Check to make sure the battery is fully charged and that the fuses are all good. If you push the starter button and the solenoid clicks, the button is good. Take a wire and jump the two posts on the solenoid or touch the two cables together, if your starter works, then you need a new solenoid. If you hold the starter button and tap on the starter with a plastic hammer and the starter works you need new starter brushes. Anything else wrong with the starter and you need to replace the starter assembly , unless the manufacturer sells replacement parts so you can repair the starter. most manufacturers only sell replacement starter brushes. Leaving the fuel petcock only greatens the risk you might flood the engine with gas. It should not affect the action of the starter motor. The prime set up on the fuel petcock allows you to fill the carburetors with gas before you actually turn the engine over. In the run position the fuel petcock only supplies gasoline the carburetors when there is vacuum present in the manifolds.

Nov 11, 2010 | 1981 Suzuki GS 750 L

1 Answer

82 gs 550 two nipples on petcock and one nipple on pump .......hose on front side of carb i believe is vaccuum and hose on middle back side of carb rail is inlet ..i think but the nipple on the little...

is there one bigger then the other on the nipples. If so the one bigger is for the carb fuel and the little one should run down the left carb, betewwn the front of the carb and the carb mount.

Sep 20, 2010 | 1980 Suzuki Gs 550 L

2 Answers

How do i adjust or tune up my carb on a 1985 suzuki gs 550 l runs but the has to be choked out

If it is running like that with new fuel the problem could be plugged idle jet circuits. The carburetors will have to be removed, opened and cleaned. You will need compressed air for this job. Good idea to replace all 'O'rings inside carb at this time.

Aug 22, 2010 | 1984 Suzuki Gs 550 L

1 Answer

Have a 1980 suzuki gs550l w/o tank, got a new tank but dont know which lines go together theres four lines on the carb

there is a small port on top of the second carb on the right, that goes to the small port on the fuel petcock mounted to the tank. The main fuel supply (larger port on tank) goes to the bottom fuel supply rail with the only carb port on that rail. The upper two ports between #1 & #2 carb and between #3 & #4 carbs are vents and those hoses get plumbed down under the air cleaner, careful not to pinch the vent hoses or the bowls will not fill up with gas. This is the same for an automatic petcock or a manual one.

Aug 15, 2010 | 1980 Suzuki Gs 550 L

1 Answer

My gas has been leaking trough a part of all 4 carbs into the air box

Sounds like the floats in your carbs a stuck. Drain carb bowl, remove and clean with carb cleaner. Be careful with the gaskets, they are tough, gentle. Reassemble, turn gas back on.

Mar 24, 2010 | 1983 Suzuki Gs 550 L

1 Answer

The fuel lines pulled out of my 1978 GS550 when I was replacing the clutch cable. I need help hooking them back in the right places. I don't know which are fuel lines and which are vacuum and how they...

You will have two lines coming from the petcock on the bottom of the gas tank. the small one goes to the front of the number one carb, and the larger one plugs onto the fuel rail in the middle of the 4 carbs on the back. The lines that run between the 1 and 2 carbs and the 3and 4 carbs are just overflow lines, so they don't hook on anywhere else.

Jul 13, 2009 | 1980 Suzuki Gs 550 L

1 Answer

Leaks gas

the needle and seat in the carb isn't seating. First, shut off the petcock, and drain the fuel bowls with the screw on the bottom of the bowls. Let all the gas drain out of the bowls.Tap lightly on the carb with a small hammer, the refill the carbs, see if it still leaks. if it does, you need to pull the bowls off, remove the float and clean out the needle and seat, and put it back together

Jun 10, 2009 | 1980 Suzuki Gs 550 L

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