Question about 1991 Suzuki GSX 600 F (Katana)

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Where dose the vacuum pipe connect to from the fuel tap.

I have a 1991 Suzuki GSX600F and on the fuel tap it has 3 outlets. I know the two larger ones are the fuel and the smaller is the vacuum. I cant seem to find where the vacuum pipe connects to from the fuel tap. Dose it connect to the engine, the carburetor or somewhere else? I have a Haynes Manuel but it dose not show it for some reason. Any help would be gratefully received. Thanks.

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Connects to the intake manifold

Posted on Feb 19, 2009

Testimonial: "Bit late but thanks... I did find out that it can be connected to one of the vacuum fittings on top of any of the carbs as well.. The ones you use to balance the carbs as long as others are blocked off as normal..."


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If you are in a location with high humidity there is a chance water built up inside the tank. Best solution would be to completely drain the tank and refill with new gas. Run position on the fuel tap is 6 o'clock.

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Vacuum pipe

yes that is definatly the vacuum pipe that should be connected to the fuel tap you will find there is a smaller part on the tape for it to go on you will most likely have to get the tank close to to reconnect it unless you can get your hand under to refit it

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Fuel in/out at ends, the pipes should only reach to the correct ends. The IN pipe connects to the end toward front of the bike , OUT toward the back heading to carb.
A small connection on the back for the vacuum pipe from the carb.

This pump only spits the fuel along rather feabley, also check the gause on the fuel tap. When bleeding, remove the fuel pipe from the carb and blow into the tank in order to force the fuel through the pipes until all air is removed.

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