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Repair and troubleshooting information for the Suzuki FA50 Moped.

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Drain nipple under carburetor leaks gas when throttle is turned.

When I turn the throttle my drain valve leaks gas at a tremendous rate. I've tried plugging it, but all that seems to do is cause my carb to become flooded.

What could be causing this...I've gone through a full tank of gas in less than half a mile. Also what house is the nipple next to the main fuel line for?

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Having the same problem

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Nick, The only thing on the bottom of the carb should be the drain plug and the overflow. That is a drain plug, with an O-ring that seals the bowl. Take a look at the attached image and see if that is what leaks. The part number for that is 13278-02340 and it is readily available. The fuelcock assembly should not be supplying fuel in all positions. It is possible that the membrane/gasket on the inside is leaking by. I definitely would replace it. The part number for that is 44300-02262. I suggest to download the service manual for your moped from here. Hope this helps, good luck.

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The first image is the drain screw and the second one is the overflow. Normally there is a drain hose attached to it. Now here comes the real issue. Why is your carb overflowing? Check your fuelcock. It is activated by engine vacuum, so there is no cut off required. Sometimes the fuelcock diaphragm will wear out and allow fuel to flow to the carburetor when the unit is shut down, which will cause excess fuel to dump out the overflow tube. Replace the fuelcock would be the way to go. Also, make sure that the fuel lines are properly routed. You only use the Pri to prime the carb, to let some gas into the bowl. When you want to start the engine you switch it to on. Now lets say that it is hooked up right, fuel flows into the float bowl from the gas tank. After the fuel reaches a certain level, it elevates the float and closes the needle valve though which the fuel flows. If something interferes with this, the gas level will continue to rise and will overflow out of the overflow tube. It could be a few of these like either A) your float drain valve is open, or B) your float height is wrong or C) your float needle is messed up. you may just be do for a quick carb rebuilt :-) Hope this helps out. Good Luck.

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Hey my scooter is leaking gas from the bottom out a little hole on the side of I don't no but I see a black line with springs around it going into a round metal thing at the very bottom

Sir my scooter also similar problems when I switched to reserved it starts leakage how to solve by my self ?

My wolf RX50 scooter fell over and a hose under the carburetor about 9 inches long and when I My break my gas gauge goes low and I let off and it goes back up

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It is also possible that something is interfering with the seal between the needle valve and seat. This could be foreign matter such as dirt or rust which has accumulated in the tank.

The fix for this particular problem would be to clean as much residue from the tank as possible, then disassemble the carb, cleaning both the needle valve and seat. Reassemble the carb and install a small universal fuel filter between the tank and carb. If the needle and seat assembly have not worn excessively, this should solve your problem.

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@kwikrnu absolutely right. It has been addressed in the original answer as well.

My apologies if this was a breach of etiquette. I am new to the forum.

My 93 timberwolf carburetor pours gas out of the bottom when I turn the peacock to reserve. The carburetor is a china made aftermarket.

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I took my carb off and cleaned it out. I found sand on the tip of the float needle. Got it all out and started it back up and it started leaking again. I checked the fuelcock and im assuming it's fine being that it didn't let any fuel out at all with it shut off. I'm sorta lost at this point and it's my daily driver so...lol. HELP!!

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On a cheap eBay after market VM22 works well on my bsa bantam , sorted an overflow problem cleaned gasket glue out of small hole at front of carb just under center of fixing bolt holes

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Victoria’s leaking carburetor must have exploded in that she has not been back to give a civil answer. Hopefully I am in great error.

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How do I put vacuum hoses I got a 1989 Ford Festiva 1.3L 4 speed 1 barrel carb

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My carburetor leaks gas out of the nipple on the bottom of the carburetor. But it doesn't start leaking/pumping out until I try to start the scooter. When I stop turning it over the gas stops pumping out. What could this possibly be..? What's causing this to happen. It started when I took the carburetor off to clean it because it was filthy... got that done and put back together and on the scooter and this is what I'm stuck with...

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