carb stuck, fuel in filter assembly

Bolwell PGO Gypsy 50cc 2-stroke scooter

Hello... I have a scooter which is losing fuel. I've checked everything and there is no sign of any leak from the tank to the carb, however, after running it for a short while, i noticed there is fuel present in the air filter, especially the foam seal which is soaked.

It seems the fuel is coming out of the carb where the air goes in, anyone have any ideas - its costing me a fortune in fuel (AU $3 in the last 3 days ;-))!!

Thanks in advance for any help

Rich

The carb is not regulating the amount of fuel going into it, so it overflows and goes into the carb throat...

Check for a stuck float, deteriorated or dirt contaminated Viton rubber seat where the float needle closes off the incoming fuel, etc...some have the rubber part on the tip of the needle, some have it in the seat...

Either way, if the tip can't seat, fuel will just keep flowing in and overflow the bowl, and it'll run rich and leak fuel like crazy....

If it's a newer model, you can sometimes get away with this trick:

Turn the fuel petcock off

Start the motor and let it run until it dies, emptying the fuel line

Disconnect the fuel line at the tank

Spray carb cleaner into the fuel line until it is full (watch backspray, protect your eyes and painted parts!)

Put the line back on the tank

Turn the fuel petcock back on

Start it up. It may run crappy at first, or be hard to start, that's because it's running on cleaner. Slowly raise the rpms to about half redline and drop several times. You'll feel it clear out as the cleaner burns through and fuel begins to make it's way back into the carb. A small engine like that probably sips fuel slowly, so it may take several minutes to clear the cleaner....

I say if it's newer because the carb cleaner won't hurt newer float tip seats that are a tougher rubber than the old ones. If carb cleaner makes anything worse, the part was beyond help and needed replacement anyway, as far as I'm concerned.

I've had good luck with this procedure, to fix stuck floats and tips without removing the carb....works for me about 80% of the time...

Welcome to AF Reloaded.

The original thread you posted in was over 2 years old, so I started a new thread for you. Please review AF guidelines about posting in old threads. When old threads like this are resurrected, it clogs up the forums and makes moderating difficult.

Rich