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r_bob1 · Feb 28, 2007, 06:22 AM

I have BS 14 HP with a float type carb. I know the needle is sticking and flooding the engine/ oil/ ground with gas! I have ordered the new needle valve and seat. My question is how do I get the seat out? Does anyone have any information about how to remove one? Help please... Mower parked in front of house/ Wife parked on my rear! ;)

R_BOB

mr.yet · Feb 28, 2007, 06:29 AM

The needle seat is threaded, find a screwdriver that is flat that will go into the hole after you unscrew the needle valve.

r_bob1 · Feb 28, 2007, 06:58 AM

The needle valve I am speaking about is the one controlled by the float. It is loose and the float pushes it up and down. Is that the one you mean? Thank you.

mr.yet · Feb 28, 2007, 07:04 AM

That is the one the controls the inlet of fuel, the needle seat is the one in the center when you remove the bowl from the carb.

The float needle seat should unscrew as well, you have to have a screwdriver that will cover both side in the slot to remove it.

You can try a gum-cutter spray that would remove the gum and varnish build-up in the seat and needle. Make should the float sit level when done.

r_bob1 · Feb 28, 2007, 07:06 AM

Thank you... that will help. I am going to get on it this weekend.
R_BOB

newaukumdon · Feb 28, 2007, 10:47 AM

Either the needle has a rubber tip and the seat is metal, or the seat is rubber and the needle is steel. The rubber is the servicable item. If the seat is rubber used compressed air. If the seat is steel it is pressed in and I do not recommend digging it out, the rubber portion is the failed component in a needle and seat combo.

Check your float, they will sit in the chamber and if water is in the carb come winter it freezes the water and crushes the float. If the float looks good shake it and listen for fluid, you can also just see if it floats.

Good Luck,
Don

r_bob1 · Mar 3, 2007, 10:48 AM

Ok I got the seat and needle as newaukumdon mentioned there is a rubber tip on the needle so I replaced it forgoing replacing the seat but I still have the problem. I took the float out and held it underwater to see if it has a leak. It seems OK!? I am really stuck! I don't know where to go from here. What do you think; try the float, pull the carb and look at the seat? Or is it something I am missing? Thanks for your help...
r_bob

Oh yea, that is my post about the starter. It was locked with fuel after I replaced the needle. It gave me a scare!

newaukumdon · Mar 3, 2007, 11:09 AM

Is the float white? It may be made of a solid poly corrugated material. They will sink and not seem as if they are bad. Other than that I have had almost no failure on the seats. The float level should be parallel with the carb body if this is off it may flood as well.

I have had the problem you describe because of debris, after replacing needle and float come to find out more cr** from the tank was causing the needle to leak.

I will sometimes hold the carburetor upside down, hook a hose to the fuel inlet side of the carb and gently blow into carb to see if it leaks past needle, if it doesn't then it is more than likely a float.
Hope this works
Don

r_bob1 · Mar 4, 2007, 05:09 AM

The float is white to off white looks like it is polly-plastic. One more thing, I can't rember if I told you guys, I did get the mower started after I replaced the needle. It ran like champ. I shut down to change the oil (yet again) That is when I smelled the fuel. So your idea of the problem being trash in the line sounds good. So you don't think the float is the problem? As I said it floats and when I hold it under no leaks I could see... Again thank you for all your help!

newaukumdon · Mar 4, 2007, 12:04 PM

You can try cleaning the system, in the shop it is just as easy to replace the float. In your case if you want to try it again without replacing float nothing wasted but time and more oil.

If you can locate a new float do it because floating in water is not a accurate test. Leave it in a can of gasoline overnight in a well ventilated area or outside. And that would work... but again it probably only costs 10.00
Don

r_bob1 · Mar 7, 2007, 08:20 AM

Don, thanks I will give those ideas a try.

r_bob1 · Mar 11, 2007, 12:26 PM

I still am having the fuel flood over into the oil. I have replaced the needle and float, cleaned the carb/ fuel system. When I crank it up it runs fine then it will stutter and smoke just a second (black/blue thin smoke) run fine again - repeat. If I let it sit for more than five or so min. the fuel will be back in the oil. Any other Ideas? HELP!

newaukumdon · Mar 11, 2007, 04:04 PM

The only way for fuel to enter the crankcase is through the carburetor. Another problem bould be not venting the fuel tank, try it without the fuel cap.

Also if the diaphragm in the fuel pump is bad the fuel could enter through there. I have never seen it happen, I have sold lots of pumps to people improperly diagnosing fuel delivery problems. It is always the first thing thought of and the last to fail.

Don

r_bob1 · Mar 11, 2007, 07:13 PM

Don the gas cap is rusty and old I will give that a shot next... Thank you!

newaukumdon · Mar 11, 2007, 07:27 PM

I did forget to ask about air filter, is it clean and dry? Try running without it. Fuel can soak it and it may look good but will choke the engine out.

Don