Question about Craftsman 20 Hp 42" Deck Lawn Tractor

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14hp single will not allow gas to get to the float bowl could it be the soliniod on the bottom of the bowl?

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Posted on Jun 06, 2010


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Adjust needle valve?

Sounds like a float bowl prob.... follow the gas hose from the tank to the carb.... little bowl on bottom will have 3 to 4 screws holding it on...remove carefully... the float on the inside will have a needle that plugs off the hole the gas comes through when the bowl is full then allows more gas in as it empties... yours probably has varnish( old gas) restricting the movement of that needle and not allowing gas in fast enough... clean it with emery cloth and the tube that the needle fits into with a small needle... if it is real bad soak it in straight gas line cleaner for the night... hope it helps

Nov 19, 2014 | Garden

1 Answer

Gasoline leaking

Pull the spark plug wire off the spark plug. If poss turn off the gas supply from the tank or have a container large enough to hold the gas remaining in the tank and drain tank. Small bolt or screw hold the float bowl on the carb must be removed and bowl may be a little tight so tap very gently on the bowl on one side then the other to loosen and remove bowl. Needle valve is poss being held in the open position by a small piece of dirt or rust and so the gas supply in constant and the gas is flowing out the vent.. diff mfr's diff setups. You must have patients with this float and valve removal. The float usually has a straight dowel holding it allowing it to pivot so to push up to close and down open the valve. gently remove the pin dowel and the float and needle will be free. You can then lower the float and needle. Be careful not to lose the spring of any parts. The parts are small. Better look long and or take a macro pic to remember how it all looks before you take apart. A small copper wire pushed up through the hole where the needle came from will usually dislodge the dirt. Or spray carb cleaner and allow the obstruction to drip out of the valve seat. Reassemble by placing the needle valve and float back into their rightful places. Check the movement very gently up and down. The closing of the valve takes VERY little pressure and you must never push with force. The float lever touching the bottom of the needle can bend or break. This is calibrated to the gas level required for normal ops. Now look at the inside of the bowl. Make sure there is no dirt of build up that will later come loose and cause this prob again. Carb cleaner works well with a rag to clean the bowl inside and out. Clean the outside edge and area so as not to push dirt inside the bowl when reinstalling the bowl. if there is a diff in height to the bowl then the short or shallow portion will be placed at the hinge point of the float. This will allow the float to drop to the open position and allow more fuel to enter the bowl. Snug the bowl securing bolt and make sure the oring or gasket was still in tact with the bolt and bottom of the bowl. reattach the gas line and pour a small amount of gas in the tank just to get the unit started and not so much incase the leakage is still there. Place the plug wire back on the spark plug and try it out. ALWAYS remember gasoline is very flammable and so be sure no sparks or flames are near. I advise doing this outside the garage and have a fire extinguisher very close because fire with gasoline get out of control Very quickly. Nitrile gloves are a wonderful thing too when working with gasoline too. Good Day!

Nov 08, 2013 | Troy-Bilt Troy - Bilt 020245 Pressure...

2 Answers

2005 Honda CRF 450 R vent hose from bottom of carb is leaking gas

Hi, Anonymous and the usual suspects are:
1. Damaged or restricted fuel tank venting system.
2. Loose float bowl screws.
3. Damaged float bowl o-ring.
4. improper fuel level in the float bowl.
5. Worn or dirty inlet valve or seat.
6. Damaged or leaking float assembly.
7. Particle contamination in inlet fitting cavity.
8. Damaged petcock diaphragm allowing fuel to flow through the vacuum line into the combustion chamber.
9. Contaminated fuel tank.
For more information about your issue and valuable "FREE" downloads that you will need please click on the blue links below. Good luck and have a wonderful day.
Fuel leaking from overflow of carb
Honda CRF450X 2005 Service Manual
Honda CRF450R Owner Manual

Jan 27, 2013 | 2005 Honda CRF 450 R

1 Answer

Float in carb.

Hi Stan,It sounds like you are missing your float needle. There is no reasonable explanation for it to disappear if the float was not removed.The float needle is typically made from aluminum with a black conical gasket tip to create the seal when the float is in the raised position to stop the flow of fuel. They are fairly inexpensive to replace. Seeing that your generator is a Powermate 5000, if it is an older unit using a Tecumseh engine you will have to be very specific with serial and model numbers, since Tecumseh has gone out of business. Replacing the float needle is fairly easy. Some carburetor bowls are formed with an uneven bottom to allow proper travel of the float and they must be re-installed in the correct orientation. If the bowl is round and completely flat on the bottom the orientation doesn't matter. After the bowl is removed the float needs to be removed also. Where the float hangs on its hinge there is a stainless steel pin that needs to be removed, some carburetors have a nub on one side that allows the pin to be removed in only one direction. A finishing nail that is smaller than the pin will push it out with little effort. On the top of the float as it would be oriented in its installed position there will be a horse shoe shaped receiver that the float needle slides into, there also might be a small spring in the replacement, be careful with this spring it is easily damaged and easily lost. The float needle is placed into the receiver on the float, then carefully take the assembly and slide the float needle into the orifice while the float is lined up to go back into its hinge. Align the float to receive the hinge pin and slide it in. Make sure that your bowl gasket is in good condition and replace the bowl keeping in mind if the bowl is formed for float swing travel. Add a little gas and check for leaks. If leaks are present the causes will be bad gaskets either on the top of the bowl or the bottom by the nut. Another cause could be that the bowl is rubbing on the float and keeping the valve open, loosen the nut and rotate the bowl until the float swings freely then re-tighten and check for leaks. Last but not least you have the wrong float needle and it is not long enough to seal correctly when the float has risen to the full position. Good Luck,Michael Burke

Nov 26, 2011 | Coleman Powermate Powermate 5000W...

1 Answer


You have to take the bowl nut off he bottom of the bowl and clean it with a small wire or torch cleaners. Try not to allow the bowl to drop off the carb, the float drops down and the needle might come off the float.

Mar 11, 2011 | Craftsman Garden

1 Answer

Left side lick gas out of one of the lines that line is at the bottom of the carb

The line that are on the bottom of carbs are your fuel over flow to the float bowl,floats may have become fuel soaked do to age makeing them heavy not allowing the float needle valve to stop the flow when the bowls are full,or the float needle valve are worn resulting in same thing,or it could just be stuck,first try to tap the bowl,just tap,to see if you can free it up,if that does not work,then you will have to rebuild/clean the carbs,and inspect,I would use rebuild kit,and new float needle valve assembly.

Mar 10, 2011 | 1979 Suzuki Gs 550 L

1 Answer

OEM Carbs have what appears to be vacuum ports on the very bottom. What are these ports for and should they be leaking fuel?

they are the float bowl drains. You use them to empty the float bowl of gas ( water, gunk, debis). there is a screw on the bottom that acts as a valve to allow gas to flow through the hose attach fitting.

Aug 25, 2010 | 1977 kawasaki Z 650

2 Answers

Lower carburetor flexible gas outline is draining and i don;t know how to fixed

sounds like your carb float is stuck and your needle and seat is open allowing the bowl to fill with gas and run out the overflow. take off the bottom bowl of carb and check to see if the float has a hole in it.

Apr 26, 2010 | RTO 200cc Full Size Four Wheeler ATV

3 Answers

Gas leaking from bottom of carb

Your info is vague; does gasoline leak when engine running or at any time? Does the engine run ok, or is the engine flooding from too rich a gas mixture ?
Most often the leak is the seal on the float bowl; either the top rim gasket or the fiber washer on the center nut/bolt. It also can be from a sticking float that is allowing the gas to continue above the normal level (just like in a toilet tank). This can happen if the float is deteriorated from moisture over the year and gas/water has gotten into the float and making it hevier than normal (thus changing the level at which hte float actually floats and stops the inflow of gas. Also , the needle that the float pushes to stop gas can stick open or closed.
Most of this work can be done without renoving carb from engine but it requires a bit more dexterity to work on it while attached. Goodluck, Macgivor

Oct 24, 2009 | Ariens Garden

1 Answer

Mowers is not getting gas

Check your float ... it might be sticking in the upward position when the fuel well fully fills? This would cause the mower to run on the fuel that gets inside the line when you prime it, but since the float stuck in the upward position would close the intake line from the gas tank, your mower would die after the priming fuel is spent.
[The float is located inside the metal bowl beneath the carburator usually, and can be opened by removing a single bolt/screw in the center of the bottom of the bowl. Be careful to pay attention to how the valve-pin attached to the float is attached; usually it's just hooked on very loosely. Thouroughly clean the float, pin & inside of the bowl, then reassemble after making sure the float moves freely.] If the problem isn't solved by this, you might have an obstruction (like a leaf-cutter wasp nest) in your fuel line between the gas tank & carburator? Check the float first.

Apr 11, 2009 | Mtd 22" Yard Machine Push Mower

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