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Why is my 4.0 crafrtsman lawnmower flooding gas into my airfilter

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Float is sticking in the carb. Pull carb clean holes with paper clip put back together.

Posted on Jul 20, 2009


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1 Answer

Lawnmower leaks fuel from carb

It sounds as though your float and needle are stuck open or not closing properly, thus flooding with fuel. However it is hard to give exact fix/problem without a model number of the engine to be able to see the specs and design of the carb.

Aug 27, 2014 | Garden

1 Answer

Hi would like to know if anyone could help on small four stroke enjin it starts only if the air filter is off if you put the filter on it stops immediately what could be the problem? Thanks in advance

Hi taliks_mayet
Your airfilter is plugged up, change the filter.
If that does not help, then try to re-adjust the high speed fuel jet because it is flooding out your engine with gas.
Please rate me

Oct 03, 2012 | Garden

1 Answer

Riding lawnmower turns over but will not start start

Could be several different things causing your problem. As a mechanic i've learned to never assume anyone has checked the obvious. So, since you didn't state what you may have checked:
1: Check to make sure you have gas in the gas tank
2: Check to make sure the spark plug wire is still pluged to the spark plug.
3: Check to make sure the fuel shut off valve on gas line going from tank to engine is in the fully open position. You may even want to remove the fuel line from the tank (putting a bucket below the valve to catch the leaking gas) and observe the flow. If it looks like it is coming out quickly, then I would guess that is not the problem.
4: Check the fuel filter in the same manner as above. Locate the fuel filter and remove the fuel line on the side of the fuel filter that is closer to the engine than gas tank. You should observe a similar fuel flow from the line as from the fuel shut off valve, if not, replace the fuel filter. They are cheap, so can't hurt to replace it if you are in doubt.
5: Check airfilter to be sure that it isn't clogged full causing the engine to draw in to much fuel and flood the engine.
6: Remove sparkplug (usually either a 3/4" socket or 13/16" socket and ratchet will remove it) and inspect the plug. If the spark plug has a lot of black soot between the electrodes then it is fouled out and needs to be cleaned, it could also be bad and need replacing. They are cheap and easy to replace, so in my humble opinion, when in doubt replace the spark plug. If the spark plug has a lot of fuel smell and it is wet, then the plug is either bad or choke is stuck in the closed position (or some call it the on position) or possibly the airfilter is clogged. If you checked the air filter earlier, and it is clean, then check the linkage for the choke to see if it is stuck in the closed or on position. To check it, remove the air filter and look down the large hold in the center and you should see a metal vane in an upright position for the choke to be in the open or off position. If the spark plug isn't fouled out or bad, or its new, and the plug isn't wet, then proceed to #7
7: Now that you have checked all of these simple things, you will need to give more information or take the mower to the local lawnmower shop and have it worked on by a reputable technician.

Sep 15, 2012 | Garden

1 Answer

Ariens 21in classic is not starting, airfilter was drenched in gas and acts flooded, how can i fix that?

maybe it is drenched with fuel the needle and seats are having a hard time in the carbs sitting in the newer fuel we now have

Jun 09, 2012 | Ariens 21 In Classic Walk Behind Push Lawn...

1 Answer

Lawnmower wont start

check your sparkplug clean or replace, also crank it several times without sparkplug in it to blow out the cylinder, did you have it on it's side for anything?

Jun 05, 2010 | Toro Lawnmower 20099 Mower Mowers Lawn

1 Answer

Dirty airfilter, car will not start

If you took out the filter and it's dirty you can't see light thru it replace it. As far as not starting unless the air filter is now a solid block of dirt it should start, if the engine is fuel injected you must not touch the gas pedal while starting the engine or you will flood it.If it's flooded assuming you replaced the filter. Push the gas pedal to the floor hold it there while starting, after the engine starts remove your foot from the pedal to avoid engine overreving. This should fix the problem. Air filters should be changed every 12 months if you drive in dusty condtitions sooner the better

May 27, 2010 | 2003 Nissan Altima

1 Answer

It starts and dies

if it starts then its gettin fuel,but it might not be gettin enough.or it might be gettin too much. after it starts and dies remove spark plug, if its wet then the saw is flooding out, try cleaning the plug and airfilter,u can also add some seafoam to the gas,it will help clean any dirt out of carb. if that dont help check the carbs diaphram

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1 Answer

My victa statesman lawnmower turns over then dies

first thing to do is take gas tank off and clean it good, remove gas line & blow out. you must remove carb. & give it a good cleaning, blow out all passages, you may need a new carb. kit.

Dec 14, 2009 | Garden

1 Answer

Engine sputters and revs up and down as you push or pull it.

Hi Jim,
Does your carb have a priming bulb? If it doue, it sounds like you have a tear in the diaphragm on the carb. Check for small tear, holes or rips in it. Hope this helps.

Jul 07, 2009 | Garden

2 Answers

Troy built 6 75 hp lawnmower will not stay on I start it but it will quickly turnoff''

on the bottom of the carb. is a bolt that holds the float bowl on. remove that bolt and float bowl. use a small needle and stick it in the holes on the bolt to clean them out. look at the gas in the float bowl to make sure there is no water in the fuel tank .

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