Question about Craftsman 21 Hp 42" Deck, Ys 4500 Lawn Tractor

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Starts with starter fluid in carb, but as soon as that burns, it quits. New plugs and new gas. Gas coming through fuel filter.

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6ya6ya
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Posted on Jan 02, 2017

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trippssmengi
  • 76 Answers

SOURCE: tecumseh 9hp craftsman snowblower will not stay running

First take the carb off of the engine and then remove the bowl, carefully take the float off paying special attention to the needle and how it is attached to the float. Next, lightly blow air into the fuel inlet while holding your finger over the spot where the needle goes in. Use a bread tie with the paper scraped off. Stick the wire through the pick up tube at the bottom of the carb. Find any other holes and probe those holes with the wire. Then thoroughly wash the entire carb with carb cleaner then blow the whole carb off. Then put the float and needle back in making sure that when putting the bowl back on that it seats tightly all the way around the rubber gasket. Also, just before you put the bowl on turn the carb upside down to see if the float is sitting level. If it is put the bowl on, If not then the spot where the needle sits on the float has to be bent one way or the other just a little until the float sits level. After the bowl is put in place, the nut that holds the bowl on the threaded area should have two possibly three holes plus the hole down the center, probe all holes with the wire. put everything back on the motor and try again. If it still won't run then you will need a carb kit.

Posted on Dec 27, 2008

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SOURCE: gas not getting to carb. Blew out all lines gas, new gas filter

fuel line cracked in shroud just fixed one just like it check fuel line from filter to carb

Posted on Apr 08, 2009

  • 376 Answers

SOURCE: not getting enough gas to the carb have to run choke 3/4 engaged

Sounds like a restriction in your carb, not getting enough gas. I would clean out the carb again.

Posted on May 23, 2009

wadembly
  • 475 Answers

SOURCE: Craftsman 917.270662 starts with starter fluid but won't stay run

the float in the carburator is stuck shut not opening alowing fuel to enter engine

Posted on Jun 08, 2009

  • 1 Answer

SOURCE: craftsman lt 1000 wont stay running

Take a paperclip and clean out the small hole on your gas cap. And yes I am being serious.

Posted on Aug 25, 2009

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Engine won't stay running - only will start with starting fluid.


VERY COMMON problem with gas engines.

I recommend starting all your gasoline using machine ever month or two. Let them run a few minutes. Same with cars/trucks.

Start you r car/truck every couple months and drive forward and backward several feet as well.

If you have a gas shutoff valve, turn it off and run engine till all gas is out of carb before storing.

Gas turns to a hard lacquer is sitting too long. remove air cleaner covers, Pour some real good (strong/thorough) carb cleaner in carb and leave sit over nite. If that doesn't work, do it another nite. If not working yet, you may have to take carb off and open it up. Be careful there are little tiny parts in there.

Apr 03, 2016 | Garden

1 Answer

Motor quit put new gas, charged battery, checked oil still does not turn over- prior to this the engine would backfire prior to starting- I have checked connections-


Does not turn over or does not start? Does not turn over usually means a bad battery or starter. Or connections which you have already checked. There may be a fuse block or inline fuse as well. Does it have a manual pull start as well? Does this turn over the engine or is it siezed up, low/no oil.
Turns over but does not fire usually is spark or the fuel. Back firing would guess spark plug or carberator (air fuel mixture) If it turns over but does not fire, try putting in some Seafoam fuel system cleaner. This will get the varnish-gunking stuff out of the carb. Mix in your tank, turn over quite a bit to get it pulled into your carb bowl and into some of the carb port holes. Let it soak a while and then turn over again every so often to pull in new cleaner. If it starts at some point it will stink a little while burning the cleaner in the tank.

Make sure you have check the old fuel lines and and air vacuum lines for pin holes and cracks as well. Change the plugs. Make sure the air filter is clean. Change the fuel filter. Does it fire if you shoot starter fluid in the carb air intake, this would suggest a fuel issue, such as dirty carb, bad fuel line or fuel filter, or fuel pump.

Jan 09, 2016 | Ariens Lawn Tractor 42"" Riding Lawn Mower...

1 Answer

Cub Cadet has gas, has spark, has air -still won't start/run


Are you pulling the plug to check for wetness after cranking it a few times, WITHOUT using the starting fluid? Also, I would recommend using carb cleaner in place of the starting fluid. Starting fluid runs the engine VERY hot for a brief time and can possibly damage rings, valves, and aluminum parts.

Jun 09, 2013 | Garden

1 Answer

Chain saw will not start


sure sounds like you did it all.
Was the Plug wet with gas when you took it out to fuel it directly? I would take the plug back out, blow out or let the Cylinder totally dry. Then spray a bit of Starter fluid in the carb and see if you get life.
Old gas left in a saw is a Carburetor killer. The paper components in these carbs can not stand the new 10% ethanol gas.

Dec 06, 2012 | Husqvarna , No.455 Rancher, 20" Gas -...

1 Answer

My 1993 Chevy K1500 will not turn over


"Trying to start" is turning over, also called cranking.

remove the fuel line from the carb, disable the ignition, point the fuel line into a can or jar, then turn the engine over.

If no fuel come out, you have a fuel delivery problem.

If fuel comes out, re-attach, look down the throat of the carburetor, operate the throttle, and see if any fuel squirts out.

If not, the float might be hung up.

If fuel squirts, fuel cannot get into the air stream from the float chamber. Time for a carb rebuild.

Jul 01, 2010 | 1993 Chevrolet K1500

1 Answer

I have a craftsman Lt 1000, 17.5 hp tractor. It


Check for cracked fuel lines, plugged fuel filter, if all ok, then check fuel pump.

Mar 14, 2010 | Craftsman 24 Hp 48" Deck Yard Tractor

3 Answers

1976 f250 truck sat for 6 yrs the gas has turned orange and smells like varnish this truck has an electric fuel pump i replaced the fuel filter and tried to start it several times with starter fluid ive...


hello, usually when gas sets in carb for a long time it turns into a varnish, you will have to take carb apart and clean all jets out, even the fuel pump may be clogged up, you will probably have to rebuild carb, unless you have access to air line to blow any and all jets, pretty much all passage ways, power jets, in other words you have a carb problem, you may need a new one, unless you have a strong solvent, that will break away any varnish or gum up.

Feb 06, 2010 | 1982 Ford F 250

1 Answer

Trimmer won't stay running without starter fluid


drain any old gas/fuel mixture out of unit.
purchase new gas and mix with oil as recommended for your engine.
clean the air filter on the unit.
pull the spark plug and clean with carb spray and reinstall...

you also may need to remove the carb and clean any jets with carb spray... old gas can turn into a shellac'ish type goo and foul up the works...
I recommend draining all fuel after usage...

May 29, 2009 | Ryobi 30 Cubic Centimeter Curved Shaft Gas...

1 Answer

Coleman Powermate 5000 starts with starter fluid, but leaks gas into the air filter. Checked the float, it has no holes, and is not jammed. Fuel will go into the carburetor, but no fuel will reach the...


Sounds like you need to clean the carb ports, lines, jets, etc... purchase a carb spray cleaner with a tube to place on the spray head (Berryman's Chemtool B-12 is awesome). Take the carb loose from the generator, and remove the bowl, needle valve and spray carb cleaner thru all the holes, lines in the carb. Reinstall complete with air cleaner and retry... also if the gas is old, drain and replace with new...

May 25, 2009 | Coleman Powermate Powermate 5000W...

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