Question about Husqvarna 23 Hp 48" Deck Yard Tractor

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Engine turns over but won't start

I have gas in tank. The air filter and fuel filter have been changed. Plenty of juice from the battery. Oil in the crank.
Is there a chance the engine could be seized? When I turn the key it turns over but won't catch to start.

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  • 22 Answers

Your starter bendix is bad
a common problem
any small engine shop will have a new one

Posted on Nov 27, 2008

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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...

2 Answers

Won't start. In storageempty18 mths. Replaced oil,filter, fuel filter,spark plug, New battery. Fresh gas w/stblzr. Engine cranks but won't turn over.


Won't start. In storage empty18 mths. Replaced oil, filter, fuel filter, spark plug, New battery. Fresh gas w/stblzr. Engine cranks but won't turn over.

Without the exact engine model, I am not sure which Kohler 19 HP you have. There are different models including single cylinder with fuel pump, single cylinder without fuel pump, and multiple versions of the twin cylinder. Therefore, some parts of this answer include generalizations which may or may not be applicable.

Sooo, with the new battery the starter motor does crank the engine; the engine turns over. This informs us that the engine/bearings, has or have, not frozen up while in storage. However, I believe you are indicating that the engine does not fire up and begin running; it won't start and it won't run.

We know the machine has been in storage 18 months. Was the machine completely emptied of fuel, tank and carburetor, prior to long term storage? That is the question of the day.

I am going to assume the machine was running fine the last time it was used; prior to parking it in storage. That means we are assuming there are no mechanical problems with the engine. I am going to assume, with the installation of new plugs, you checked for spark and all is good in that area. This really leaves us with a fuel system problem.

A mechanically functional (meaning all the internal parts are working, i.e. pistons, valves, etc) engine requires 3 things all at the right time, air under pressure (yes they call that compression), fuel, spark. So the quickest way to start your diagnostics is to remove the cover over the air filter and then remove the air filter. I do not recommend spraying Quick Start.

  1. remove air filter (set it aside for the rest of the diagnostics)
  2. put throttle on fast run (do not choke)
  3. pour an ounce or two (a shot glass, not ½ a beer) of fresh gas into the carburetor
  4. crank engine (15 to 20 seconds, rest to cool the starter, repeat 3-4 times if it does not fire at first).
Removing the air filter and placing the throttle at full speed, with no choke, eliminates the "air intake" question for now. Dumping in the fuel bypasses the fuel related question.

  • ·If the engine fires and runs a bit, then dies, you may have eliminated the spark question and you need to track down any fuel problems.
  • ·If the engine does not fire you likely must tract down a Spark problem.
I understand that you filled the tank with fresh fuel.That is step one, of 7-10 possible steps for getting fuel to the engine. Which brings us tooo..

  • Tracking down fuel problems.
  1. Make sure there is plenty of fresh fuel in tank. High Octane less than one month old. Water in the fuel system will often cause hard starting, low power, backfiring, surging or stalling. Was your tank clean and dry?
  2. Is there a cut off valve at the gas tank? If so check that it is open or working if it is electric.
  3. This step comes from repeated personal experience with JD gas tanks. Remove fuel line from filter and remove the filter, gas should pour out of the hose coming from the tank. (look at the filter before removing it, it should look ¾ full of fuel. If it's not that's a clue to fuel flow problems.) If gas does not pour out remove gas tank cap. If fuel flows now, you need to unclog the cap vent or replace the cap. The vent is that tinnnny little hole in the center of the cap. If the fuel still does not flow then blow air from the filter end of the hose back up through fuel line to blow out any blockage inside the gas tank.

    Do yourself a favor, leave the gas cap off and turn the outlet air on your compressor down below 20 psi. If the tank is nearly full you will blow gas out of the tank. Do this outside if possible; at the very least you need a well ventilated area. After blowing air from the air filter back to the tank, you may have to reverse the process and pressurize the tank to get the fuel started. I place my hand over the open tank and hold the air hose between the joint of my thumb and forefinger to seal the tank, and then squeeze the trigger. Once you have a good fuel flow out the line to the filter, reinstall your FRESH FILTER. Try cranking the engine. If it still does not start move on to the fuel pump and carburetor
  4. Check the fuel pump. The fuel pump system on the twin Koehler and the Twin Briggs are almost identical. This includes most single cylinder engines with fuel pumps. Watch this excellent, eight minute, video to learn how to check the fuel system, including the pump, up to the carburetor. . https://www.youtube.com/watch?v=HAUZUPoopSI
  5. Note: My engine was starting hard and dying in the field this year (March 2015). While doing a valve adjustment, I found a hairline crack in the bend of the vacuum hose powering the fuel pump. It's the short hose running from the valve cover to the fuel pump. The fuel pump will not work if this hose is cracked.
  6. Note: If your engine has a vacuum operated fuel pump it requires crankcase vacuum to drive it. A Reed Valve creates this vacuum. If your reed valve is stuck, broken, or just worn out you will not have a functional fuel pump; even if you buy a new one. If your fuel pump is not working, you must verify crankcase vacuum before buying a new pump.
  7. Most, if not all, fuel systems now have a Fuel Shut Off Solenoid. This is a small cylinder on the bottom of the carburetor (with two wires running to it). The fuel shut off solenoid's main function is to stop fuel from flowing into the carburetor. It does this for various reasons
  • You turn the key off.
  • You put the mower in reverse while the blades are turning.
  • You blow the main fuse due to electrical malfunctions.
Diagnosing the Fuel Shut Off valve:
  • Assuming the battery is good and fully charged
  • Assuming the Key Switch is working.
When you sit in the seat and turn the key, one click from off to run, you will hear a faint click. That faint click is the fuel shut off valve under the carburetor. It is turning on and off when you cycle the key from off to run. If you hear this click your fuel solenoid is functioning electronically. It could still be experiencing issues inside the carburetor. Perhaps there is some varnish, silt or other trash keeping it from working. If this solenoid is not working, you will get no fuel into the carburetor, even if the pump is working. This will require a physical examination of the solenoid and perhaps the entire carburetor.

The following is an "out of carburetor" electrical check up.
  1. Remove the Solenoid.
  2. Connect one jumper wire from a terminal to the positive battery post.
  3. Connect a second wire from a terminal to the negative battery post. The solenoid should retract.
  4. Remove one jumper; the solenoid should spring back out.
If none of this solves your fuel problem you may have to remove and disassemble, clean, soak overnight in carb cleaner, or rebuild the carburetor at this point. You may have water, dried fuel (varnish) or trash in the carburetor bowl or jets. Before removing and disassembling the carburetor try draining the bowl. Or, take the bowl off, careful not to drop the small parts inside. Clean the bowl and replace. I often remove the bowl on small engines and find all kinds of built up gunk. This saves the hassle of a complete carb removal, sometimes.
What else could make the Fuel Cut Off malfunction??
Connect a volt meter across the two battery posts. If battery voltage drops below 9 volts when cranking or while the engine is running, the fuel cut off solenoid will not function. That means the engine will not start or will die soon after starting. So check your battery voltage before, during, and after cranking. If the battery voltage is good before but drops below 9 volts while cranking this is generally a sign the battery has one or more bad cells. Replace the battery. If the battery is in fact good, and the voltage is still dropping, you may have a bad starter motor which is drawing too much amperage.

If you find this fuel checkup does not solve the problem, repost your question with updated info (exact engine model) and I will walk you through the next step. Tracking down a spark problem; yes, your problem could involve the coil, coil wire and spark plug.
Small Engine Repair Checking Vacuum Fuel Pump Fuel System on Kohler Twin...

Apr 19, 2015 | Ariens 42 in. 19 HP Kohler Hydrostatic...

2 Answers

Gas will not flow from tank to filter


Check for a fuel shutoff valve in the fuel line. Many manufacturers have them to allow the users to run the carburetors empty at the end of the mowing season. It is easy to forget about.

Apr 11, 2015 | Garden

1 Answer

Have a 2011 Kubota L3800 that has only 90 hours. Went and started it up today, it ran for about two minutes and died. Any ideas?


Tracking down fuel problems.
  1. Make sure there is plenty of fresh fuel in tank. High Octane less than one month old. Water in the fuel system will often cause hard starting, low power, backfiring, surging or stalling
  2. Is there a cut off valve at the gas tank?If so check that it is open or working if it is electric.
  3. This step comes from repeated personal experience with JD gas tanks. Remove fuel line from filter and remove the filter, gas should pour out of the hose coming from the tank. (look at the filter before removing it, it should look at least 1/2 full of fuel.) If gas does not pour out remove gas tank cap. If fuel flows now, you need to unclog the cap vent or replace the cap. The vent is that tinnnny little hole in the center of the cap. If the fuel still does not flow then blow air from the filter end of the hose back up through fuel line to blow out any blockage inside the gas tank.

    Do your self a favor, leave the gas cap off and turn the outlet air on your compressor down below 20 psi. If the tank is nearly full you will blow gas out of the tank.Do this outside if possible; at the very least you need a well ventilated area. After blowing air from the air filter back to the tank, you may have to reverse the process and pressurize the tank to get the fuel started.I place my hand over the open tank and hold the air hose between the joint of my thumb and forefinger to seal the tank, and then squeeze the trigger.Once you have a good fuel flow out the line to the filter, put on a FRESH FILTER. Try cranking the engine. If it still does not start move on to the fuel pump and carburetor
  4. Check the fuel pump.The fuel pump system on the twin Koehler and the Twin Briggs (and others) are almost identical. Watch this excellent, eight minute, video to learn how to check the fuel system, including the pump, up to the carburetor. . https://www.youtube.com/watch?v=HAUZUPoopSI
  5. Note: My engine was starting hard and dying in the field this year (March 2015).While doing a valve adjustment, I found a hairline crack in the bend of the vacuum hose powering the fuel pump.It's the short hose running from the valve cover to the fuel pump. The fuel pump will not work if this hose is cracked.
  6. Many systems have a fuel shut off solenoid. This is a small cylinder on the bottom of the carburetor. It has two wires running to it. It should make an audible click when you turn the key on. If it does not click you will have to replace it or track down an electrical problem.
  7. If this has not solved the problem you may have to remove and disassemble, clean, or rebuild the carburetor at this point.You may have water, dried fuel (varnish) or trash in the carburetor bowl.Before removing and disassembling the carburetor try draining the bowl.Or, take the bowl off, careful not to drop the small parts inside.Clean the bowl and replace.I often remove the bowl on small engines and save the hassle of a complete carb removal.

NOTE: Connect a volt meter across the two battery posts. If battery voltage drops below 9 volts when cranking or while the engine is running, the fuel cut off solenoid will not function. That means the engine will not start or will die soon after starting. So check your battery voltage before, during, and after cranking. If the battery voltage is good before but drops below 9 volts while cranking this is generally a sign the battery has one or more bad cells. Replace the battery. If the battery is in fact good, and the voltage is still dropping, you may have a bad starter motor which is drawing too much amperage.
If you find this fuel checkup does not solve the problem, repost your question with updated info and I will walk you through the next step.Tracking down a spark problem; yes, your problem could involve the coil. (Not as likely as fuel)
Small Engine Repair Checking Vacuum Fuel Pump Fuel System on Kohler Twin...

Apr 06, 2015 | Kubota Garden

1 Answer

We have charged the battery because it was dead but now that it's charged it turn on but not start. Does that indicate a dead battery even though it sounds like it wants to start?


Your post leaves me a bit in the dark. For a more specific, and possibly shorter, answers please include the following Make/Model/Year/Engine Model/Deck Size, and hours on meter if you have one. A short description of the events preceding the beginning of the problem is also helpful.

The battery was dead and needed charging? Did it sit over winter? Run down while starting? Or did it just go dead while you were last mowing? Each of these possibilities leads us down a different path.

Now that it's charged and it sounds like it wants to start, I am guessing the engine is turning over (cranking)? If it's cranking lets assume the following. Let's say you have less than 300 hours on the engine. Let's further assume it worked last summer, or last week, but now it's acting up. Let's also verify the battery is in good shape and fully charged.

A mechanically functional (meaning all the internal parts are working, i.e. pistons, valves, etc) engine requires 3 things, air, fuel, spark. So the quickest way to start your diagnostics is to remove the cover over the air filter and then remove the air filter. I do not recommend spraying Quick Start.
  1. remove air filter (set it aside for the rest of the diagnostics)
  2. put throttle on fast run (do not choke)
  3. pour an ounce or two of fresh gas into the carburetor
  4. crank engine (15 to 20 seconds, rest to cool the starter, repeat 3 times if it does not fire at first).
Removing the air filter and placing the throttle at full speed with no choke eliminates the "air" question for now. Dumping in the fuel bypassed all fuel related questions. What's left? Spark. If the engine fires and runs a bit, then dies, you may have eliminated the spark question. The engine started so Spark and Air are good (for now); you need to track down any fuel problems.

If the engine does not fire, you after eliminating the Fuel questions; you must tract down a Spark problem.

Tracking down fuel problems.
  1. Make sure there is plenty of fresh fuel in tank. High Octane less than one month old. Water in the fuel system will often cause hard starting, low power, backfiring, surging or stalling
  2. Is there a cut off valve at the gas tank?If so check that it is open or working if it is electric. (No cut off at tank on the D140)
  3. This step comes from repeated personal experience with JD gas tanks. Remove fuel line from filter and remove the filter, gas should pour out of the hose coming from the tank. (look at the filter before removing it, it should look ¾ full of fuel. If it's not that's a clue to fuel flow problems.) If gas does not pour out remove gas tank cap. If fuel flows now, you need to unclog the cap vent or replace the cap. The vent is that tinnnny little hole in the center of the cap. If the fuel still does not flow then blow air from the filter end of the hose back up through fuel line to blow out any blockage inside the gas tank.

    Do yourself a favor, leave the gas cap off and turn the outlet air on your compressor down below 20 psi. If the tank is nearly full you will blow gas out of the tank. Do this outside if possible; at the very least you need a well ventilated area. After blowing air from the air filter back to the tank, you may have to reverse the process and pressurize the tank to get the fuel started. I place my hand over the open tank and hold the air hose between the joint of my thumb and forefinger to seal the tank, and then squeeze the trigger. Once you have a good fuel flow out the line to the filter, put on a FRESH FILTER. Try cranking the engine. If it still does not start move on to the fuel pump and carburetor
  4. Check the fuel pump.The fuel pump system on the twin Koehler and the Twin Briggs (and others) are almost identical. Watch this excellent, eight minute, video to learn how to check the fuel system, including the pump, up to the carburetor. .Small Engine Repair Checking Vacuum Fuel Pump Fuel System on Kohler Twin...
  5. Note: My engine was starting hard and dying in the field this year (March 2015).While doing a valve adjustment, I found a hairline crack in the bend of the vacuum hose powering the fuel pump. It's the short hose running from the valve cover to the fuel pump. The fuel pump will not work if this hose is cracked.
  6. Many systems have a fuel shut off solenoid. This is a small cylinder on the bottom of the carburetor. It has two wires running to it. It should make an audible click when you turn the key on. If it does not click you will have to replace it or track down an electrical problem.
  7. If this has not solved the problem you may have to remove and disassemble, clean, or rebuild the carburetor at this point. You may have water, dried fuel (varnish) or trash in the carburetor bowl. Before removing and disassembling the carburetor try draining the bowl. Or, take the bowl off, careful not to drop the small parts inside. Clean the bowl and replace. I often remove the bowl on small engines and save the hassle of a complete carb removal.

NOTE: Connect a volt meter across the two battery posts. If battery voltage drops below 9 volts when cranking or while the engine is running, the fuel cut off solenoid will not function. That means the engine will not start or will die soon after starting. So check your battery voltage before, during, and after cranking. If the battery voltage is good before but drops below 9 volts while cranking this is generally a sign the battery has one or more bad cells. Replace the battery. If the battery is in fact good, and the voltage is still dropping, you may have a bad starter motor which is drawing too much amperage.

If you find this fuel checkup does not solve the problem, repost your question with updated info and I will walk you through the next step. Tracking down a spark problem; yes, your problem could involve the coil, coil wire and spark plug. Small Engine Repair Checking Vacuum Fuel Pump Fuel System on Kohler Twin...

Mar 26, 2015 | Garden

1 Answer

Cold start will run short time then die battery not strong enough to realy spin moter


Many things to consider but, let's try the simple things. You didn't say, so I am going to assume the mower is at least newish, not 30 years old. Let's say you have less than 300 hours on the engine. Let's further assume it worked last summer, or last week, but now it's acting up. Let's also verify the battery is in good shape and fully charged.

A mechanically functional (meaning all the internal parts are working, i.e. pistons, valves, etc) engine requires 3 things, air, fuel, spark. So the quickest way to start your diagnostics is to remove the cover over the air filter and then remove the air filter. I do not recommend spraying Quick Start.
  1. remove air filter
  2. put throttle on fast run (do not choke)
  3. pour an ounce or two of fresh gas into the carburetor
  4. crank engine (15 to 20 seconds, rest to cool the starter, repeat 3 times if it does not fire at first).
Removing the air filter and placing the throttle at full speed, no choke, eliminates the "air" question. Dumping in the fuel eliminated all fuel related questions. What's left? Spark. If the engine fires and runs a bit, then dies, you have eliminated the spark question. The engine started so Spark and Air are good; you have to track down a fuel problem.

If the engine does not fire, you have eliminated the Air & Fuel questions; you must tract down a Spark problem.

Tracking down fuel problems.
  1. Make sure there is plenty of fresh fuel in tank.
  2. Remove fuel line from filter and remove the filter, gas should pour out of the hose coming from the tank. If it does not, remove gas tank cap. If fuel flows now, you need to unclog the cap vent or replace the cap. If the fuel still does not flow then blow air from the filter end of the hose back up through fuel line to blow out blockage inside the gas tank. Once you have fuel flowing out the line to the filter, PUT ON A FRESH FILTER. Try cranking the engine. If it still does not start move on to the carburetor.
  3. Note: many systems have a fuel shut off solenoid. This is a small black cylinder on the bottom of the carburetor. It has two wires running to it. It should make an audible click when you turn the key on.
  4. NOTE: if battery voltage drops below 9 volts when cranking or while the engine is running, the fuel solenoid will not function. That means the engine will not start or will die soon after starting. So check your battery voltage before, during, and after cranking. If the battery voltage is good before but drops below 9 volts while cranking this is generally a sign the battery has one or more bad cells. Replace the battery. If the battery is in fact good and the voltage is still dropping you may have a bad starter motor and it is drawing to much amperage.
  5. Ck to see that the carburetor bowl is full of fuel, if not...you may have to disassemble and clean the carb at this point.
Tracking down Spark problems.
  1. verify battery fully charged.
  2. verify the fuel cutoff solenoid clicks when you turn the key switch
  3. get fresh spark plugs and verify gap
  4. install plugs and crank.Perhaps verify spark with a spark testor
If these simple steps do not solve the spark problem, you have a Spark problem that moves into the arena of complex. You will need to check coil gap and coil performance. If it still doesn't start you will need to diagnose the electrical system for wiring and safety switch problems, key switch problems, fuses, etc.

Once you get it running be sure to replace the Air Filter with a new one.

These simple steps solve most starting and running questions and problems.

Mar 10, 2015 | Garden

2 Answers

My d100 will not start


Check for good , strong spark. Take spark plug out and ground the outer core of the plug to the engine. Hold the plug with a pair of insulated pliers. Have someone crank the engine while you observe for a good strong blue spark. If the spark looks nice and bluish, then next would be to clean the carburetor. I suggest trying a "quick clean before taking the carburetor bowl off. Take spray carburetor cleaner and spray inside the carb throat with the air cleaner off. Also take about 1/2 can/bottle of fuel line injection cleaner and put it in the gas tank. Then try starting the mower. May sure the gas in the tank is fresh.

Jun 20, 2014 | John Deere Garden

2 Answers

Craftsman YT 4000 Won't Start


Did you check for "spark" at the plug? Check fuel filter ( maybe plugged up ". How fresh is the gas?

Nov 10, 2013 | Craftsman YT 4000 42" Briggs Stratton 24...

1 Answer

Engine runs but sputters after engaging blades


ck for water in carb bowl. also ck for filter in gas tank, or something in gas tank.

Jun 09, 2009 | Garden

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