Mower Is Running Begins to Stall Push Primer Bulb Than Runs Again

Ahhh…the scent of fresh-cut grass. There'due south really nothing similar information technology. However, it's pretty frustrating to be all ready to tackle those tall green blades merely to take your mower burn down upwardly and then sputter out. If your lawn mower starts then dies, you want a quick answer about what'south to arraign, and what to do to prepare information technology. I'll share the 4 about common causes to this mower problem and what you demand to do to address each.

When your mower starts then dies it tin feel like you're lone, but this trouble is more common than you might think, and the fix can be an easy 1.

Allow's take a look at the four most common reasons behind that fake start and how to set them.

Causes for Backyard Mower Starting then Dying

If your lawn mower starts, runs briefly, then dies these are the 4 most common reasons that'due south happening:

• Dingy carburetor / clogged carburetor basin
• Onetime gasoline that has gone bad
• Muddy or defective spark plugs
• Too much oil in your resevoir

Below I'll go into each potential problem, why information technology can upshot in a mower that starts then dies, and what you should exercise to fix it.

Dirty Carburetor or Clogged Carburetor Bowl

When your backyard mower starts then dies, your carburetor is most likely involved somehow.

Call back about it. If you lot live in a northern region, your mower sits all winter … waiting months without any action.

And, if you alive in a more than temperate zone, your mower works hard year-around.

In both cases, your carburetor is going to need a piddling TLC.

What'due south and then important about the carburetor?

Your engine needs a steady flow of gasoline to run correctly. The carburetor is responsible for mixing gas with just the right amount of oxygen to create combustion.

This combustion supplies a continuous rotation of the crankshaft that is necessary to run the mower'south engine.

If your carburetor is muddy or the carburetor bowl is clogged, the process to a higher place is compromised, and your engine may start up, only it will not run properly and may die shortly after yous pull the string.

How exercise I fix it?

Your dingy carburetor needs a good blowout with an aerosol can of carburetor cleaner. This will cost yous less than $10 and will last for a season or two. I use the WD-40 Specialist Fast Interim Carb/Throttle Body Parts Cleaner (Amazon link). This cleaner uses a solvent formula to breakdown carbon contaminants, leaving your carburetor clean and gum-gratuitous. I requite my mower a shot of that every time a mow, correct before pulling the cord, and recommend that you do the same.

The only drawback to this particular cleaner is information technology does not have a straw for targeted spraying. If you demand a more precise awarding, Gumout makes a cleaner (Amazon link) that will do the trick with its jet spray applicator.

You can purchase either product locally, or online.

At present for the process.

Unscrew the carburetor bowl and give information technology a in one case over with the cleaner. Exist sure to clean the screw and hole with the carburetor cleaner besides. This is where the directional spraying straw is specially handy. When reattaching the bowl, don't over-tighten the spiral. This could strip the threads plenty to distort the seal.

What I Practice

For carb maintenance, give a light spray near the air intake hole for your mower'south engine just before you start information technology up. This is typically just backside the air filter. Remove the filter, requite the hole a spray, then supersede the filter.

When yous start the mower, information technology'll be pulled into the engine and make clean deposits in your carb.

Sometime Gasoline in Your Mower

You know your mower tin can't run without gasoline, simply the quality of the gas is every bit important.

If the gas in your mower has been sitting inactive for a while, evaporation has most probable created a damaging residue.

This residual leaves particles that clog your mower's internal parts.

The terminate result is restricted gas catamenia, which means your mower tin start and dice shortly thereafter. Sometimes, your mower won't showtime at all.

How practice I prepare it?

If your mower tank is less than one-half total of old gas, you might try calculation new gas to dilute the impurities. If the old gas is more than half of a tank, it would be best to siphon it out and fill the tank with fresh gasoline.

In both cases, calculation a stabilizer such as Sta-bil Fuel Organisation Stabilizer (Amazon link) is a smart idea. Stabilizers forbid the clogging residue for up to ii years, and at around $10 a bottle, they are an inexpensive additive that can go on your mower running like a champ.

Ever read the directions to know the proper fuel to stabilizer ratio for your mower.

What I Practice

I used to mix Sta-bil into my fuel, but now I but pay a little actress for 4-cycle TruFuel – an ethanol free gas product that can sit for years without going bad.

It's more expensive than regular gas mixed with Sta-bil, but a couple of larger cans will go my Honda cocky-propelled mower (this 1 from Home Depot if you're curious) through the mowing season up here in New England, and I like the peace of mind that comes with knowing my mower and snow blower always start on the first pull, and I don't have to worry about bad gas giving me problems when I'chiliad fix to mow or demand to clear the driveway.

Y'all tin can buy it online, or locally at Dwelling Depot or some local hardware stores.

Muddy or Defective Spark Plugs

Spark plugs supply the "spark" that ignites the air/fuel mixture in your engine.

This pocket-sized explosion makes your engine produce power.

The spark plugs are an essential component of your mower's ignition system. If they are dirty or faulty, they will not spark, and your mower will non start, or may get-go so quickly die.

How do I fix it?

Your mower'southward spark plug(due south) are piece of cake to observe. In nearly walk-backside mowers they're covered with a blackness cable and correct in the front of your mower.

You'll need a socket wrench of the correct size to remove your plug (check your manual to find the right size for your mower/spark plug).

If your spark plugs are not too heavily coated with build-up, you tin try cleaning them. You should never make clean a spark plug with a shot-blasting cleaner. A wire brush and advisable cleaner volition do the fox if the plug is just dirty.

However, if your mower'south spark plug looks filthy or appears to take a dark carbon residue, you might be better off replacing.

This is an piece of cake chore and information technology'southward cheap – a new spark plug with exist $viii-ix and your size is probably available locally.

What I Do

Spark plugs should be replaced every year or two for problem-free mowing, and I do mine annually equally part of my jump mower maintenance.

I become a new air filter and change the oil in my mower at the aforementioned fourth dimension. This runs me about $20 total, takes me nigh xv minutes, and keeps my mower in perfect working condition.

Replacing Your Spark Plug

Removing your spark plug is an easy job anyone can do. Simply unhook the spark plug wire and remove the old plug with a spark plug socket.

Replacing a spark plug can exist a chip more than challenging for a first-timer, but I yet consider it an easy job.

Use a spark plug judge to measure the gap between the two electrodes at the tip of your spark plug. Check for the specifications for your model to know the recommended size of the gap.

If necessary, use a spark plug estimate to adjust the gap by gently bending the curved electrode. When the gap is correct, the gauge will drag a bit every bit yous pull it through the gap.

Now you tin can install the new plug and adhere the spark plug lead. Be conscientious not to over-tighten on installation.

If you take never done this before, there are several videos online that can be of great aid, but my advice is that as before long as it starts to feel snug, give it no more than than another quarter plow to forestall damage.

Too Much Oil in the Mower's Reservoir

If your carburetor is clean and the spark plugs are firing, the problem might be also much oil.

I believe it's man nature to want to over-make full a lawn mower's oil reservoir, peculiarly if you're not peculiarly handy. You experience and so accomplished that nosotros're doing the job yourself that you go overboard and over-fill the tank.

It happens, and information technology's not the stop of the world (or your mower).

White smoke coming out of the engine is a tell-tale sign that excessive oil is the culprit.

If a lot of fume is coming out, your mower might be running, but not for long. In this case, the backlog oil will eventually drown out the engine and cause it to die.

How do I fix it?

This is really an easy set. If you accept too much oil, you but need to bleed some. You can use a siphon, or (if y'all have a walk-behind mower) y'all can tip your mower and bleed the oil from the pigsty where y'all add it.

What I Exercise

I'm guilty of overfilling the oil tank sometimes besides, so I've learned to get deadening when I add oil. I check, and check once more with the dipstick and gradually bring the level upwardly to the proper place.

If you have overfilled your oil tank, I advise that y'all use a dipstick to mensurate the amount of oil in the reservoir earlier removing it, and then once again after to brand sure you get the right level.

Not enough oil is another (and more serious) trouble, and you would not want to inadvertently trade i issue for some other.

After draining some oil and checking to come across if you lot take an adequate amount, commencement the mower again.

If the mower fires and stays running without the billowing puffs of white smoke, yous accept corrected your trouble.

Lawn Mower Starts Then Dies: When information technology's Fourth dimension to Call a Professional person

If you lot take tested all of the methods I've shared for fixing your backyard mower that starts and then dies, hopefully your problem is solved.

But if non, it might be time to throw in the store towel and call a professional.

The following are other issues that could be keeping your mower from running properly.

More Serious Reasons Your Backyard Mower Starts Then Dies

1. Worn out carburetor:  If your carburetor is more than dirty, it might be fourth dimension to supersede information technology.
2. Faulty choke: Unless you are extremely handy, identifying this trouble and restoring the delicate remainder necessary to go your engine purring like a kitten is some other issue for the experts.
3. Gas tank or gas line blockage: Anytime your gasoline is not getting to the engine, your mower will non run properly. A blockage of whatsoever kind that prevents the abiding menses of gas is a problem that might take a trained centre to identify and ready.

The boilerplate weekend warrior with limited knowledge on the matter will probably feel more comfortable hiring someone with the experience and the tools to get the task done right.

I recommend that yous start by checking your mower'southward warranty. If it's covered, a repair may not cost you anything. Some companies will ship someone correct to your home, or come to choice upwardly your mower to relieve you fourth dimension.

If your mower isn't covered by warranty, discover a local modest-engine repair shop that has practiced reviews. These guys can fix almost anything, and their prices are typically lower than you'd expect.

Preventing Mower Problems

The best way to ensure your mower will fire upwardly and run similar a champ is to put preventative measures in place.

I take tips for winterizing your mower, and a jump maintenance checklist that you tin can cheque out if you'd similar to learn more.

To summarize those hither, however:

1. Clean your air filter regularly (replace it annually).
2. Modify your spark plugs every 1-2 years.
3. Keep stored oil and gasoline make clean. Use a stabilizer in your gas to proceed it fresh for up to two years, or pay extra for four-bike TruFuel.
4. Keep your engine clean with an engine degreaser.
5. Use the dipstick and don't overfill your oil reservoir.
6. Continue your carburetor make clean with a carburetor cleaner spray.

Performing regular maintenance on your mower is the best style to go on it running smoothly, and investing a few bucks per year in this is worth it.

Yous'll avoid headaches, repair costs, and your mower will last a long time, starting right up when you demand information technology.

If you practice encounter a problem with your backyard mower, decide if you are comfortable with trying to fix it yourself.

If the effect seems to be something beyond the basics, don't hesitate to call a professional. There's no shame in this, and sometimes do-it-yourself repairs are only not worth the time, free energy, or frustration.

Merely if you are upwards for the challenge of fixing the problem yourself, the to a higher place guidelines provide a good starting place, and online videos may also exist useful. I recall YouTube is a great resources.

The principal affair is that y'all get your mower fixed and then you tin go out there and brand your lawn the envy of the neighborhood.

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