Skip to Content

My Lawn Mower is Not Getting Gas to Spark Plug [5 Fixes That Work 2022]

This site is supported by our readers. We may earn a commission, at no cost to you, if you purchase through links.

It is irritating when you’re lawn mower will not start. I’ve seen this problem despite having brand-new gas-powered lawn mowers. After extensive medical diagnosis as well as experience, I’ve found the most common cause is that the lawn mower is not getting gas to the spark plug Yes that ‘s not all.

When your lawn mower won’t begin, opportunities are it is not getting gas to the spark plug Typical reasons include a filthy air filter, spark plug, and carburetor. To fix these concerns, change the fuel filter, tidy the carburetor as well as spark plug, and replace the gas if it is old as detailed listed below.

What creates my lawn mower not to pump gas to spark plugs?

Gas-powered lawn mowers need gas to be pumped into the carburetor in order to begin Should anything obstruct the circulation of gasoline, the engine will not begin. As well as also if it does, it’s most likely to stop working after a number of mins.

Here’s what creates lawn mowers to not efficiently pump gas to the spark plug and spark:

A d dirty air filter

The air filter on a carburetor cleans the inbound air of dust and various other debris that might cause damage to engine parts. Gradually, the air filter might obtain congested, therefore affecting the flow of oxygen to the engine.

When the engine does not obtain sufficient oxygen that aids with fuel burning when the spark plug ignites your lawn mower will not begin.

Manual choke left switched on

The choke is a shaft-mounted shutoff within the air consumption chamber of the carburetor. Its feature is to block the air flow for improved suction and also consequently facilitate a much more reliable engine start-up.

While some chokes are automated, some mower motors have manual chokes that the user has to transform on as well as off by themselves.

If you leave a hand-operated choke on numerous minutes after beginning the mower, the carburetor will likely flooding up, resulting in starting failures the following time you attempt to begin up your lawn mower

Clogged up filters in the gas pump

A lot more powerful lawn mowers, such as ride-along lawn mowers, utilize gas pumps to pump gas right into the engine — instead of the gravity-feeding system that ‘s typical in a lot of push-along lawn mowers.

If the filters are obstructed, your lawn mower will not start because gas will not get to the spark plug

Stuck open valves

If the intake as well as exhaust valves do not secure totally due to stocking , accumulation of particles or typical deterioration , compression is interfered with, subsequently creating ignition problems.

If the consumption valve comes to be stuck, this influences the performance of the circulation of the air/fuel blend to the cylindrical tube, resulting in a lawn mower that will not start.

Indicators your lawn mower is not getting gas

There are several concerns that can be triggering your lawn mower not to run, consisting of electrical faults within the spark plugs along with the reasons I’ve listed above.

For instance- if you’re spark plug is wet , you certainly can not obtain your motor to start. Nevertheless- generally- the concern is usually triggered by the cutting off of efficient fuel supply to the spark plugs.

Below are a couple of signs your lawn mower is not getting gas to the spark plug as well as will not begin due to the inability to pump gas to the engine:

Lawn mower will not begin completely

If you totally can’t get your mower to begin, there might be issues with the effectiveness of gas circulation to the engine.

  • This is generally brought on by particles gathering and obstructing crucial components of the gas consumption system such as the throttle, primer switch, carburetor bowl, and the fuel filter.
  • A malfunctioned fuel pump.

Such obstructing interferes with the reliable flow of gas to the spark plugs.

Riding lawn mower beginnings after that quits running

If your fuel container is full, but your mower still pulls up after just a couple of secs, it’s highly most likely that the hole atop the container’s cap has actually been blocked by dirt and also debris.

This cuts off the back pressure needed to push fuel out of the tank and also right into the carburetor — by cutting off the air supply into the tank.

  • You ought to- therefore — check your gas storage tank cap’s air-hole to inspect whether it’s been connected.

No or asoline o or

If you can’t get your mower to begin as well as at the very same time can’t sense any type of gas smell coming from the motor, your lawnmower has absolutely run out of fuel.

A lot of mower brand names usually include a dipstick connected to the screw cap. A dipstick is used to examine the gas degree within the gas tank. It will usually have reduced and also top-level pens.

  • Dip the dipstick into the gas tank to examine the gasoline degree.
  • If the fuel mark is below the low-level mark, it indicates you’re running out of fuel and that ‘s why your mower won’t begin.

In this instance, refill the gas tank then try to begin the mower once again to see if the issue will certainly have been fixed.

Just how to Fix a Lawn Mower that ‘s Not Getting Gas

Some of these troubles can take place when in the middle of mowing. An unclean spark plug, for example, may trigger your lawn mower not to have enough power for cutting. Gas pump and filter issues as well can make it not to begin.

Here are simple DIY fixes you can utilize to correct the issue and also begin the lawn mower once again.

1. Usage fresh or new fuel

I discovered that for Craftsman mowers, old fuel tends to congest the carburetors as well as trigger problem in the circulation of fuel. Because of this, you need to always make sure that the gas in your tank is as fresh as essential.

  • An excellent way of keeping kept oil better for longer is to utilize a gas stabilization product
  • Utilize a top quality fuel stabilizer for small engines such as the Star Tron Enzyme Fuel Treatment

This option will avoid gas destruction by minimizing oxidation. Your fuel will stay clean and fresh for longer.

2. Re plac or the gas filter

If you possess a Husqvarna mower and also it won’t begin, the most likely reason would be a clogged fuel filter. This normally takes place if you’ve left gas in your mower for long.

The best fix is to drain off the old fuel from the gas container and also changing the filter.

3. Clean the carburetor

For MTD mowers, one of the most common source of fuel not getting to the spark plug is a clogged-up carburetor because of the build-up of particles.

To fix the trouble, tidy up the carburetor by taking out the gas bowl and splashing the carburetor with some carburetor cleaner.

A clean carburetor will get your MTD lawn mower electric motor running once more.

Right here’s a video on how to cleanse the carburetor on your lawn mower:

HOW TO CLEAN The Carburetor on BRIGGS Stratton Quantum Lawnmower Engines

4. Prevent using high-ethanol gas

If you have a Honda mower, you could intend to stay with a gasoline brand name with less than 10% ethanol. Greater ethanol degrees commonly create these lawn mowers to fall short to start.

Anything above 10% ethanol as well as your carburetor will accumulate up all the atmospheric moisture taken in by the high-alcohol fuel.

Throughout the winter, the vapor counts on water which leaves some kind of residue on the carburetor components. This debris will certainly cause clog over time as well as hence interrupt fuel flow. You’ll then wind up with a Honda mower that can not start.

5. Clean the spark plug

lawn mower not starting does not always indicate the fuel is not reaching the engine or spark plug The trouble might be that the spark plug hangs, unclean or damaged somehow.

To repair this trouble and also make the mower beginning, eliminate the spark plug, wipe any kind of debris, and return it. See to it is well fitted to stop any kind of electric faults and cut-offs.

Mower Won’t Start. Just how to repair it in minutes, free of charge.

Find out more:

Best lawn lawn mowers under $300

Best reel lawn lawn mowers for yard types like Bermuda lawn

Relevant Posts

My Lawn Mower Starts Then Dies: What’s Wrong?

Accidentally Put Gas in the Oil Tank on your Lawn Mower?

Just how To Stop A Lawn Mower From Smoking– Easy Fix

Just how To Fix A Lawnmower That Will Not Start

Can You Use Car Oil In A Lawn Mower?

References
  • crabgrasslawn.com
Avatar for Mutasim Sweileh
Mutasim Sweileh

Mutasim is a published author and software engineer and agriculture expert from the US. To date, he has helped thousands of people make their yards lush and thick.