Do Electric Mowers Have Spark Plugs?
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Do electric mowers have spark plugs? No. A spark plug makes the spark that starts a gasoline engine, and an electric mower runs on a motor powered by a battery or a cord. The sources we opened support that answer for battery-powered mowers, and they show where the spark plug idea comes from.
This guide answers from four pages we opened on 2026-10-22: two University of Illinois Extension pages, one manufacturer product page and one US EPA rule page. It also marks what those pages leave open, including corded push mowers, which the pages we could read do not describe in detail.
Quick answer
- No. Electric mowers have no gasoline engine, so there is no spark plug to clean, gap or replace.
- The Ryobi page for a battery riding mower lists spark plugs among the parts that model does not need for low maintenance.
- The extension sources place spark plugs under gasoline equipment and list battery charging and cord checks for electric equipment instead.
- No readable owner’s manual for a corded or push electric model was among the sources, so that part of the answer stays limited.
Where the spark comes from
The spark plug belongs to the ignition of a gasoline engine. The University of Illinois Extension mower maintenance page describes the spark plug as the source of the spark that starts the engine. It also says push mowers often carry one plug and riding mowers carry two. That detail matters for this question because the page ties the plug to the engine, not to an electric motor.
A companion extension post on yard equipment upkeep goes further. It says a bad spark plug is likely the second most common reason a two-cycle or four-cycle engine is hard to start, or will not start at all. It advises cleaning or replacing the plug and checking that the plug cap is correct. Each of those steps assumes a plug is present in the engine, which is why the same post places spark plugs under gasoline equipment and leaves them out of its electric section.
If you want a broader look at how electric models compare with gas, read the guide to the pros and cons of electric mowers. That guide covers the trade-offs, while this one stays on the plug question.
What replaces the spark plug on an electric mower
The manufacturer product page for a battery riding mower describes the drive as three brushless motors and calls the machine battery operated. It says the mower produces no gas or fumes and that you charge the battery and go. Those features take the gasoline engine out of the picture, and the page’s low-maintenance line names spark plugs, belts and filters together as items the mower does not need.
The page is for a battery riding mower, not a push mower, and the manufacturer marks it as discontinued. A reader with a push model should not assume the riding page describes every electric machine. The page does show one manufacturer stating in plain terms that a battery model has no spark plug to service.
For a closer look at the battery side of the choice, the guide to battery voltage and amp-hour ratings explains how battery specs are listed. Read the voltage and amp figures on the mower or battery label before you compare models, because the spark plug question does not tell you anything about battery size.
Electric and gas upkeep compared
The table below sets the spark plug beside other items the sources mention. Where a source does not cover an item for electric mowers, the cell says “not stated”. The gasoline column comes from the extension material, and the electric column comes from the riding mower page and the extension material’s electric paragraph.
| Item | Gasoline mower (per the sources) | Electric mower (per the sources) | Source |
|---|---|---|---|
| Spark plug | Makes the spark that starts the engine; can be cleaned or replaced; a bad plug is a common cause of hard starting | Not used on the battery riding mower; the manufacturer lists no spark plugs under low maintenance | University of Illinois Extension (mower maintenance and yard equipment tips); RYOBI riding mower page |
| Fuel | Gas drained or engine run dry before a long storage period | No gas or fumes on the battery riding mower | University of Illinois Extension (yard equipment tips); RYOBI riding mower page |
| Power source | Gasoline engine | Battery pack, or a cord for corded models; the battery model is described as battery operated | RYOBI riding mower page; University of Illinois Extension (yard equipment tips) |
| Storage prep | Fuel and engine steps, including a spark plug check | Battery kept charged through storage; corded tools take the least winterizing; cord condition checked | University of Illinois Extension (yard equipment tips) |
| Corded push model spark plug | Not applicable to the gasoline entries above | Not stated in any readable manual or page we opened | Not stated |
The last row is the gap in this guide. The sources cover a battery riding mower and general yard equipment, and they do not give a spark plug rule for a corded push mower. Read the table as a sorting of gasoline items and electric items, not as a list of guarantees for every model.
Safety when the blades are near your hand
The University of Illinois Extension mower maintenance page gives a safety rule that depends on the mower type. When a hand goes near the blades, the page says to disconnect the spark plug on a gas-powered mower, or to remove the battery on an electric mower. The rule is the same in purpose for both: cut off the power source before any hand reaches the blade area.
This guide does not give blade steps. Removing, sharpening or cleaning under the deck calls for the steps in your model’s manual, and the sources we opened do not add a separate spark plug safety rule for electric mowers. If you cannot find the battery removal step in the manual for your model, do not guess at it from a general guide.
Do not treat the spark plug answer as a reason to skip the battery safety step. The page names the battery as the power source to remove on an electric model, so the battery is the item to check before any blade work, whatever the model type.
Why regulators call these engines spark-ignition
The US EPA rule page we opened uses the term spark-ignition for a set of small engines at or below 19 kilowatts, which is 25 horsepower. The page says these engines are used mainly in lawn and garden equipment, including lawnmowers and garden tractors. The category name points to the plug, because a spark-ignition engine starts from a spark, and the extension page ties that spark to the spark plug.
The EPA page is about emission standards, not about how a mower is built. It does not say whether an electric mower has a spark plug, and it does not describe any electric model. Read it as background for the term, not as direct proof of the answer to the spark plug question.
That distinction matters when you compare claims. A rule about gasoline engine emissions tells you what category a gas mower falls into. It does not tell you whether a battery mower lacks a plug, and the answer to that comes from the manufacturer and extension pages instead.
How we chose
We looked for pages that answer the spark plug question directly. The criteria were a manufacturer page for an electric mower, a university extension page on mower upkeep, and a government page that defines the engine type. We opened four pages on 2026-10-22, each with an HTTP 200 response: two from the University of Illinois Extension, one from RYOBI, and one from the US EPA.
We left out retail listings, because they are not allowed for procedures or safety points. We also left out owner’s manuals offered only as PDF files, since the tool used for this draft cannot read PDFs. Several search results were general buying guides or forum threads, and we did not use them. No ranking is claimed. The RYOBI page is one discontinued battery riding mower, so it serves as one example and not as a full product review.
What we could not verify
We could not verify that every corded or push electric mower lacks a spark plug. The one manufacturer page we opened covers a battery riding mower. The extension pages describe gasoline equipment and yard equipment in general. The EPA page covers emission rules for engines.
We could not verify the wording of any owner’s manual for a corded or cordless push mower, because the manuals we found were PDF files. We also could not verify the motor type or the ignition layout inside any model named in the sources.
What the sources do not say
The sources do not say whether an electric mower has any ignition parts at all. This guide therefore answers only the spark plug question, and it does not claim anything about other engine or motor parts. They do not describe a spark plug replacement procedure for an electric mower, and they do not give a service interval for spark plugs on electric models.
They also do not compare corded and battery push mowers for spark plug issues. They do not say how often a battery riding mower needs service, and they do not state a spark plug part number for any electric model. If your question is about one model, the owner’s manual for that model is the place to check.
FAQ
Do electric lawn mowers need a spark plug?
No, as far as the sources we opened show. A spark plug starts a gasoline engine, and the sources describe electric mowers as running on a motor with a battery or a cord. The RYOBI battery riding mower page lists no spark plugs for that model.
The page covers one discontinued riding model, so it is not proof for every electric machine. For a specific push model, check the manual, since the manual is the document that lists maintenance for that machine.
Why does a gas mower need a spark plug?
The University of Illinois Extension mower maintenance page says the spark plug provides the spark that starts the engine. A companion extension post adds that a bad spark plug is likely a common reason a gasoline engine is hard to start. That is why the plug sits in the regular checklist for gas equipment.
The same post advises cleaning or replacing the plug and checking that the plug cap is correct. Those steps only make sense for an engine that has a plug, which is the basis for sorting the plug under gasoline items.
Do riding electric mowers have spark plugs?
The RYOBI battery riding mower page we opened lists no spark plugs under low maintenance. That page is for one discontinued model, so it does not describe every riding mower. Gas riding mowers are a different case: the extension page says riding mowers carry two spark plugs.
If you are comparing a battery riding mower with a gas one, the spark plug is one difference, but the sources do not give a full list of differences. Check the model’s manual for its maintenance schedule.
Do corded electric mowers have spark plugs?
The sources we opened do not confirm this for corded models. The extension material places spark plugs only under gasoline equipment. That is a sorting pattern in the text, not a direct statement about corded mowers.
For a corded push mower, the manual is the source to check. Look for the maintenance section and the parts list, since neither was readable in the sources used for this guide.
What should I check on an electric mower instead?
The extension material points to the battery and the cord. For battery equipment, it says the battery should be kept charged through storage, and it advises checking the owner’s manual for charging frequency and the correct charger. For corded equipment, it says to check the condition of the power cord and any extension cord you use.
Blade work is covered in the safety section above. The sources do not replace the owner’s manual for battery removal or cord checks on your model. For a related question about wet grass and electric mowers, see the guide to electric mowers in wet grass.
Bottom line
Check the engine type first. A gasoline engine has a spark plug to inspect, while the battery riding mower in the sources has none. For a corded or push electric model that the sources do not cover, confirm the answer in that model’s manual before you assume anything about its plug.
Sources
- University of Illinois Extension: Mower Maintenance (opened 2026-10-22)
- University of Illinois Extension: Yard Equipment Maintenance Tips (opened 2026-10-22)
- RYOBI: 30″ 50 AH Electric Riding Lawn Mower (opened 2026-10-22)
- US EPA: Final Rule for Phase 2 Emission Standards for New Nonroad Spark-Ignition Nonhandheld Engines At or Below 19 Kilowatts (opened 2026-10-22)
