Ryobi Lawn Mower Won’t Start: Reasons And How To Fix It?

The Ryobi lawn mower is a self-propelled lawn mower that has a 48-volt battery cell. It can adjust its height from 1.5 to 4 inches to accommodate different grass lengths and surfaces. The battery can be recharged, reducing noise while also being more eco-friendly than typical gas-powered lawn mowers.

However, despite the many advantages of the Ryobi lawn mower, several issues may develop during operation that users will need to resolve.

Reasons Why The Lawn Mower Won’t Start

Several customers have raised complaints about the system’s failure to start up. The purpose of this section would be to discover and explore the potential causes of the mower not starting.

Ignition Source

One of the explanations why your lawn mower isn’t operating is because the spark plug has worn out. This usually happens when the porcelain insulator cracks.

When an electrode is fractured, it indicates that it has been burned, or damaged or that it has been coated with a heavier electrode. Whether this is the case, check the spark plug with a spark plug test to see whether it needs to be replaced.

On/Off Switch

With a multimeter, check the start switch to determine whether it’s broken. Checking for continuation can help you figure out what’s wrong.

Key to the Flywheel

The flywheel key of your lawn mower may fracture if it collides with something hard. This happens in order to protect the motor in the event of a crash. If the flywheel key on your lawn mower is broken, the engine will not start. The problem can be solved by changing the flywheel key.

Coil of Ignition

The ignition coil supplies voltage to the spark plug during operation. The engine will not start if the coil has been damaged. You can use a tester to examine the coil and replace it if necessary. You can use a tester to examine the coil and change it if needed.

Recoil Spring

If the recoil spring is broken, the rope will not recoil on to the pulley to start the engine. If the spring is damaged, you must replace the starter system.

Fuse Breaker

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Even after you’ve inserted the fuse switch, the lawn mower may still not work. It usually means that the fuse switch has blown. Check the fuse switch for continuity using a multimeter and restore it if necessary.

Starter for Recoil

The recoil mechanism, which allows the engine to move, activates the crankshaft. If the recoil starter is destroyed, the motor will not function. To determine the source of the problem, remove the starting assembly and inspect it for correct operation.

Whenever you pull on the starter rope, the tabs from the pulley as well as the cam must contact the hub on the engine, forcing the engine to turn. The tab retracts as well as rewinds within the pulley when you loosen the rope. As a response, if the recoil starter stops working, it’s time to get it replaced.

Pulley for Recoil Starter

When the starter rope is not in use, the recoil starter pulley pulls it back. If the recoil pulley is broken, the rope would not rewind as well as the motor will not start. If the recoil starter pulley is damaged, you must replace it.

Rewind pulley and Spring

Under some circumstances, the rewind spring can also be broken. After the starter rope is released, it has recoiled. If the rewind springs or the pulley is broken, the rope will not be able to recoil up into the pulley.

As a result of this event, the motor will not start. To fix the problem, you’ll need to replace the rewind spring. Now, watch this video to understand what to look for when you’re getting ready to start the Ryobi mower.

The Best Way To Start A Ryobi Lawn Mower

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An electrical lawn mower operates differently from a traditional gas mower. If you want to learn how to use your Ryobi lawn mower, follow the instructions below:

The Energizer

To begin, make sure the battery is fully charged and properly inserted in the mower. If the battery is not installed correctly, the device would not function properly.

The Key to the Fuse

Keep your eyes peeled for a fuse key. The fuse key is responsible to complete the electrical circuits within the engine, which ultimately turns on the machine.

The key can be inserted into a slot just on the handle or placed near the battery. The use of a key to power the mower prevents it from switching on by accident while it is being serviced.

Toggle on the Switch

An electric switch positioned near the handle turns on and off the Ryobi mower. If you press as well as hold the switch, it will start.

Remove the Ryobi Lawn Mower Fuse Key when not in use

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The Ryobi Lawn Mower fuse key is necessary for the device to work. For the machine to work, you must first insert the fuse key. Nevertheless, you must first put the machine together. Failing to do so could actually be harmful to the machine, or you may sustain an injury.

Whenever the fuse is not being used, you must therefore remove the fuse key, which should be withdrawn and stored dry. It makes it impossible for the machine to start on its own. Pause for the blades to come to an abrupt halt before withdrawing the fuse key.

When dusting the lawn mower, be sure to remove the fuse key as well. It ensures that it is free of water splashes. It is possible that if water comes into contact with the fuse key, it will cause damage.

How to fix a broken Self-propelled Ryobi Lawn Mower?

The Ryobi self-propelled lawn mower might not be working for a variety of reasons. Let’s just have a look at a few of them:


The V-belt is responsible for driving the lawn mower wheels by turning the drive pulleys. The wheels are unable to turn due to wear and tear, which can be rectified by replacing them.

Pulley for driving

The driving pulley is connected to the engine crankshaft. If the wheel assembly is damaged, the transmission will not allow it to interact. The driving pulley should be replaced if it is damaged.

Assembly of the Wheels

The wheel assembly is responsible for engaging the transmission’s drive gear. The gears within the wheel assembly will not engage if they are worn out.

If the pulleys rotate but still the lawn mower wheel doesn’t really, the gearbox is most likely broken. Once the damaged gears are replaced, the device will continue to work.

Handle assembly adjustment

If a Ryobi mower handlebar isn’t the appropriate height, remove the knobs per each side of the handlebar in a counterclockwise direction to adjust the handle assembly.

Raise the upper handle back and up to elevate the handle to the proper height, making that the handle locks into place securely. Then, in a clockwise direction, twist the handle knobs per each side of the handle to secure it, making sure that the carrier bolts are placed appropriately.

When altering the handle height, don’t really pull or catch any of the cables in the handle.

Blade Re-adjustment

If the mower isn’t mowing the grass as well as it should, change the blade height. In cool weather, the blade must be set such that the lawn is 1 to 2 inches tall, and in warm weather, the lawn should be 2 to 3 inches tall.

Then, by pressing the height-adjustment handle on the side of the mower and dragging it toward the back, adjust the blade length as needed.

If the mower is hard to move, the grass cuttings are not being bagged correctly, or the engine quits while mowing and the battery is completely charged, raise the cutting height.

Move the height-adjustment gear toward the front to lower the blade elevation as desired.


The transmission is driven by the drive belt, which would be connected to the engine crankshaft. The engine powers the drive belt, which enables the lawn mower wheels to rotate.

Checking for problems is as simple as turning on the mower. The gearbox is dysfunctional if the transmission pulley rotates but the mower wheels do not.

However, the transmission is beyond repair. As a result, any anomalies discovered must be replaced.

Cable for Traction Control

In some circumstances, the traction control cable may be worn out or misplaced. Examine the controller cable to see whether it’s in good working order.

Pour a small quantity of oil further into the end of the cable if it’s not moving freely to eliminate friction. You should replace the cable even if it is still functional.

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Final Words

Some lawn mower brands should be avoided, but Ryobi isn’t one of them. The Ryobi lawn mower is notable for its versatility in grass lengths and surfaces, as well as its ability to recharge and reduce noise pollution.

But, just like any other brand, it might stop operating or keep starting over! As a result, always be aware of the reasons for it as well as potential solutions.