How to Fix a Toro Lawnmower That Won’t Start

Having trouble starting your Toro lawnmower? Don't worry, this guide will take you through a step-by-step process to diagnose and fix the issue.

By following these instructions, you’ll be able to get your lawnmower up and running in no time.

Materials Needed

Before starting, gather the following materials:

  1. Screwdriver
  2. Spark plug wrench
  3. Fresh gasoline
  4. Safety goggles
  5. Replacement air filter (if necessary)
  6. Replacement spark plug (if necessary)

Step-by-Step Guide

Step 1: Safety Precautions
Always prioritize your safety. Wear safety goggles to protect your eyes from debris and make sure you’re working in a well-ventilated area.

Step 2: Check the Fuel Level
Ensure the lawnmower has enough fuel to start. If the tank is low, refill it with fresh gasoline. If the fuel is old, drain it and fill it with new fuel.

Step 3: Examine the Spark Plug
If the lawnmower is not starting, it could be due to a faulty spark plug. To fix this issue, disconnect the spark plug wire and utilize a spark plug wrench to remove the plug. Inspect it for any indications of deterioration, rust, or harm. If needed, substitute the spark plug with a suitable alternative. 

Step 4: Clean or Replace the Air Filter
If the air filter is blocked or contaminated, it can hinder the flow of air and hinder the engine’s ability to start. Find the air filter and take it out. If it looks dirty or has been damaged, either use compressed air to clean it or substitute it with a fresh one. 

Step 5: Inspect the Carburetor
Starting difficulties can arise when the carburetor is unclean. It is necessary to open the air filter cover and examine the carburetor for any grime, litter, or blockages. The carburetor should be washed using carburetor cleaner and a tiny brush. 

Step 6: Check the Fuel Line and Fuel Filter
Examine the fuel line and filter for any blockages, fractures, or harm. Replace the fuel line or filter as needed. 

Step 7: Prime the Engine
If your Toro lawnmower has a primer bulb, press it several times to prime the engine. This helps draw fuel into the carburetor, making starting easier.

Step 8: Check the Flywheel Key
If you’ve followed all the mentioned instructions and your lawnmower doesn’t start, it’s possible that the flywheel key is broken. Take off the recoil cover and if you see any damage to the key, it will have to be substituted. 

Step 9: Consult a Professional
If you have gone through all the necessary procedures and your Toro lawnmower continues to refuse to start, it is advisable to seek assistance from a professional. A certified Toro service center possesses the necessary knowledge and skills to identify and resolve any intricate problems. 

How to Fix a Toro Lawnmower That Won't Start


By following this step-by-step guide, you can troubleshoot and fix common problems that prevent your Toro lawnmower from starting. Remember to always prioritize your safety and consult a professional if necessary. Now you’re equipped with the knowledge to get your lawn cut smoothly and efficiently.