The first warm days of spring signal the start of lawn care season, and for many, that means pulling out the trusty Murray lawn mower. But after months of sitting idle, your mower might be a little reluctant to start. Don’t worry, with a few simple steps and a bit of know-how, you’ll be mowing your lawn in no time. This comprehensive guide will cover everything from pre-start checks to troubleshooting common starting issues, leaving you confident and ready to tackle those overgrown patches.
Understanding the Basics: Murray Mower Starting Mechanisms
Most Murray lawn mowers use either a pull-start system or an electric start. Pull-start mowers are the most common and rely on a manual rope to crank the engine, while electric start mowers use a battery and starter motor. While the starting process differs slightly, the principles of fuel, air, and spark remain the same. This guide will primarily focus on pull-start mowers, as they are the most prevalent.
Pre-Start Checklist: Ensuring a Smooth Start
Before even attempting to start your Murray mower, take a moment to conduct a pre-start inspection. This simple step can save you time and frustration in the long run.
1. Fuel Level:
- H3: Check the Fuel Tank: Make sure your fuel tank has a sufficient amount of fresh, high-octane gasoline. Avoid using fuel older than 30 days as it can degrade and lead to starting issues.
- H3: Check for Leaks: Look for any fuel leaks around the tank, lines, and carburetor. If you find any, address them immediately before starting the engine.
2. Oil Level:
- H3: Check the Oil Dipstick: Use the dipstick to check the engine oil level. It should be at the “full” mark or close to it. If the level is low, add the appropriate type and amount of engine oil.
3. Blade Safety:
- H3: Inspect the Blade: Make sure the blade is sharp and free of any damage or rust. A dull blade can cause uneven cuts and increase engine strain.
- H3: Check the Blade Mounting: Ensure the blade is securely mounted and that the bolts are tightened.
4. Air Filter:
- H3: Inspect the Air Filter: A dirty air filter restricts airflow to the engine, making it harder to start. Clean or replace the air filter if it’s dirty.
5. Spark Plug:
- H3: Inspect the Spark Plug: A worn-out or fouled spark plug can prevent the engine from igniting. Check the spark plug for wear and tear, and replace it if necessary.
Starting Your Murray Mower: A Step-by-Step Guide
Once you’ve completed the pre-start checklist, you’re ready to fire up your Murray mower.
1. Choke Position:
- H3: Engage the Choke: For cold starts, engage the choke lever, typically found on the handle. This enriches the fuel mixture, making it easier for the engine to start.
2. Pull-Start Procedure:
- H4: Prime the Engine: If your mower has a primer bulb, press it a few times to introduce fuel into the carburetor.
- H4: Pull the Starter Cord Slowly: Gently pull the starter cord a few times to build up compression in the engine.
- H4: Pull the Starter Cord Vigorously: With a firm, rapid motion, pull the starter cord all the way out. Continue pulling until the engine starts.
3. Disengage the Choke:
- H3: Once the Engine is Running: Slowly disengage the choke lever as the engine warms up. This allows the engine to run at a more efficient fuel mixture.
Troubleshooting Starting Problems: Common Issues and Solutions
Even after following the starting procedure, your Murray mower might still refuse to cooperate. Here are some common starting issues and their solutions:
1. Engine Won’t Start at All:
- H4: Check for Spark: Remove the spark plug and test for spark by grounding it to the engine block while pulling the starter cord. If there’s no spark, check the spark plug, spark plug wire, and ignition coil.
- H4: Check the Fuel System: Make sure the fuel lines are clear and that the fuel tank is not empty. If the fuel is old, drain it and replace it with fresh gas.
- H4: Check for Airflow: Ensure the air filter is clean and that there’s no blockage in the air intake.
2. Engine Starts but Dies Immediately:
- H4: Check the Fuel Mixture: If the fuel mixture is too rich, the engine may sputter and die. Check the choke lever and ensure it’s fully disengaged.
- H4: Check the Spark Plug: A worn-out or fouled spark plug can cause the engine to misfire. Clean or replace the spark plug if necessary.
3. Engine Runs Rough:
- H4: Check the Air Filter: A dirty air filter can restrict airflow and cause the engine to run rough. Clean or replace the air filter.
- H4: Check the Fuel Lines: Inspect the fuel lines for cracks or leaks. Replace any damaged lines.
4. Engine Backfires or Makes a Popping Sound:
- H4: Check the Ignition System: A faulty ignition coil, spark plug wire, or spark plug can cause backfires. Inspect these components and replace any faulty ones.
- H4: Check the Carburetor: A dirty or malfunctioning carburetor can cause the engine to run erratically. Clean the carburetor or replace it if necessary.
Maintenance Tips: Keeping Your Murray Mower Running Smoothly
Regular maintenance is essential for keeping your Murray lawn mower in top condition.
1. Change the Oil:
- H3: Follow the Manufacturer’s Recommendations: Check your owner’s manual for the recommended oil change intervals. Typically, oil should be changed after every 25 hours of use or at the end of each mowing season.
2. Clean the Air Filter:
- H3: Clean or Replace Regularly: Clean or replace the air filter every 25 hours of use or more often if you mow in dusty conditions.
3. Inspect the Spark Plug:
- H3: Inspect and Clean or Replace: Check the spark plug for wear and tear every 50 hours of use. Clean or replace it if necessary.
4. Clean the Cutting Deck:
- H3: Remove Grass Clippings: After each use, clean the cutting deck of any grass clippings and debris to prevent rust and corrosion.
5. Store the Mower Properly:
- H3: Clean and Cover: Before storing your mower for the winter, clean it thoroughly, drain the fuel tank, and cover it with a tarp.
Conclusion: Confidence and Success in Starting Your Murray Lawn Mower
By following these steps and troubleshooting tips, you’ll be able to confidently start your Murray lawn mower and get those chores done. Remember, regular maintenance is key to keeping your mower running smoothly, ensuring a trouble-free mowing experience for seasons to come.
FAQs
How do I check the oil level in my Murray lawnmower?
To check the oil level, locate the dipstick, which is typically a metal rod with a handle. Pull the dipstick out and wipe it clean with a cloth. Insert it back into the oil fill hole and then remove it again. The oil level should be between the “Full” and “Low” marks on the dipstick. If the oil level is low, add oil until it reaches the “Full” mark.
Ensure you use the correct type of oil for your Murray lawnmower, which is typically 10W-30. Overfilling the oil can damage your engine, so always add oil cautiously and check the level after each addition.
What if my Murray lawnmower won’t start?
There are several reasons why your lawnmower might not start. First, check that the fuel tank is full and that the fuel line is not kinked or clogged. Next, ensure the spark plug is clean and has a good connection. If the spark plug is fouled, you’ll need to clean or replace it.
You also want to make sure the air filter is clean and that the blade is not hitting anything. If you’ve recently changed the oil, ensure you have properly reinstalled the oil fill cap. If none of these steps work, consult the owner’s manual for your specific Murray model for additional troubleshooting advice.
What kind of gas should I use in my Murray lawnmower?
Use regular unleaded gasoline with a minimum octane rating of 87. Avoid using gasoline that has been sitting in a container for more than 30 days, as it can become stale and cause starting problems. It’s also recommended to add a fuel stabilizer to your gas to prevent it from going bad.
Always use a gas can that is specifically designed for gasoline and ensure it is clean and free of debris. Never use a gas can that has previously been used for other liquids, as this can contaminate the fuel.
How often should I change the oil in my Murray lawnmower?
The frequency of oil changes will depend on the amount of use your lawnmower receives. Generally, it’s recommended to change the oil after every 25 hours of use or once a season, whichever comes first.
Check your owner’s manual for specific recommendations for your model. You should also change the oil after extended storage, as old oil can become acidic and damage your engine.
How do I know if my Murray lawnmower blade is sharp?
A dull blade will tear and scalp your grass, resulting in an uneven cut. To check if your blade is sharp, run your finger lightly along the edge of the blade. If it feels smooth or rounded, it’s time to sharpen the blade.
You can sharpen the blade yourself using a file or a sharpening stone, or you can take it to a local lawnmower repair shop to have it professionally sharpened.
What is the choke on a Murray lawnmower?
The choke helps to enrich the fuel-air mixture in the engine, making it easier to start in cold weather. When you use the choke, it restricts the air flow into the engine, making the fuel-air mixture richer and easier to ignite.
When the engine starts, you can gradually release the choke until it’s fully open. It’s important to note that some modern lawnmowers don’t have a choke, as they have automatic starting features that adjust the fuel-air mixture.
How do I maintain my Murray lawnmower?
Regular maintenance is crucial to keeping your Murray lawnmower running smoothly. This includes checking the oil level and changing the oil regularly, cleaning the air filter, sharpening the blade, and checking the spark plug.
You should also inspect the mower deck for any damage and clean any debris that has accumulated around the engine. By following these simple maintenance steps, you can ensure your Murray lawnmower will provide you with years of reliable service.