5 Common Exmark 708cc Engine Problems(With Solutions)

The Exmark 708cc engine is a workhorse, providing the necessary power to efficiently mow your lawn.

However, even the most robust engines can face challenges. Let’s delve into the potential problems you might encounter and the best ways to tackle them.

This post aims to guide you through common Exmark 708cc engine problems, providing troubleshooting steps and effective solutions to keep your mower running smoothly.

Let’s dive in.

Exmark 708cc Engine Problems

Common Problems Faced by Exmark 708cc Engines:

1. Hard Starting Issues

Having difficulty starting your mower’s engine can be frustrating. This problem often stems from issues with the spark plug or fuel system.

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Before delving into complex solutions, begin by checking the spark plug and ensuring that the fuel system is delivering an adequate supply.

2. Uneven Performance

If you notice inconsistent power levels while mowing, your engine might be experiencing performance fluctuations. This could be due to a clogged air filter or an imbalanced carburetor.

Exmark Engine Problems

Regularly clean or replace the air filter and make necessary adjustments to the carburetor to restore smooth performance.

3. Overheating Concerns

Overheating can lead to significant engine damage. To prevent this, maintain the cooling system by ensuring proper airflow.

Exmark 708cc Engine Problem

Clean debris from cooling fins and verify that oil levels are within the recommended range, as low oil levels can contribute to overheating.

4. Oil and Fuel-related Problems

Using subpar fuel or neglecting oil changes can lead to engine problems. It’s crucial to use high-quality fuel and change the oil according to the manufacturer’s recommendations.

Exmark 708 Engine Problems

Proper lubrication and combustion are essential for the engine’s longevity.

5. Excessive Vibration

Excessive vibration can indicate problems with blades, belts, or engine mounts. Regularly inspect these components and replace any damaged parts.

Balanced blades and belts, along with secure engine mounts, contribute to smoother operation.

Read Kohler Engine Dies After 30 Minutes(7 Quick Ways To Fix)

Troubleshooting the Exmark 708cc Engine

1. Checking the Spark Plug and Fuel System

When facing hard-starting problems, start by examining the spark plug. Clean it or replace it if necessary.

Then, ensure that fuel filters and lines are clean and that the fuel pump is functioning correctly. If needed, seek professional assistance to diagnose and resolve fuel delivery issues.

2. Cleaning the Air Filter and Adjusting the Carburetor

To restore even performance, clean or replace the air filter regularly. If issues persist, adjust the carburetor to ensure the right air-fuel mixture.

Refer to your owner’s manual for specific instructions on carburetor adjustments.

3. Cleaning the Cooling System and Checking Oil Levels

Prevent overheating by keeping the cooling system clean and free from debris. Gently clean the cooling fins with compressed air.

Additionally, monitor oil levels regularly and top up when necessary to maintain optimal engine temperature.

4. Using High-Quality Fuel and Changing Oil Regularly

Invest in high-quality fuel to prevent fuel-related issues. Follow the manufacturer’s recommendations for oil change intervals and use the recommended oil type.

Regular oil changes ensure proper lubrication and enhance engine performance.

5. Inspecting Blades, Belts, and Engine Mounts

Inspect blades for balance and sharpness, as imbalanced blades contribute to vibrations. Check belts for signs of wear and replace them as needed.

Secure engine mounts also play a role in reducing vibrations, so ensure they are tightened correctly.

Maintenance Tips to Prevent Future Problems

Regular Oil Changes: Ensuring Proper Lubrication

Frequent oil changes are the cornerstone of engine longevity. Regularly replace the oil and oil filter as per the manufacturer’s guidelines to maintain optimal lubrication.

Air Filter Maintenance: Keeping the Engine Breathing Cleanly

Clean or replace the air filter at recommended intervals to prevent debris from entering the engine. A clean air filter ensures efficient combustion and prevents performance issues.

Fuel Quality: The Importance of Using Fresh, Clean Fuel

Always use high-quality, fresh fuel to prevent fuel-related problems. Stale or contaminated fuel can clog the fuel system and hinder engine performance.

Cooling System Care: Preventing Engine Overheating

Regularly clean the cooling fins and ensure proper airflow. Address any debris buildup promptly to prevent overheating and potential engine damage.

Read Kawasaki Liquid Cooled Engine Problems(7 Quicks Ways To Fix)

Exmark Zero Turn Mower Problems

ProblemPossible CausesSolutions
Engine Won’t Start– Dead battery– Charge or replace the battery
 – Faulty ignition switch– Check and replace the ignition switch
 – Clogged fuel filter– Replace the fuel filter
 – Dirty spark plug– Clean or replace the spark plug
Loss of Power– Dirty air filter– Clean or replace the air filter
 – Clogged fuel filter– Replace the fuel filter
 – Carburetor issues– Clean or rebuild the carburetor
Uneven Cutting– Uneven tire pressure– Check and adjust tire pressures
 – Damaged cutting blades– Sharpen or replace cutting blades
 – Incorrect deck adjustment– Adjust the deck height for even cutting
Excessive Vibration– Damaged or unbalanced cutting blades– Replace or balance the cutting blades
 – Loose or worn belts– Tighten or replace belts
 – Engine mounting issues– Check and repair engine mounting
Hydrostatic Transmission Issues– Low hydraulic fluid– Check and top up hydraulic fluid
 – Worn drive belt– Replace the drive belt
 – Faulty hydrostatic pump– Consult a professional for repair
Steering Problems– Loose or damaged steering components– Tighten or replace steering parts
 – Air in the hydraulic system– Bleed the hydraulic system
 – Faulty steering linkage– Repair or replace steering linkage

Read Kohler Engine Not Charging Battery(3 Quick Ways To Fix)

Final Remarks

Your Exmark mower with a 708 cc engine is a dependable partner in maintaining your lawn’s pristine appearance.

By understanding common issues and practicing proactive maintenance, you can keep your engine running efficiently for years to come.

Remember to follow the troubleshooting steps outlined in this article to address problems effectively and maintain optimal performance.

Read 7 Toro V-Twin 708cc Engine Problems(With Solutions)

George Bill
George Bill

George Bill is a Mechanical Engineer by Profession and an avid gardener and has been mowing his lawn for over 20 years. He has used a variety of different mowers during this time.
George is an expert at maintaining his mowers and over the years, he has learned many tricks and techniques for getting the best results from his mowers and is always happy to share his knowledge on this site.