McCulloch M51-150F Spare Parts List
![McCulloch M51-150F manual cover](/images/cqIphsupsgoHbANODBmJsXHo/thumbs/thumb175x175.webp)
To start the McCulloch M51-150F, ensure that the fuel tank is filled, the spark plug is connected, and the oil level is adequate. Then, press the primer bulb 3-5 times, pull the throttle lever to the choke position, and pull the starter grip firmly. Once the engine starts, move the throttle to the run position.
The McCulloch M51-150F Lawn Mower is designed to run on unleaded gasoline with an octane rating of 87 or higher. Avoid using ethanol blends higher than E10 to prevent engine damage.
It is recommended to change the oil after the first 5 hours of use, and then every 25 hours of operation or at the start of each mowing season. Use SAE 30 oil for optimal performance.
Uneven cutting may result from a dull or damaged blade, incorrect wheel height settings, or an improperly balanced mower deck. Ensure the blade is sharp and balanced, and adjust the wheel heights to the desired cutting level.
After use, allow the mower to cool and then use a garden hose to rinse off grass clippings and debris from the undercarriage. Avoid spraying water directly on the engine. Wipe down the exterior with a clean cloth.
If the mower won't start, check that there is fuel in the tank, the spark plug is connected and clean, and the air filter is not clogged. Make sure the primer bulb is pressed sufficiently and the throttle is in the choke position before starting.
To replace the spark plug, disconnect the spark plug wire, remove the old spark plug using a spark plug socket, and install a new, properly gapped spark plug. Reattach the spark plug wire securely.
Regular maintenance includes checking and changing the oil, sharpening the blade, cleaning the air filter, inspecting the spark plug, and cleaning the mower deck. Follow the user manual for detailed maintenance schedules.
It is not recommended to mow wet grass as it can clog the mower deck and lead to uneven cutting. Wait until the grass is dry to ensure optimal mowing performance and prevent damage to the lawn mower.
To adjust the cutting height, locate the height adjustment levers on each wheel. Move the levers to the desired height position, ensuring that all four wheels are set to the same level for an even cut.