McCulloch SN6Y21C Spare Parts List
![McCulloch SN6Y21C manual cover](/images/EwylKGoPNSKbwuglxcOhBoqm/thumbs/thumb175x175.webp)
To start the McCulloch SN6Y21C Lawn Mower, first ensure that the fuel tank is filled and the oil level is adequate. Engage the safety lever, then pull the starter rope firmly until the engine starts.
Use unleaded gasoline with an octane rating of 87 or higher. Avoid using ethanol blends greater than E10 to prevent engine damage.
Change the oil after the first 5 hours of use, then every 25 hours of operation or at least once a season. Use SAE 30 oil for optimal performance.
If the mower won't start, check the fuel level, ensure the spark plug is connected, and verify that the air filter is clean. If issues persist, consult the user manual for further troubleshooting steps.
After use, allow the mower to cool, then disconnect the spark plug. Use a brush or cloth to remove grass clippings and debris from the deck and blades. Avoid using water to prevent rusting.
To adjust the cutting height, locate the height adjustment levers on each wheel. Shift the levers to the desired height setting to change the cutting height. Ensure all wheels are set to the same height for an even cut.
Excessive vibration may be caused by a damaged blade or loose parts. Inspect the blade for damage and tighten any loose components. If the problem persists, contact a professional for repair.
To replace the blade, disconnect the spark plug and tilt the mower to access the blade. Use a wrench to remove the blade bolt, then replace with a new blade and secure it tightly. Ensure the blade is installed correctly.
Before storing for the winter, drain the fuel tank, change the oil, clean the mower, and remove the battery if applicable. Store the mower in a dry, sheltered location to protect it from the elements.
To improve performance, regularly maintain the mower by changing the oil, cleaning the air filter, sharpening the blade, and using fresh fuel. Regular maintenance ensures efficient operation and longevity.