Setup, Compatibility & Care
Compatibility
Ensure that the NGK BPMR7A spark plug is compatible with your specific equipment model. It is designed for Stihl Backpack Sprayers SR 320, 340, 400, 420, and 450.
Installation
- Safety First: Always disconnect the spark plug wire from the old spark plug before removing it.
- Removal: Use the correct size spark plug socket to carefully remove the old spark plug.
- Inspection: Check the new spark plug's gap against the manufacturer's recommendations.
- Installation: Thread the new spark plug in by hand to avoid cross-threading, then tighten it to the specified torque.
- Reconnect: Reconnect the spark plug wire securely.
Care
- Regular Inspection: Inspect the spark plug for wear, fouling, or damage periodically.
- Cleaning: Clean the spark plug if necessary, using a wire brush or spark plug cleaner.
- Replacement: Replace the spark plug at the intervals recommended by your equipment's manufacturer.