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How to Change the Spark Plugs on a Craftsman Chainsaw
How to Change the Spark Plugs on a Craftsman Chainsaw. If your Craftsman chainsaw is hard to start, consider changing the spark plug. Craftsman also recommends changing the spark plug each year. Only some disassembly of the chainsaw is needed to access to the spark plug. To protect against spark plug breakage, it use a socket designed for spark...
If your Craftsman chainsaw is hard to start, consider changing the spark plug. Craftsman also recommends changing the spark plug each year. Only some disassembly of the chainsaw is needed to access to the spark plug. To protect against spark plug breakage, it use a socket designed for spark plug removal. These sockets have a cushion inside that protects the porcelain top of the spark plug from banging against the metal of the socket.
Things You'll Need
Phillips (cross-head) screwdriver
Socket wrench with ? inch spark plug socket
Champion CJ-7Y spark plug
Gap tool
Loosen the three screws securing the cylinder cover to the Craftsman chainsaw with a Phillips-head screwdriver. Lift the cover away from the chainsaw.
Pull the spark plug wire boot off the spark plug. It might be necessary to twist the boot left to right to break the seal.
Remove the spark plug from the cylinder with a socket wrench and ? inch spark plug socket. Gap a new Champion CJ-7Y spark plug to .025 with a gap disc. The gap disc is available at auto parts stores. It resembles a large coin with either a graduated edge or graduating wire sizes. The hook on the gap disc bends the ground electrode of the spark plug up or down as necessary to obtain the correct gap.
Thread the new spark plug into the cylinder until it is hand tight. Turn the spark plug clockwise with the socket wrench and spark plug socket until the plug is tight. Do not overtighten the spark plug.
Push the spark plug wire boot over the spark plug. The spring inside the boot will snap over the top of the plug. Position the cylinder cover back over the chainsaw, and secure with the retaining screws.
Tips & Warnings
Spark plugs and gap tools are available at auto parts stores. Some home improvement centers carry spark plugs that are pre-gapped.
