How to Change the Spark Plug & Set the Gap on a Mcculloch Mac Cat 338 Chainsaw
In this video, we show you how to change the spark plug and set the gap on a McCulloch Mac Cat 338 Chainsaw.
Health & Safety Warning - Please ensure that you have safely prepared the machine and workspace. If you are unsure about any aspect of the task please seek professional advice.
Transcript
Today we're going to replace the spark plug on a McCulloch Mac 338 Chainsaw. Firstly remove the top cover using a flat screwdriver and remove the 3 screws. You can now disconnect the spark plug boot. Loosen the spark plug using a torx. Get your new spark plug and if necessary, check the gap before you change it. Using a feeler gauge, make sure the gap is 0.7mm. Hand tighten the plug, and tighten with the torx. Place the boot back over the plug. Then attach the top cover, fixing with the screws. That's how you replace the spark plug on a McCulloch Mac 338 Chainsaw.
Parts
Parts and tools included in the McCulloch Mac 338 how-to video.
