This NGK Spark plugs replaces the Bosch W4AC Spark Plug and as alternative should allow the engine to run well over a range of speeds. The W4AC superseded the original Bosch W240T1. Set the plug at 0.6mm or 24 thou.
This NGK Spark plugs replaces the Bosch W4AC Spark Plug and as alternative should allow the engine to run well over a range of speeds. The W4AC superseded the original Bosch W240T1. Set the plug at 0.6mm or 24 thou.