Specifications

Diagnosis: Fuel, Air,
Compression, Spark
Correct spark plug is:
Torch F7RTC or F6RTC There are
no alternatives that have been
tested and are proven to perform
as an equivalent.
Visual examination of the spark plug: “read” the plug for
indications of lean running, rich running, overheating, electrode
erosion, oil fouling.
It is not practical to visually check the spark at the gap on a
resistor plug: most spark orange.