Installation Procedure
- Properly position each spark plug washer.
- Inspect each spark plug gap. Adjust each plug as needed.
Specification
Spark plug gap: 1.524 mm (0.060 in)
NOTE: Refer to FASTENER NOTICE in Cautions and Notices. - Install the spark plugs.
Tighten
- For (IRON Head-all Subsequent Installations) tighten the spark plugs to 20 N.m (15 lb ft).
- For new iron heads tighten the spark plugs to 30 N.m (22 lb ft).
- Install the spark plug wires. Refer to Spark Plug Wire Replacement .