2. Remove the spark plugs to inspect. Replace spark plug if electrode is worn or the insulator is rough, cracked,
broken, blistered or fouled.
Spark Plug
Spark plug gap 1.0 mm (0.040 in.)
4. Before installing spark plugs, clean off any dirt on the spark plug seats. Install plugs finger tight, and then
tighten 1/4 turn or torque to specifications.
Description Nm lb. in. lb. ft.
Spark plug 27 20
Lubrication Points
1. Lubricate the following with Quicksilver or Mercury Precision Lubricants Anti-Corrosion Grease or 2-4-C with
Teflon.
• Propeller Shaft - Refer to Propeller Replacement for removal and installation of the propeller. Coat the
entire propeller shaft with lubricant to prevent the propeller hub from corroding and seizing to the shaft.