Mercury 150 User Manual

MAINTENANCE
42
2. Remove the spark plugs to inspect. Replace spark plug if electrode is worn or the insulator is
rough, cracked, broken, blistered or fouled.
ob01092
3. Set the spark plug gap to specifications, if applicable. See General Information - Specifications.
ob00424
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 Special Lubricant 101.
Tube Ref No. Description Where Used Part No.
34
Special Lubricant 101 Trim ball ends 92-802865Q1
• Trim Ball Ends - Turn the ball ends to work the lubricant into the ball sockets.
ob01093
2. Lubricate the following with Quicksilver or Mercury Precision Lubricants Anti-Corrosion Grease
or 2-4-C with Teflon.
Tube Ref No. Description Where Used Part No.
94
Anti-Corrosion Grease Propeller shaft 92-802867Q1

Mercury 150 Specifications

General

Fuel Induction System	Electronic Fuel Injection (EFI)
Horsepower	150 hp
Steering	Hydraulic
Shaft Length	20" / 25"
Starting	Electric
Weight	455 lbs (20"), 462 lbs (25")