Mercury 125 OptiMax, Owner'S Manual

Page: 72 / 133

MAINTENANCE
62
eng
Inspection and Maintenance Schedule
BEFORE EACH USE
• Check that the lanyard stop switch stops the engine.
• Visually inspect the fuel system for deterioration or leaks.
• Inspect the outboard for tightness to the boat transom. If any
looseness of the outboard or mounting fasteners exist,
retorque the outboard mounting fasteners to the specified
torque. When looking for signs of looseness, look for loss of
outboard transom bracket material or paint caused by
movement between the outboard mounting fasteners and
the outboard transom brackets. Also look for signs of
movement between the outboard transom brackets and the
boat transom (lift plate/setback bracket).
Description Nm lb‑in. lb‑ft
Outboard mounting locknuts and
bolts ‑ standard boat transom
75 55
Outboard mounting locknuts and
bolts ‑ metal lift plates and setback
brackets
122 90
• Check steering system for binding or loose components.
• Visually check steering link rod fasteners for proper
tightness. See Steering Link Rod Fasteners.
• Check propeller blades for damage.
AFTER EACH USE
• Flush out the outboard cooling system if operating in salt or
polluted water. See Flushing the Cooling System.
• Wash off all salt deposits and flush out the exhaust outlet of
the propeller and gearcase with fresh water if operating in
saltwater.
EVERY 100 HOURS OF USE OR ONCE YEARLY,
WHICHEVER OCCURS FIRST
• Lubricate all lubrication points. Lubricate more frequently
when used in saltwater. See Lubrication Points.