• 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
• Visually inspect the fuel system for deterioration or leaks.
• Check steering system for binding or loose components.
• Check propeller blades for damage.
AFTER EACH USE
• Flush out the outboard cooling system if operating in salt, polluted, or
muddy 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.
• If operating in saltwater, inspect the powerhead and powerhead
components for salt buildup. See Cleaning Care for the Powerhead
(Saltwater Use).
EVERY 100 HOURS OF USE OR ONCE YEARLY, WHICHEVER
OCCURS FIRST
• Change engine oil and replace the oil filter. The oil should be changed
more often when the engine is operated under adverse conditions, such
as extended trolling. See Changing Engine Oil.
• Inspect the thermostat visually for corrosion or a broken spring. Ensure
the thermostat closes completely at room temperature.
1.
• Check low‑pressure fuel filter for contaminants. Replace filter if required.
See Fuel System.
• Check the outboard mounting fasteners that fasten the outboard to the
boat transom. Tighten the fasteners to the specified torque.
1.
1. These items should be serviced by an authorized dealer.
MAINTENANCE
eng 61
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