Yamaha F50A - Maintenance Interval Chart

CHK
ADJ
Periodic checks and adjustments
3-3
62Y3A11
Maintenance interval chart
3
Use the following chart as a guideline for general maintenance.
Adjust the maintenance intervals according to the operating conditions of the outboard.
NOTE:
• If operating in salt water, turbid or muddy water, flush the engine with fresh water after each use.
• If leaded gasoline is used regularly, check the engine valves and related parts every 300 hours of
operation in addition to the items in the maintenance interval chart.
Item Remarks
Initial Every
Refer to
page
10 hours
(Break-in)
50 hours
(3 months)
100 hours
(6 months)
200 hours
(1 year)
Top cowling
Top cowling fit Check 3-4
Fuel system
Fuel joint and fuel hoses Check 3-4
Fuel filter Check/replace 3-5
Fuel tank Cleaning —
Power unit
Engine oil Change 3-5
Oil filter Change 3-5
Timing belt Check 3-7
Valve clearance Check/adjust 3-10
Spark plugs Clean/adjust/replace 3-11
Thermostat Check 3-12
Water leakage Check —
Motor exterior Check —
Exhaust leakage Check —
Cooling water passage Clean 3-13
Control system
Throttle cable Check/adjust 3-13
Shift cable Check/adjust 3-14
Engine idle speed Adjust 3-15
Ignition timing Check 3-15
Power trim and tilt unit
Power trim and tilt Check 3-16
Lower unit
Gear oil Change 3-17
Lower unit leakage Check 3-19
Propeller Check 3-19
General
Anodes Check/replace 3-19
Battery Check every 1 month 3-20
Wiring and connectors Check/reconnect —
Nuts and bolts Tighten —
Lubrication points Lubricate 3-21