Yamaha 50 Owner's Manual page 66

Maintenance
Item
Fuel line(High pres-
sure)
Fuel line(Low pres-
sure)
Fuel line(Low pres-
sure)
Fuel pump
Fuel/engine oil leakage Inspection
Gear oil
Greasing points
Impeller/water pump
housing
Impeller/water pump
housing
Oil tank water drain
Oil injection pump/oil
feed pump
Power trim and tilt unit/
Operation, noise and
oil leakage
Propeller/propeller nut/
cotter pin
Shift link/shift cable
Spark plug(s)
Spark plug caps/spark
plug wires
Water from the cooling
water pilot hole
Throttle link/throttle
cable/throttle pick-up
timing
Thermostat
Water inlet
60
Actions
Inspection or replace-
ment as necessary
Inspection
Inspection or replace-
ment as necessary
Inspection or replace-
ment as necessary
Replacement
Greasing
Inspection or replace-
ment as necessary
Replacement
Inspection or cleaning
Inspection or Adjust-
ment
Inspection
Inspection or replace-
ment as necessary
Inspection, adjustment
or replacement as nec-
essary
Inspection or replace-
ment as necessary
Inspection or replace-
ment as necessary
Inspection
Inspection, adjustment
or replacement as nec-
essary
Inspection or replace-
ment as necessary
Inspection
Initial
20 hours 100
(3 hours
months) (1 year)
Every
300 500
hours hours
(3 years) (5 years)