Yamaha 90A Outboard Motor User Manual


 
4-9
NOTE:
Cooling water passages;
When operating in salt water, turbid or muddy water, the engine should be flushed
with clean water after each use.
Interval
Item
Initial Every
Refer
Page
10 hours
50 hours
(3 months)
100 hours
(6 months)
200 hours
(1 year)
Carburetor
Cooling water passages
Fuel filter
Fuel system
Throttle link
Idling speed
Spark plug
Oil tank water drain
Oil pump
Power trim and tilt system
Wiring & Connectors
Exhaust leakage
Water leakage
Grease points
Gear oil
Bolts & Nuts
Cowling clamp
Anode
Propeller
Motor exterior
Battery
Cleaning
Cleaning
Cleaning
Inspection
Inspection/Adjustment
Inspection/Adjustment
Cleaning/Adjustment/Replacement
Cleaning
Inspection/Adjustment
Inspection
Inspection/Reconnect
Inspection
Inspection
Greasing
Change
Retightening
Inspection
Inspection
Inspection
Inspection
Inspection
1
1
1
(every month)
1
1
1
4-5
4-13
4-12
4-14
4-10
4-15
4-18
4-16
4-16
4-16
4-17
4-21
4-26
4-22
4-19
4-26
4-23
MAINTENANCE CHART
Frequency of maintenance operations may be adjusted according to the operating con-
ditions, but the following table gives general guidelines.
The mark (7) indicates the check-ups which you may carry out yourself.
The mark (2) indicates work to be carried out by your Yamaha dealer.
E
6H3-9-1L 4 4/26/01 5:32 PM Page 4-9