Yamaha 250B, Owner'S Manual

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4-8
GB
Spark plug
Cleaning/Adjustment/
● ● ●
4-9
Replacement
Greasing points Greasing
●
4-16
Gear oil Change
● ●
4-20
Fuel system Inspection
● ● ●
4-11
Fuel filter (Water separator) Cleaning/Inspection
● ● ●
4-12
Fuel tank Cleaning
●
—
Idling speed Inspection/Adjustment
● ●
4-13
Anode/Trim tab Inspection
● ●
4-21
Outboard motor exterior Inspection
● ● ●
4-26
Cooling water passage Cleaning
● ●
4-5, 4-26
Propeller and cotter pin Inspection/Replacement
● ● ●
4-18
●
Battery Inspection (every 4-22
month)
Throttle pick-up timing Inspection/Adjustment
1
—
Bolts and nuts Retightening
● ● ●
4-25
Oil tank water drain Cleaning
● ● ●
4-14
Oil pump Inspection/Adjustment
1
—
Power trim & tilt unit Inspection
●
4-17
Power trim & tilt operation Inspection
● ● ●
4-17
Exhaust leakage Inspection
● ● ●
4-15
Water leakage Inspection
● ● ●
4-15
Cowling clamp Inspection
●
—
Throttle link Inspection/Adjustment
1
—
Throttle sensor Inspection/Adjustment
1
—
Wiring and connectors Inspection/Reconnect
● ● ●
4-15
Interval
Item
Initial Every
Refer
page
10 hours
50 hours
(3 months)
100 hours
(6 months)
200 hours
(1 year)
EMK30610*
MAINTENANCE CHART
Frequency of maintenance operations may be adjusted according to the operating con-
ditions,but the following table gives general guidelines.
The mark (
●
) indicates the check-ups which you may carry out yourself.
The mark (
1
) indicates work to be carried out by your Yamaha dealer.
NOTE:
Cooling water passages:
When operating in salt water, turbid or muddy water, the engine should be flushed
with clean water after each use.
EMK32010
PERIODIC MAINTENANCE
w
Be sure to turn off the engine when you perform maintenance unless otherwise speci-
fied. If the owner is not familiar with machine servicing, this work should be done by a
Yamaha dealer or other qualified mechanic.
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