INSPECTION AND MAINTENANCE64
ENOM00090-0
It is important to inspect and maintain your outboard motor regularly. At each interval on
the chart below, be sure to perform the indicated servicing.
Maintenance intervals should be determined according to the number of hours or number
of months, whichever comes first.
2. Periodic Inspection
Description
Inspection intervals
Inspection procedure Remarks
First 20
hours of 1
month
Every 50
hours of 3
months
Every 100
hours of 6
months
Every 200
hours of 1
year
Fuel System
Fuel filter
Check and clean or Replace if
necessary.
High pressure fuel
filter
*1
Replace
Replace every 200 hrs or 2 years Entire cartridge
Piping/Hoses
*2
Check and clean or Replace if
necessary.
Fuel tank
*2
Clean
Fuel tank cap
*2
Check and clean or Replace if
necessary.
Fuel pump
*1
Check and clean or Replace if
necessary.
Ignition
Spark plug
Check gaps. Remove carbon deposits
or Replace if necessary.
0.8-0.9 mm
(0.031-0.035 in)
Ignition timing
*1
Check timing
Starting
System
Starter rope
*1
Check for wear or chafing
Starter motor
*1
Check for salt deposits and the battery
cable condition.
Battery
Check installation, fluid quantity, gravity.
Engine
Engine oil
Replace
Replace
Replace
Replace if necessary.
Oil filter
*1
Replace every 200 hrs or 2 years Entire cartridge
Valve Clearance
*1
Check & adjust
IN:
0.13-0.17 mm
(0.0051-0.0067 in)
EX:
0.18-0.22 mm
(0.0071-0.0087 in)
Timing belt
*1
Check and Replace if necessary.
Air filter
*1
Replace every 200 hrs or 2 years for ISC
Thermostat
*1
Check and Replace if necessary.
Lower Unit
Propeller
Check for bent blades, damage, wear.
Gear oil
Replace
Replace
Replace
Change or replenish-oil and check for
water leaks.
280 mL (9.5 fl.oz.)
Water pump
*1
Check for wear or damage.
Replace impeller
every 12 months.
Power trim & tilt
*1
Check & replenish oil, manually operate
Warning system
*1
Check function
Bolts and Nuts
Retighten
MFS25-30B_EN.book Page 64 Wednesday, December 12, 2012 11:58 AM
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