Suzuki DF 25 User manual

FOUR STROKE

I •
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GENERAL INFORMATION 1·1
GENERAL INFORMATION
WARNING/CAUTION/NOTE ....................................... .............................. 1- 2
GENERAL PRECAUTIONS ............
.. ............. .. .............................. .. ............ .. 1- 2
IDENTIFICATION NUMBER LOCATION ......................................
.. ............ .. 1- 4
FUEL
AND OIL ......... .... .. ....... .. ............. .. .... .. ................... .. ............ .. .............. 1- 4
GASOLINE RECOMMENDATION .......................................... .. ............. 1- 4
ENGINE OIL .............................................................
.. ................ ............1· 5
ENGINE BREAK-IN .........................
.. ............ .. ................................ .. ............ 1- 6
WARM-
UP RECOMMENDATION .......................................................... 1- 6
THROTTLE RECOMMENDATION .........................................................1- 6
PROPELLERS .. ........................... .. ................................................. .. ............. 1- 7
SPEC/FICA TIONS ........ .. ................ .. .. .. ......................................................... 1- 8
SERVICE DATA.............................................................................................. 1-10
TIGHTENING TORQUE
.. .................................................................... .. ......... 1-14
SPECIAL TOOLS ............. .. ........................... ... ............................... .. .... .. .. .. ..1-15
MATERIALS REQUIRED ...............
.. ............................................ .. ............... 1-17

1·2 GENERAL INFORMATION
WARNING I CAUTION I NOTE
Please read this manual and follow its instructions ca;efully. To emphasize special information. the symbol
and the words WARNING, CAUTION and NOTE have special meanings. Pay special attention to
the mes·
sages highlighted by these signal words.
A WARNING
Indicates a potential hazard that could result in death or injury.
CAUTION !
Indicates a
potential hazard that could result in motor damage.
NOTE:
Indicates special information to make maintenance easier or instructions clearer.
Please note, however, that the warnings and cautions contained in this manual cannot possibly cover all
potential hazards relating to the servicing, or lack
of servicing, of the outboard motor. In addition to the
WARNING and CAUTION stated, you must also use good judgement and observe basic mechanical safety
principles.
GENERAL PRECAUTIONS
A WARNING
•
Proper service and repair procedures are important for the safety of the service mechanic
and the safety and reliability of the outboard motor.
• To avoid eye injury, always wear protective goggles when filing metals, working on a grinder,
or doing other work, which could cause flying material particles.
• When 2 or more persons work together, pay attention to the safety of each other.
• When it is necessary to run the outboard motor indoors, make sure that exhaust gas is vented
outdoors.
• When testing an outboard motor in the water and on a boat, ensure that the necessary safety
equipment is on board. Such equipment includes: flotation aids for each person, fire extin-
guisher, distress signals, anchor, paddles, bilge pump, first-aid kit, emergency starter rope,
etc.
• When working with toxic or flammable materials, make sure that the area you work in is well-
ventilated
and that you follow all of the material manufacturer's instructions.
• Never use gasoline as a cleaning solvent.
• To avoid getting burned, do not touch the engine, engine oil or exhaust system during or
shortly after engine operation.
• Oil can be hazardous. Children and pets may be harmed from contact with oil. Keep new and
used
oil away from children and pets. To minimize your exposure to oil, wear a long sleeve
shirt and moisture-proof gloves (such as dishwashing gloves) when changing oil. If oil con-
tacts
your skin, wash thoroughly with soap and water. Launder any clothing or rags if wet
with oil. Recycle or properly dispose of used oil.
1 • After servicing fuel, oil/engine cooling system and exhaust system, check all lines and fit·
tings related to the system for leaks.
• Carefully adhere to the battery handling instructions laid out by the battery supplier.

GENERALINFORMATION 1-3
CAUTION
• If parts replacement Is necessary, replace the parts with Suzuki Genuine Parts or their equiv-
alent .
• When removing parts that are to be reused, keep them arranged in an orderly manner so that
they may be reinstalled in the proper order and orientation .
• Be sure to use spec ial tools when i nstructed .
• Make sure that all parts used in assembly are clean and also lubricated when specified.
• When use of a certain type of lubr i cant , bond, or sealant is specified, be sure to use the spec -
ified type .
• When removing the battery, disconnect the negative cable first and then the pos it i ve cable.
When reconnecting
the battery , connect the positive cable first and then the negative cable.
• When performing service to electr ical parts, if the service procedures do not require us i ng
battery power, disconnect the negat i ve cable from the battery.
• Tighten cylinder head and case bolts and nuts , beginning with larger diameter and ending
wi th smaller diameter. Always tighten from inside to outside diagonally to the specified tight-
eni ng torque .
• Whenever you remove oil seals , gaskets, packing , 0-rings , locking washers, locking nuts ,
cotter pins, circljps, and certain other parts as specified, always replace them with new. Also,
before. installing these new parts, be sure to remove any left over material from the mating
surfaces.
• Never reuse a circlip . When installing a new circlip, take care not to expand the end gap larger
than required to slip the circllp over the shaft . After Installing a circlip, always ensure that it is
completely seated in I ts groove and securely fitted.
• Use a torque Wrench to tighten fasteners to the specified torque.
Wipe off grease and oil it a threads is smeared with them.
• After reassembly, check parts for ti ghtness and proper operation .
• To protect the environment , do not unlawfully dispose of used motor oil, other fluids, and bat-
teries.
• To protect the Earth's natural resources, properly dispose of used motor and parts.

1·4 GENERALINFORMATION
IDENTIFICATION NUMBER LOCATION
MODEL, PRE-FIX, SERIAL NUMBER
The MODEL, PRE-FIX and SERIAL NUMBER of the motor are
stamped
on a plate attached to the driveshaft housing.
Example
ENGINE SERIAL NUMBER
A second engine senal number plate is pressed into a boss
on
the cylinder block.
FUEL AND OIL
GASOLINE RECOMMENDATION
Suzuki highly recommends that you use alcohol-free unleaded
Qasoline with a minimum pump octane rating of 87 (R/2 + M/2
method) or
91 (Research method). However, blends of
unleaded gasoline and alcohol with eq uivalent octane content
may
be used.
Allowable maximum blend of a single additive (not combination):
5% Methanol, 10% Ethanol, 15% MTBE
jCAUTION j
If leaded gasoline is used, engine damage may result .
Use
only unleaded gasoline .

ENGINE OIL
Use only oils that are rated SE, SF, SG, SH or SJ under the API
(American Petroleum Institute) classification system.
The viscosity rating should be SAE 1OW-40.
If an SAE 1OW-40 motor oil is not available, select an alternative
according to the chart at right.
ENGINE OIL
'C
Tompel'lllure 4j:
GENERAL INFORMATION 1-5
I I I I l
' '
I '
' ' ' I
' ' rI I I I
-30 -20 -10 0 10 20 30 40
-22 -4 14 32 50 68 86 104

1-6 GENERALINFORMATION
ENGINE BREAK-IN
The first 10 hours are. critically important to ensure correct run-
ning of either a brand new motor or a motor that has been recon-
ditioned or rebuilt. How the motor is operated during this time
will have direct bearino on its life soan and lono-term durabilitv.
Break-in period: 10 hours
WARM-UP REC.OMMENDATION
Allow sufficient idling time (more than 5 minutes) for the engine
to warm up after cold engine starting.
THROTTLE RECOMMENDATION
NOTE:
Avoid maintaining a constant engine speed for an extended
period
at any time during the engine break-in by varying the
throttle position occasionally.
1. FIRST 2 HOURS
For first 15 minutes, operate the engine in-gear at idling
speed.
During the remaining 1 hour and 45 minutes, operate the
engine in-gear at less than 1/2 (half) throttle
(3 000 r/min).
NOTE:
The throttle may be briefly opened beyond the recommended
setting
to plane the boat, b ut must be reduced to the recom-
mended setting immediately afterplaning.
2. NEXT 1 HOUR
Operate the engine in-gear
at less than 3/4
throttle (4 000 r/min).
3. LAST 7 HOURS
Operate the engine in-gear at desired engine speed.
However, do not operate continuously at full throttle for more
than 5 minutes.

PROPELLERS
An outboard motor is designed to develop its rated power within
a specified engine speed range. The maximum rated power
delivered by the DF2.5 models are shown below.
Recommended operating 5 250 - 5 750 r/min
range
If the standard propeller tails to meet the above requirement,
use another pitch propeller to hold the engine speed within the
range specified above.
Propeller selection chart
Code Number Blade x Diameter x Pitch
A400
A510
3 X
3 X
188 mm (7-3/8 in) x
188 mm (7-3/8 in) x
115 mm (4-1/2 in)
135
mm (5-3/8 in)
I CAUTION I
Installing a propeller with pitch either too high or too
low will cause incorrect maximum engine speed,
which may result in severe damage to the motor.
GENERAL INFORMATION 1-7

1·8 GENERAL INFORMATION
* SPECIFICATIONS
*These specifications are subject to change without notice.
Data
Item
Unit
DF2.5
L_ ____ ________ __.r
DIMENSIONS & WEIGHT
Overall length I
mm (in) I 437
(1 7.2): with tiller handle raised
(front to back) I
Overall width I ! 262 (10.3)
(side to side) I
mm (in)
I
Overall height ! s !
mm (in) I
963 (37.9)
--
I
I
-I
Weight ' 13.0 (28.7)
i s
kg (lbs)
(without engine oil) j
Transom height t
I
mm
I
I s (inch type) 435 (15}
PERFORMANCE
Maximum output ! kW (PS) I 1.8 (2.5)
Recommended operating '
j
r/min 5
250-5 750
range
Idle speed !
rim in
I 1 900
:t 100 (in·gear: approx. 1 500)
I
POWER HEAD
Engine type I
: 4-stroke
OHV
Number of cylinders i 1
--"J---·--·-----
Bore 1 mm (in) ) 48.0 {1.89)
Stroke J
mm (in) ! 38.0 (1.50)
'
Total displacement i (cu. in) I 68 (4.1)
I
Compression ratio ! : 1 I 9.0
Spark plug I NGK i CR6HSA
!
Ignition system I Transistorized ignition
Fuel supply system
_L
Carburetor
-
Exhaust system J ___ 1, Above prop exhaust
Cooling system I Water cooled ·-
Lubrication system I Wet sump by trochoid pump
Starting system I Manual
Choke system I Manual I
Throttle control I Twist gnp

GENERAL INFORMATION 1-9
Item Unit
Data
DF2.5
FUEL & OIL
Fuel Suzuki highly recommends that you use alcohol-free unleaded
gasoline with a minimum pump octane rating of 87 (A /2 + M/2
method) or 91 (Research method). However, blends of unleaded
gasoline and alcohol with equivalent octane content may be used.
Fuel tank capacity L 1.0 (0.26/0.22)
(Built-in tank) (US/Imp. gal)
Engine oil API classification SE, SF, SG, SH, SJ
Viscosity rating SAE 10W-40
Engine oil amounts L 0.38 (0.40/0.33)
(US/Imp. qt)
Gear oil SUZUKI Outboard Motor Gear Oil (SAE
#90 hypoid gear oil)
Gearcase oil amounts ml
60 (2.0/2.1)
(US/Imp. oz)
BRACKET
Trim angle I Degrees 6-20
Number of tilt pin position 4
Maximum tilt angle I Degrees 74 (from lowest tilt pin position)
LOWER UNIT
Reversing system Gear
Transmission Forward-Neutral
Reduction system Bevel gear
Gear ratio
13: 28 (2.15)
Drive line impact protection Shear pin
Propeller Blade x Diam. X Pitch
3 X 188 mm (7-3/8 in) X 115 mm
(4-1 /2 in) (A400)
3 X 188 mm (7-3/8 in) X 135 mm (5-3/8 in) (A51 0)

1-10 GENERAL INFORMATION
*SERVICE DATA * These service data are subject
to change without notice.
Item Unit
Data
DF2.5
POWER HEAD
Recommended operating r/min 5
250-5 750
range
Idle speed r/min 1 900 ± 100 (in-gear: approx. 1 500)
* Cylinder compression kPa
960- 1 400 (9.6 -14 .0, 137 -199)
(kg/cm2, psi)
Engine oil API classification SE,
SF , SG, SH, SJ
Viscosity rating SAE 10W-40
Engine oil amounts L (US/Imp. qt) 0.38 (0.40/0.33)
Thermostat operating
oc (Of)
48-52 (118- 126)
temperature
*Figures shown are guidelines only, not absolute service limit.
CARBURETOR
Type Walbro LMJ-26
1.0 mark 97J10
Main jet # 70
Pilot jet # 32
Pilot screw Turns open Pre-set
Float height
mm 10 ± 2
CYLINDER HEAD/CAMSHAFT
Cylinder head Limit mm (in) 0.05 (0.002)
distortion
Cam IN, STD mm (in)
28.480-28.680 (1.1213 -1.1291)
height EX Limit mm (in) 28.180 (1.1094)
Rocker IN
arm shaft
hole -STD mm (in)
4.015- 4.027 (0 . 1581 -0.1585)
diameter EX
Rocker IN
arm shaft
outside STD mm (in) 3.
990- 4.005 (0.1571 -0.1577)
diameter EX

GENERAL INFORMATION 1-11
Item Unit
Data
DF2.5
VALVENALVE GUIDE
Valve diameter IN mm (in)
20 .0 (0.79)
EX mm (in) 18.0 (0.71)
Valve
clearance
JN STD mm (in) 0.13 -0.17 (0.005 -0.007)
(Cold engine
EX STD mm (in)
0.13- 0. 17 (0.005- 0.007)
condition)
Valve
seat angle IN -45°
EX
-45°
Valve guide
IN
STD mm (in) 0.010 - 0.037 (0.0004- 0.0015)
to valve stem Limit
mm (in) 0.075 (0.0030)
clearance
STD mm (in) 0.025 -0.052 (0.001 0 - 0.0020)
EX
Limit mm (in) 0.090 (0.0035)
Valve guide IN,
inside
EX
STD mm (in) 4. 000- 4.012 (0. 1575- 0.1580)
diameter
Valve stem
IN STD mm (in)
3.975- 3.990 (0.1565- 0.1571)
outside
diameter
EX STD mm (in) 3.960- 3.975 (0.1559 - 0.1565)
Valve stem IN, Limit
mm (in) 0.
35 (0.014)
deflection EX
Valve stem IN, Limit
mm (in) 0.05 (0.002)
runout EX
Valve head IN, Limit
mm (in) 0.08 (0.003)
radial runout EX
Valve head IN, Limit mm (in) 0.5 (0.02}
thickness
EX
Valve seat IN,
STD mm (in) 0.8- 1.0 (0.03- 0.04)
contact width EX
Valve spring free
STD
mm (in) 22.42 (0.883)
length Limit
mm (in)
21 .52 (0.847}
Valve spring tension
STD
N (kg, lbs) 36.
5-41.9 (3.65- 4.19, 8. 05- 9.24) for 15 mm (0.6 in)
Limit N (kg, lbs) 33.3 (3.33, 7.34} for 15 mm
(0 .6 in)

1·12 GENERAL INFORMATION
Item Unit Data
DF2.5
CYLINDER/PISTON/PISTON RING
Cylinder distortion Limit mm (in) 0.05 (0.002)
Piston to cylinder STD
mm (in) 0.
018- 0.033 (0. 0007- 0.0013)
clearance Limit
mm (in) 0.100 (0.0039)
Cylinder bore
STD
mm (in) 48. 000- 48.015 (1 . 8898- 1.8904)
Cylinder measuring mm (in) 20 (0.8) from cylinder top surface
position
Piston skirt
STD mm (in) 47. 975-47.990 (1 . 8888- 1.8894)
diameter
Piston measuring position mm (in) 5 (0.2) from piston skirt end
Cylinder bore wear Limit mm (in) 0.100 (0.0039)
Piston ring 1st, STD
mm (in) 0.15 - 0.35 (0.006 -0.014)
end gap 2nd Limit mm (in) 0.50 (0.020)
Piston ring 1st STD mm (in) Approx. 6.1
(0 .24)
free end gap Limit mm (in) 4.9 (0.19)
2nd
STD mm (in) Approx. 5.7 (0. 22)
Limit mm (in) 4.6 (0.18)
Piston ring to 1st,
STD
mm (in)
0.020- 0.060 (0.0008 -0.0024)
groove
clearance 2nd Limit mm (in) 0.120 (0.0047)
Piston ring 1st,
STD
mm (in) 1.
21 -1.23 (0. 048- 0.049)
groove width 2nd
Oil STD mm (in) 1.51 -1.53 (0.059- 0.060)
Piston ring 1st,
STD
mm (in) 1.
17-1.19 (0. 046-0.047)
thickness 2nd
Pin clearance in STD mm (in) 0.002 - 0.013 (0.0001 - 0.0005)
piston pin hole Limit mm (in) 0.040 (0.0016)
Piston pin outside STD mm (in) 11.995- 12.000 (0.4722- 0.4724)
diameter Limit mm (in) 11.980 (0.4717)
Piston pin hole
STD
mm (in) 12 . 002- 12.008 (0.4725- 0.4728)
diameter Limit mm (in) 12.030 (0.4736)
Pin clearance in STD
mm (in) 0.006- 0 .019 (0.0002 -0.0007)
conrod small end Limit mm (in) 0.050 (0.0020)

GENERAL INFORMATION 1-13
Item Unit
Data
DF2.5
CRANKSHAFT/CONROD
Conrod small end STD mm (in)
12.006- 12.014 (0.4727 - 0.4730)
inside diameter Limit mm (in) 12.040 (0.4740)
Conrod big end STD
mm (in) 0.015- 0.035 (0 . 0006- 0.0014)
oil clearance Limit
mm (in) 0.080 (0.0031)
Conrod big end STD
mm (in) 19.015-19.025 (0.7486-0.7490)
inside diameter
Crank pin out- STD mm (in)
18.990- 19.000 (0.7476- 0.7480)
side diameter
Crank pin out-
side diameter
difference Limit mm (in) 0.010 (0.0004)
(out-of-round
and taper)
Conrod big end STD mm (in)
0.20-0.70 (0.008 - 0.028)
side clearance Limit mm (in) 1.00 (0.039)
Conrod big end STD mm (in)
17.50-17.80 (0.689- 0.701)
width
Crank pin width STD mm (in)
18.00-18.20 (0 . 709- 0.717)
Crankshaft Limit mm (in) 0.05 (0.002)
runout
ELECTRICAL
Ignition timing Degrees BTDC 30
Ignition coil Primary
nat 20 oc
0.5-0.9
resistance Sec-
ondary kQ at 20
oc 10-16
Spark plug cap resistance
kn at 20 oc
4-6
Standard spark Type NGK CR6HSA
plug Gap mm (in)
0.6- 0.7 (0.024- 0.028)
LOWER UNIT
Preliminary gear shim & thrust washer
Pinion gear backup shim mm (in) 2.0 (0.08)
Forward gear backup mm (in) 0.5 (0.02)
shim
Propeller shaft reverse mm (in) 1.8 (0.07)
thrust washer
Initial selection-shim adjustment may be required .

1·14 GENERAL INFORMATION
TIGHTENING TORQUE
Tightening torque - Important fasteners
ITEM
Cylinder head cover bolt
Cylinder head bolt
Crankcase bolt
Conrod cap bolt
Valve adjusting lock nut
Intake pipe bolt
Carburetor mounting bolt
Flywheel nut
Igniter unit bolt
Engine oil drain plug
Power unit mounting bolt
Tiller handle pivot bolt
Lower cover bolt
Swivel shaft nut
Gearcase bolt
Water pump case bolt
Propeller shaft bearing housing bolt
Tightening torque- General bolt
NOTE:
THREAD
DIAMETER
5mm
6mm
6mm
5mm
5mm
6mm
6mm
10 mm
6mm
10mm
6mm
8mm
6mm
8mm
6mm
6mm
6mm
TIGHTENING TORQUE
N·m
kg-m lb-ft
7 0.7 5.0
13 1.3 9.5
11
1.1 8.0
7 0.7 5.0
7 0.7 5.0
11 1.1 8.0
10 1.0 7.0
45 4.5 32.5
10 1.0 7.0
10 1.0 7.0
10 1.0 7.0
17 1.7 12.5
8 0.8 6.0
10 1.0 7.0
8 0.8 6.0
5 0.5 3.5
8 0.8 6.0
These value are only applicable when torque for a general bolt is not listed in the "Important fasteners" table.
TYPE OF BOLT THREAD TIGHTENING TORQUE
DIAMETER N·m
kg·m lb-ft
5mm
2-4
0.2-0.4
1.5-3.0
6mm 4-7
0.4-0.7
3.0-5.0
8mm
10-16
1.0-1.6
7.0-11.5
(Conventional or "4" marked bolt) 10mm 22-35 2.2-3.5 16.0-25.5
5mm
2-4
0.2-0.4 1.5-3.0
6mm 6-10 0.6-1.0 4.5-7.0
8mm 15-20
1.5-2.0 11.0- 14.5
(Stainless steel bolt) 10mm
34-41
3.4-4.1 24.5-29.5
5mm
3-6
0.3-0.6
2.0-4.5
6mm
8-12
0.8- 1.2 6.0-8.5
8mm 18-28 1.8-2.8 13.0-20.0
(7 marked or ....' ... marked bolt) 10mm
40-60
4.0-6.0
29.0-43.5

SPECIAL TOOLS
1.
09900-20101 (150 mm)
Vernier calipers
5.
09900-20602
Dial gauge
9.
09900-21304
Steel "V " block set
13.
09915-63311
Compression gauge
adaptor
2.
09900-20202
Micrometer (25- 50 mm)
6.
09900-20605
Dial calipers (1 0 - 34 mm)
10.
09900-22301
Plastigauge
(0.025- 0.076 mm)
14.
09915-64512
Compression gauge
3.
09900-20205
Micrometer (0- 25 mm)
7.
09900-20701
Magnetic stand
11.
09900-26006
Engine tachometer
15.
09916-10911
Valve lapper
GENERAL INFORMATION 1-15
4.
09900-20530
Cylinder gauge set
(40-80 mm)
8.
09900-20803
Thickness gauge
12.
09913-50121
Oil seal remover
16.
09921 -2021 0
Bearing remover

1·16 GENERAL INFORMATION
17.
09930-301 04
Sliding hammer
21.
09930-99320
Digital tester
25.
09952-99310
Air pump assy
NOTE :
18.
09930-40113
Flywheel holder
22.
09950·69512
Gearcase oil leakage
tester
26.
(COOP!\
99954·53008-820*
Digital voltmeter
*Marked part No. is in U. S. market DnlJL .
19.
09930·40120
Rotor holder attachment
23 .
09950-6971 0
Gear oil leakage tester
attachment
27.
99954-53883*
Gear oil filler
20.
09930-76420
Timing light
24.
e @
09951-09530
Gear adjusting gauge

I
GENERAL INFORMATION 1·17
MATERIALS REQUIRED
SUZUKI OUTBOARD
MOTOR GEAR
OIL
SUZUKI WATER RESIS- SUZUKI SILICONE SEAL SUZUKI BOND " 12078"
99000·22540
(400
ml x 24 pes.)
THREAD
LOCK " 1342"
99000-32050
(50 g)
NOTE:
TANTGREASE
99000-25161 99000-31120
{250 g) (50
g)
4-STROKE MOTOR OIL
API: SE, SF, SG, SH, SJ
SAE: 10W-40
,. Marked part No. is in U. S. market only.
*99104-33140
99000-31140
(100
g)

PERIODIC MAINTENANCE 2·1
PERIODIC MAINTENANCE
CONTENTS
PERIODIC MAINTENANCE SCHEDULE ....................................................... 2- 2
PERIODIC MAINTENANCE CHART ..................................................... 2- 2
MAINTENANCE
AND TUNE-UP PROCEDURES .....................................•..•. 2- 3
ENGINE OIL ...........................................................................................
2- 3
GEAR OIL ...............................................................................................
2- 5
LUBRICATION ....................................................................................... 2- 6
SPARK PLUG ........................................................................................ 2- 7
VALVE CLEARANCE ............................................................................ 2- 8
IDLE SPEED ...........................................................................................2-11
CARBURETOR ...................................................................................... 2-12
IGNITION TIMING .................................................................................. 2-12
BREATHER HOSE AND FUEL LINE ....................................................2-13
FUEL FILTER .........................................................................................
2-13
WATER PUMP ....................................................................................... 2-13
WATER PUMP IMPELLER ....................................................................2-13
PROPELLER
AND PIN .......................................................................... 2-14
ANODE ................................................................................................... 2-14
BOLTS AND NUTS ................................................................................2-15
CYLINDER COMPRESSION ........................................................................... 2-16

2·2 PERIODIC MAINTENANCE
PERIODIC MAINTENANCE SCHEDULE
The chart below lists the recommended intervals for all the required periodic service work necessary to
the motor operating
at peak performance and economy.
Maintenance intervals should
be judged number of hours or months, whichever comes first.
NOTE:
More frequent servicing should be performed on outboard motors that are used under severe conditions
PERIODIC MAINTENANCE
Initial 20 hrs. 50 hrs. I Every 100 hrs. 200
hr
It I
or 1 month
or 3 months
I
or 6 months or 12 montll;l
Spark plug
I -I R
I
Breather hose and I I I I I I
Fuel line I Replace every 2 years.
Engine oil R -I R R
Gear
oil R I R R
Lubrication
-I I I I
Anode
I I I I
Fuel filter
Replace every 400 hours or 2 years.
.·.
Ignition timing
I -I --I
Carburetor I I I I
Idle speed I I I - - I I
Valve clearance - -
Water pump
- - I
...
Water pump impeller ---R
Propeller and Pin I I -I I
Bolts and Nuts
! T ! T I T
1: Inspect and clean, adjust, lubricate or replace, if necessary T: R: Replace