TOHATSU mfs 15D, mfs 20D Owner's Manual
MANUAL
15D
20D
MFS
OWNER’S
OB No.003-11115-0
Original instructions
ENOM00001-0
READ THIS MANUAL BEFORE USING THE OUTBOARD MOTOR. FAILURE TO FOLLOW THE
INSTRUCTIONS AND SAFETY PRECAUTIONS IN THIS MANUAL CAN RESULT IN SERIOUS
INJURY OR DEATH. KEEP THIS MANUAL IN A SAFE LOCATION FOR FUTURE REFERENCE.
Copyright © 2015 Tohatsu Corporation. All rights reserved. No part of this manual may be reproduced or
transmitted in any from or by any means without the express written permission of Tohatsu Corporation.
YOUR TOHATSU OUTBOARD MOTOR
ENOM00006-A
To Yo u , O u r C u s t o m e r
Thank you for selecting a TOHATSU outboard motor. You are now the proud owner of an
excellent outboard motor that will service you for many years to come.
This manual should be read in its entirety and the inspection and maintenance procedures
described later in this manual should be followed carefully. Should a problem arise with the
outboard motor, please follow the troubleshooting procedures listed at the end of this
manual. If the problem persists, contact an authorized TOHATSU service shop or dealer.
Please always keep this manual together with the outboard motor as a reference to everyone who uses the outboard motor. If the outboard motor is resold, make sure the manual
is passed on to the next owner.
We hope you will enjoy your outboard motor and wish you good luck in your boating
adventures.
TOHATSU CORPORATION
ENOM00002-0
OWNER REGISTRATION AND IDENTIFICATION
Upon purchasing this product, be sure that the WARRANTY CARD is correctly and completely filled out and mailed to the addressee noted there on. This WARRANTY CARD
identifies you as the legal owner of the product and serves as your warranty registration.
TO THE EXTENT PERMITTED BY APPLICABLE LAW, YOUR OUTBOARD MOTOR WILL
NOT BE COVERED BY THE APPLICABLE LIMITED WARRANTY, IF THIS PROCEDURE IS
NOT FOLLOWED.
3
ENOM00003-0
PRE-DELIVERY CHECK
Be sure that the product has been checked by an authorized TOHATSU dealer before you
take delivery.
4
ENOF01201-0
ENOM00005-A
Serial Number
In the space below, please record the outboard motor's serial number (indicated both on
the bottom cowl and on the cylinder block). The serial number will be needed when ordering parts, and when making technical or warranty inquiries.
Serial Number:
ENOF01200-0
Serial Number: Date of purchase:
ENOM00007-0
NOTICE: DANGER/WARNING/CAUTION/Note
Before installing, operating or otherwise handling your outboard motor, be sure to thoroughly read and understand this Owner's Manual and carefully follow all of the instructions. Of particular importance is information preceded by the words “DANGER,”
“WARNING,” “CAUTION,” and “Note.” Always pay special attention to such information to
ensure safe operation of the outboard motor at all times.
ENOW00001-0
DANGER
Failure to observe will result in severe personal injury or death, and possibly property damage.
ENOW00002-0
WARNING
Failure to observe could result in severe personal injury or death, or property damage.
ENOW00003-0
CAUTION
Failure to observe could result in personal injury or property damage.
ENON00001-0
Note
This instruction provides special information to facilitate the use or maintenance of the outboard
motor or to clarify important points.
5
CONTENTS
1. GENERAL SAFETY INFORMATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
2. SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
3. PARTS NAME . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
4. LABEL LOCATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
5. INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
1. Mounting the outboard motor on boat . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
2. Remote control device installation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .22
3. Battery installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
6. PRE-OPERATING PREPARATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
1. Fuel handling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
2. Fuel filling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
3. Engine oil recommendation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .27
4. Break-In . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
5. Warning system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .29
7. ENGINE OPERATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Before starting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
1. Fuel feeding . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
2. Starting the engine . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .33
3. Warming up the engine . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
4. Forward, reverse, and acceleration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
5. Stopping the engine . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .42
6. Steering . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .43
7. Trim angle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .44
8. Tilt up and tilt down . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
9. Shallow water operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
8. REMOVING AND CARRYING THE OUTBOARD MOTOR. . . . . . . . . . . . . . 51
1. Removing the outboard motor. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .51
2. Carrying the outboard motor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .51
3. Traillering . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52
9. ADJUSTMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54
1. Steering friction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .54
2. Throttle grip friction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .54
3. Remote control lever friction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .54
4. Trim tab adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55
10. INSPECTION AND MAINTENANCE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56
1. Daily Inspection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57
2. Periodic Inspection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .62
3. Off-season storage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .74
4. Pre-season check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .76
5. Submerged outboard motor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .77
6. Cold weather precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .77
7. Striking underwater object. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .78
11. TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .79
12. TOOL KIT AND SPARE PARTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 81
13. PROPELLER TABLE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 82
INDEX
9
1 GENERAL SAFETY INFORMATION
2. SPECIFICATIONS
3. PARTS NAME
4. LABEL LOCATIONS
5. LABEL LOCATIONS
6. PRE-OPERATING PREPARATIONS
7. ENGINE OPERATION
8. REMOVING AND CARRYING THE
OUTBOARD MOTOR
9. ADJUSTMENT
1
2
3
4
5
6
7
8
9
10. INSPECTION AND MAINTENANCE
11. TROUBLESHOOTING
12. TOOL KIT AND SPARE PARTS
13. PROPELLER TABLE
10
11
12
13
14
14
10
GENERAL SAFETY INFORMATION
ENOM00009-0
SAFE OPERATION OF BOAT
1
As the operator/driver of the boat, you are responsible for the safety of those aboard and
those in other boat around yours, and for following local boating regulations. You should
be thoroughly knowledgeable on how to correctly operate the boat, outboard motor, and
accessories. To learn about the correct operation and maintenance of the outboard motor,
please read through this manual carefully.
It is very difficult for a person standing or floating in the water to take evasive action should
he or she see a power boat heading in his/her direction, even at a slow speed. Therefore,
when your boat is in the immediate vicinity of people in the water, the outboard motor
should be shifted to neutral and shut off.
ENOW00005-0
WARNING
SERIOUS INJURY IS LIKELY IF A PERSON IN THE WATER MAKES CONTACT WITH A MOVING BOAT, GEAR HOUSING, PROPELLER, OR ANY SOLID DEVICE RIGIDLY ATTACHED TO
A BOAT OR GEAR HOUSING.
ENOM0008-A
EMERGENCY STOP SWITCH
The Emergency Stop Switch will stall the outboard motor when the stop switch lanyard is
pulled off. This stop switch lanyard has to be attached to the operator of the outboard
motor to minimize or prevent injuries from the propeller in case the operator falls overboard.
It is operator’s responsibility to use the Emergency Stop Switch Lanyard.
ENOW00004-A
WARNING
Accidental activation of the Emergency Stop Switch (such as the tether being pulled out in
heavy seas) could cause passengers to lose their balance and even fall overboard, or it
could result in loss of power in heavy seas, strong currents, or high winds. Loss of control
while mooring is another potential hazard.
To minimize accidental activation of the Emergency Stop Switch, the 500 mm (20 inch.) stop
switch lanyard is coiled and can extended to a full 1300 mm (51 inch.).
ENOM00800-A
PERSONAL FLOATATION DEVICE
As the operator/driver and passenger of the boat, you are responsible to wear a PFD (Personal Floatation Device) while on the boat.
GENERAL SAFETY INFORMATION 11
ENOM00010-0
SERVICING, REPLACEMENT PARTS & LUBRICANTS
We recommend that only an authorized service shop perform service or maintenance on
this outboard motor. Be sure to use genuine parts, genuine lubricants, or recommended
lubricants.
ENOM00011-A
MAINTENANCE
As the owner of this outboard motor, you should be acquainted with correct maintenance
procedures following maintenance section of this manual (See page 61). It is the operator's responsibility to perform all safety checks and to ensure that all lubrication and maintenance instructions are complied with for safe operation. Please comply with all
instructions concerning lubrication and maintenance. You should take the engine to an
authorized dealer or service shop for periodic inspection at the prescribed intervals.
Correct periodic maintenance and proper care of this outboard motor will reduce the
chance of problems and limit overall operating expenses.
Carbon Monoxide Poisoning Hazard
Exhaust gas contains carbon monoxide, a colorless and odorless gas which can be fatal if
inhaled for any length of time.
Never start or operate the engine indoors or in any space which is not well ventilated.
Gasoline
Gasoline and its vapors are very flammable and can be explosive. Use extreme care when
handling gasoline. You should be thoroughly knowledgeable on how to correctly handle
gasoline by reading this manual.
1
12
SPECIFICATIONS
ENOM00810-A
MODEL FEATURE
Model FS15D FS20D
2
Ty pe MF EF EFT EP EPT MF EF EFT EP EPT
Transom heights
Tiller Handle z z z z z z
Remote Control z z z z
Power Tilt z z z z
Mnual tilt z z z z z z
ENOM00811-A
MODEL NAME EXAMPLE
F 20D EPTL
MFS 20 D E P T L
S z z z z z z z z z z
L z z z z z z z z z z
UL z z z z z z z z
Model descrip-
tion
F= Four stroke
D= Two stroke DI
Horse
power
Product
generation
- A and up
Starter
system
E= Electrical
start
M= Manual start
Steering
system
P= Remote
Control (Plea-
sure)
F= Tiller handle
(Fisher)
Tilt system Shaft length
T= Power
trim&tilt
G= Gas assist
Blank= Manual
tilt
S= Short 15 in
L= Long 20 in
UL= Ultra long
25 in
ENOM00301-0
MF, EF, EFT
SPECIFICATIONS 13
Item MODEL
Overall Length mm (in) 1055 (41.5)
Overall Width mm (in) 365 (14.4)
Overall Height S·L·UL mm (in) 1085 (42.7) 1325 (48.6) 1362 (53.6)
Transom Height S·L·UL mm (in) 413 (16.3) 562 (22.1) 669 (27.1)
S kg (lb) 52 (115) 55.5 (122) 62.5 (138)
Weight*1
Output kW (ps) 15D : 11.0 (15) 20D : 14.7 (20)
Max. Operating Range rpm
Idle Speed in Forward Gear
Idle Speed in Neutral Gear rpm 950
Engine Type 4-Stroke
Number of Cylinder 2
Bore × Stroke mm (in) 61 × 60 (2.40 × 2.36)
Piston Displacement mL (Cu in) 351 (21.42)
Exhaust System Through hub exhaust
Cooling System Water cooling
Engine Lubrication Trochoid pump
Starting System Manual Electric starter motor*
Ignition System Flywheel Magneto C.D. ignition
Spark Plug NGK DCPR6E
Tri m Po sit ion 6
Engine Oil mL (fl.oz.) API SF, SG, SH, SJ, SL 10W-30, Approx. 1000 (33.8)
Gear Oil mL (fl.oz.) Genuine Gear Oil or API GL5, SAE #80-90, Approx. 370 (12.5)
Fuel
Fuel Tank Capacity L (US gal) 12 (3.17)
Gear Reduction Ratio 2.15 (13 : 28)
Emission Control System EM (Engine modification)
Operator Sound Pressure
(ICOMIA 39/94) dB (A)
Hand Vibration Level
(ICOMIA 38/94) m/sec2
Remark: Specifications subject to change without notice.
*1 With propeller, with battery cable.
Tohatsu outboard is power rated in accordance with ISO8665 (propeller shaft output).
L kg (lb) 53.5 (118) 57.0 (126) 64.0 (141)
UL kg (lb) 55 (121) 58.5 (129) 65.5 (144)
rpm 900
MF
Unleaded regular gasoline : Pump posted
87 Octane (research octane rating of 91)
15D/20D
EF
15D: 5000-6000
20D: 5400-6100
83.9
2.5
EFT
2
SPECIFICATIONS14
ENOM00302-0
EP, EPT
Item MODEL
2
Overall Length mm (in) 640 (25.2)
Overall Width mm (in) 350 (13.8)
Overall Height S·L·UL mm (in) 1085 (42.7) 1235 (48.6) 1362 (53.6)
Transom Height S·L·UL mm (in) 413 (16.3) 562 (22.1) 689 (27.1)
S kg (lb) 54.5 (120) 61.5 (136)
Weight
Output kW (ps) 15D: 11.0 (15) 20D: 14.7 (20)
Max. Operating Range rpm
Idle Speed in Forward
Gear
Idle Speed in Neutral Gear rpm 950
Engine Type 4-Stroke
Number of Cylinder 2
Bore × Stroke mm (in) 61 × 60 (2.40 × 2.36)
Piston Displacement mL (Cu in) 351 (21.42)
Exhaust System Through hub exhaust
Cooling System Water cooling
Engine Lubrication Trochoid pump
Startring System Electric starter motor with manual*
Ignition System Flywheel Magneto C.D. ignition
Spark Plug NGK DCPR6E
Tri m Po sit ion 6 5
Engine Oil mL (fl.oz.) API SF, SG, SH, SJ, SL 10W-30/40, Approx. 1000 (33.8)
Gear Oil mL (fl.oz.) Genuine Gear Oil or API GL5, SAE #80-90, Approx. 370 (12.5)
Fuel
Fuel Tank Capacity L (US gal) 12 (3.17)
Gear Reduction Ratio 2.15 (13 : 28)
Emission Control System EM (Engine modification)
Operator Sound Pressure
(ICOMIA 39/94) dB (A)
Hand Vibration Level
(ICOMIA 38/94) m/sec2
Remark: Specifications subject to change without notice.
*1 With propeller, with battery cable.
Tohatsu outboard is power rated in accordance with ISO8665 (propeller shaft output).
L kg (lb) 56 (123) 63 (139)
UL kg (lb) 57.5 (127) —
rpm 900
EP EPT
Unleaded regular gasoline: Pump posted
87 Octane (research octane rating of 91)
15D/20D
15D: 5000-6000
20D: 5400-6100
83.9
—
PARTS NAME
ENOM00303-0
MF, EF, EP, EFT, EPT
15
10
11
1
18
17
19
20
21
3
2
3
16
4
5
6
15
14
13
12
23
7
8
9
25
24
26
29
22
1
Tilt Handle
2
Top C owl
3
Bottom Cowl
4
Cooling Water Check Port
5
Power Tilt Switch
(EPT and EFT type only)
6
Oil Drain Bolt
7
Anti Ventilation Plate
8
Anode/Trim Tab
9
Sub Water Inlet
10
Water Inle t
11
Propeller
27
28
ENOF01202-0
12
Drive Shaft Housing
13
Thrust Rod
14
Clamp Bracket
15
*1
Clamp Screw
16
Throttle Grip
17
Shift Lever
18
Starter Handle
19
Stop Switch
20
Warning Lamp
21
Fuel Connector
22
Starter Switch
23
Choke Knob
*2
*2
*3
*2
24
Water Plug
25
Oil Plug (Upper) (Level)
26
Oil Plug (Lower) (Fill)
27
Oil Filter
28
Spark Pulg
29
Oil Filter Cap
*1: Power tilt type only.
*2: Tiller handle type only.
*3: Electrical starter type only.
PARTS NAME16
MF, EF, EP, EFT, EPT
36
3
34
35
38
30
Primer Bulb
31
Fuel Tank Cap
32
Air Vent Screw
33
Fuel Connector
34
Fuel Pick up Elbow
35
Fuel Tank
36
Clamp Screw
37
Power Tilt
38
Power Tilt Switch
39
Remote Control Box
40
Main Switch
41
Stop Switch
*1
43
32
31
33
37
Power Tilt Type
30
*5
*4
39
40
44
41
42
42
Cord Assembly
43
Engine Stop Switch Cord
44
Power Tilt Switch
*4: Power tilt, tiller handle type only.
*5: Remote control type only.
*4
*5
*5
*5
*5
*5
*5
ENOF01203-0
LABEL LOCATIONS
ENOM00019-A
Warning label locations
17
2
5
6
7
1
3, 4
8
4
ENOF01204-0
LABEL LOCATIONS18
ENOF00120-0
ENOF00131-B
ENOF00131-0
ENOF00006-0
1.
Warning label urge to read the owner’s
manual .
5.
Warning label regarding position of
outboard motor when setting down.
2-1. Warning regarding emergency start-
ing (See page 36).
2-2. Warning regarding high temperature.
2-3. Warning regarding rotating object.
4
2-4. Warning regarding high voltage
4
1
3.
Warning label regarding stop switch
(See page 34, 35, 43, 43)
4.
Warning label regarding oil pressure
(See page 29).
3
ENOF00005-R
For RC model
6.
Warning label regarding stop switch
lanyard.
ENOF00005-D
7.
Warning regarding gasoline (See
page 26).
2
S
ENOF00005-
8.
Warning regarding gasoline (See
page 26).
ENOF00005-L
ENOM00019-B
:rewoP detaR
rotoM draobtuO
.oN laireS
:ssaM
napaJ
n
i
ed
aM
CE label locations
1. Model code(Model name)
2. Rated power
3. Dry mass weight( Without propeller, with battery
cable)
4. Product year
5. Serial No.
6. Manufacture adress
7. Manufacture name
1)
2)
3)
4)
6)
7)
LABEL LOCATIONS 19
5)
4
ENOF01237-0
20
ENOF01206-0
INSTALLATION
ENOM00024-A
1. Mounting the outboard motor on
boat
ENOW00006-B
WARNING
Before installing the outboard motor on the
boat, hang the outboard motor with the
hoist or equivalent device by attaching the
engine hanger to the outboard. Use the
hoist with allowable load is 150 kg (330 lbs)
or above.
5
Do not operate the outboard motor until it
has been securely mounted on the boat in
accordance with the instructions below.
ENOW00009-0
WARNING
z Mounting the outboard motor without
following this manual can lead to unsafe
conditions such as poor maneuverability, lack of control or fire.
z Loose clamp screws and/or mounting
bolts can lead to the release or displacement of the outboard motor, possibly
resulting in lost of control and/or serious
personal injury. Be sure that fasteners
are tightened to the specified torque (30
Nm (3.0 kgf) 13 ft-lb). Check the fasteners for tightness from time to time.
z Be sure to use outboard mounting fas-
teners included in the outboard motor
package or their equivalents in terms of
size, material, quality and strength.
Tighten fasteners to the specified torque
(30 Nm (3.0 kgf) 13 ft-lb). Test cruise to
check if fasteners are tightened
securely.
z Outboard motor mounting must be per-
formed by trained service person(s)
using lift or hoist with sufficient capacity.
ENOW00006-0
WARNING
Most boats are rated and certified in terms
of their maximum allowable horsepower,
as shown on the boat’s certification plate.
Do not equip your boat with an outboard
motor that exceeds this limit. If in doubt,
contact your dealer.
Outboard motor mounting must be performed by trained service person(s) using
lift or hoist with sufficient capacity.
INSTALLATION 21
1
2
5−25 mm
(0.2−1 in)
ENOF01208-0
ENOM00025-0
Position ... Above keel line
Set engine at center of boat.
1
2
ENOF01141-0
1. Center of boat
2. Boat transom
ENOM00026-0
Transom matching
Be sure that the anti ventilation plate of the
outboard motor is 5–25 mm (0.2–1 in)
below the bottom of hull.
If the above condition cannot be met due
to the shape of the bottom of your boat,
please consult your authorized dealer.
water surface is near the bottom cowling, in high waves, water may enter the
engine cylinders.
z Incorrect outboard motor mounting
height or existence of underwater
object(s), such as hull bottom design,
bottom surface conditions or underwater accessories, can cause water spray
possibly reaching the engine through an
opening of the bottom cowling during
cruising. Exposing the engine to such
conditions for extended periods can
lead to severe engine damage.
ENOM00830-A
Mounting bolts
Manual tilt type
1. To attach the outboard motor to the
boat, tighten the clamp screws by
turning their handles.
Also, use the bolts to secure the outboard motor brackets on transom
board.
Secure the outboard motor with a rope
to prevent loss overboard.
ENON00002-0
Note
A rope is not included in the standard
accessories.
5
1. Bottom of hull
2. Anti ventilation plate
ENOW00007-0
CAUTION
z Before beginning the running test, check
that the boat with maximum capacity
loading floats on the water in a proper
attitude. Check the position of water
surface on the driveshaft housing. If the
1. Bolt (8 × 85)
2. Nut
3. Washe r
4. Clamp screw
2
1
3
4
ENOF00016-0
INSTALLATION22
4
1
A
2
5
3
ENOF00308-0
3
1, 2
ENOF00841-0
PTT type
1. To attach the outboard motor to the
boat, use the bolts to secure the outboard motor brackets on transom
board.
5
1. Bolt (12 × 105)
2. Washer (small diameter)
3. Nut
4. Washer (large diameter)
194
152
64
187
193
View A
ENOW00008-A
CAUTION
z Mounting bolts should be installed with
the bolt head at inside surface of the
12-
∅
ENOF00305-0
transom. Mounting bolts installed with
the threaded end at the inside surface of
the transom can cause personal injury.
z Tighten the bolts sufficiency, otherwise
falling down of outboard could be happened.
ENON00003-0
Notes
1. Apply sealing agent, such as silicone
sealed between the bolts and the transom board holes before tightening the
bolts.
2. Be sure to tighten the mounting bolt
nuts to the specified torque.
(30 Nm (3.0 kgf) 13 ft-lb)
ENOM00840-0
2. Remote control device
installation
ENOW00100-A
CAUTION
Be careful not to loop the remote control
cables to a diameter of 406 mm (16 inches)
or less. Otherwise, it affects the service life
of the cable.
51
1818
188
275
10
∅
1818
11
36
ENOW00850-0
Remote control box location
Install the remote control box in a position
where it is easy to reach and operate the
INSTALLATION 23
controls.
Make sure there are no obstacles that can
interfere with the operation of the remote
control cable.
1. Shift cable
2. Throttle cable
3. Cable harness B
ENOW00850-0
Remote control cable length
ENOF00842-0
Measure the distance from the remote
control box to the outboard motor where
the remote control cable should be routed.
Prepare a cable that is 300-450mm (11.8-
17.7in) longer than the measured distance.
Temporarily pull the cable along the
intended cable route to check its length is
sufficient.
Connect the remote control cable to the
engine, then run the cable to the remote
control box, making sure it is not sharply
bent, too taut and free from obstructions
that could interfere with steering.
ENOM00029-A
3. Battery installation
ENOW00012-0
WARNING
Battery electrolyte contains sulfuric acid
and thus is hazardous, causing a burn if it
comes in contact with your skin, or poisonous if swallowed.
Keep battery and electrolyte away from
reach of children
When handling the battery, be sure to:
z Read all warnings shown on the battery
case
z Prevent electrolyte from coming in con-
tact with any part of your body. Contact
can cause serious burn or, if it comes in
contact with your eye, loss of sight. Use
safety glasses and rubber gloves.
In case battery electrolyte comes in contact with:
z Skin, flush thoroughly with water.
z Eye, flush thoroughly with water, and
then seek immediate medical treatment.
In case battery electrolyte is swallowed:
z Seek immediate medical treatment.
ENOW00013-A
WARNING
Battery generates explosive hydrogen gas.
Be sure to:
z Charge the battery in a well-ventilated
place.
z Place the battery away from any source
of fire, sparks and open flames such as
burners or welding equipment.
z Do not smoke near the battery when the
battery is charging.
z Do not charge the battery when the
electrolyte level is low. Otherwise, the
battery will be damaged and may cause
malfunction.
ENOW00014-0
CAUTION
z Make sure that the battery leads do not
get stuck between the outboard motor
and boat when turning, etc.
z The starter motor may fail to operate if
the leads are incorrectly connected.
5
INSTALLATION24
2
1
ENOF00022-0
z Be sure to correctly connect the (+) and
(—) leads. If not, the charging system
will be damaged.
z Do not disconnect the battery leads
from battery while the engine is operating, the electrical parts could be damaged.
z Always use a fully charged battery.
ENOW00015-0
CAUTION
Do not use a battery that is not recommended. Use of a battery not recommended can lead to poor performance of,
and/or damage to, the electrical system.
5
ENON00006-A
Note
Recommended battery: 12V 70AH/5HR,
650 (Cold Cranking Amps (CCA), In case of
cold whether: 12V100AH/5HR (850CCA))
Specifications and features of batteries vary
among the manufacturers. Consult the
manufacturer for details.
* The battery should be purchased separately and is not supplied with the outboard
motor.
1. Place the battery box in a convenient
position away from possible water
spray. Securely fasten both the box
and the battery so they do not shake
loose.
2. Connect the positive lead (+) to the
positive terminal (+) of the battery, and
then connect the negative lead (—).
When disconnecting the battery
always remove the negative lead (—)
first. After connecting the positive terminal (+), securely place a cap on it to
prevent short circuits.
1. Battery cord (red)
2. Battery cord (black)
PRE-OPERATING PREPARATIONS
25
ENOM00030-A
1. Fuel handling
ENOW000017-0
CAUTION
Use of improper gasoline can damage your
engine. Engine damage resulting from the
use of improper gasoline is considered
misuse of the engine, and damage caused
thereby will not be covered under the limited warranty.
ENOM00031-A
FUEL RATING
TOHATSU engines will operate satisfactorily when using a major brand of unleaded
gasoline meeting the following specifications:
USA and Canada — having a posted
pump Octane Rating of 87 (R+M)/2 minimum. Premium gasoline (92 [R+M]/2
Octane) is also acceptable. Do not use
leaded gasoline.
Outside USA and Canada — Use
unleaded gasoline with declared octane
rating of 91 RON or over. Use of premium
gasoline of 98 RON is also allowed.
these adverse effects are caused because
the ethanol in the gasoline can absorb
moisture from the air, resulting in a separation of the water/ethanol from the gasoline
in the fuel tank.
These may cause increased:
z Corrosion of metal parts
z Deterioration of rubber or plastic parts
z Fuel permeation through rubber fuel
lines
z Starting and operating difficulties
If the use of gasoline containing alcohol is
inevitable, or presence of alcohol is suspected in the gasoline, it is recommended
to add a filter that has water separating
capability, and check the fuel system for
leaks and mechanical parts for corrosion
and abnormal wear more frequently.
And, in case any of such abnormality is
found, discontinue the use of such gasoline and contact our dealer immediately.
If the outboard motor will only be used
infrequently, please see the remarks on
fuel deterioration in the STORAGE chapter
(P 78) for additional information.
ENOW00020-0
6
ENOM00032-A
GASOLINES CONTAINING
ALCOHOL
The fuel system components on your
TOHATSU engine will withstand up to 10%
ethyl alcohol (hererinafter referred to as the
"ethanol"), content in the gasoline. But if
the gasoline in your area contains ethanol,
you should be aware of certain adverse
effects that can occur. Increasing the percentage of ethanol in the fuel can also
worsen these adverse effects. Some of
CAUTION
When operating a TOHATSU engine on
gasoline containing alcohol, storage of
gasoline in the fuel tank for long periods
should be avoided. Long periods of storage, common to boats, create unique problems. In cars, alcohol blend fuels normally
are consumed before they can absorb
enough moisture to cause trouble, but
boats often sit idle long enough for phase
separation to take place. In addition, internal corrosion may take place during stor-
PRE-OPERATING PREPARATIONS26
age if alcohol has washed protective oil
films from internal components.
ENOW00018-0
WARNING
Fuel leakage can cause fire or explosion,
potentially leading to severe injury or loss
of life. Every fuel system part should be
checked periodically, and especially after
long term storage, for fuel leak, change of
hardness of rubber, expansion and/or corrosion of metals. In case any indication of
fuel leakage or degradation of fuel part is
found, replace relevant part immediately
before continuing operation.
ENOW00019-0
6
Do not fill the fuel tank over capacity. The
rise of gasoline temperature may cause
gasoline to expand which, if overfilled, may
leak through air vent screw when it is open.
Leaking gasoline is a dangerous fire hazard.
ENOM00043-B
2. Fuel filling
WARNING
When or before refueling:
z Be sure to remove the static electricity
charged in your body before refueling.
z The sparks due to static electricity may
cause explosion of flammable gasoline.
z Stop the engine, and do not start the
engine during refueling.
z Do not smoke.
z Be careful not to overfill fuel tank. Wipe
up any spilled gasoline immediately.
When or before cleaning the gasoline tank:
z Dismount fuel tank from the boat.
z Place the fuel tank away from every
source of ignition, such as sparks or
open flames.
z Do the work outdoors or in a well venti-
lated area.
z Wipe off gasoline well immediately if
spilled.
z
After cleaning gasoline tank:
z Wipe off gasoline well immediately if
spilled.
z If the fuel tank is disassembled for
cleaning, reassemble carefully. Imperfect assembly may cause a fuel leak,
possibly leading to fire or explosion.
z Dispose aged or contaminated gasoline
in accordance with local regulations.
ENOW00028-A
WARNING
Consult an authorized dealer for details on
handling gasoline, if necessary.
Gasoline and its vapors are very flammable
and can be explosive.
When carrying a fuel tank containing gasoline:
z Close the fuel tank cap and air vent
screw of fuel tank cap, or gasoline vapor
will be emitted through the air vent
screw, creating a fire hazard.
z Do not smoke.
EENOW00029-A
WARNING
When opening fuel tank cap, be sure to follow the procedure described below. Fuel
could blast out through the fuel tank cap in
case the cap is loosened by using another
procedure when internal pressure of fuel
tank is raised by heat from sources such as
sun light.
1. Full open the air vent screw on the tank
cap and release internal pressure.
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