TOHATSU MFS 25C, MFS 30C Owner's Manual
MANUAL
MFS 25C
MFS 30C
OWNER’S
OB No.003-11117-2AF1
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 © 2016 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.
3
YOUR TOHATSU OUTBOARD MOTOR
ENOM00006-A
To You, Our Customer
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
ENOM00113-0
EC DECLARATION OF CONFORMITY (DoC)
This product conforms to certain portion of the European Parliament directive. DoC contains the following information;
z Name and Address of the manufacturer.
z Applied community directives
z Reference standard
z Description of the product. (Model name and serial number)
z Signature of the responsible person (Name / Title / Date and place of issue).
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.
ENOM00003-0
PRE-DELIVERY CHECK
Be sure that the product has been checked by an authorized TOHATSU dealer before you
take delivery.
4
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:
Serial Number: Date of purchase:
ENOF01100-0
ENOF01101-0
5
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
Failure to observe will result in severe personal injury or death, and possibly property damage.
ENOW00002-0
Failure to observe could result in severe personal injury or death, or property damage.
ENOW00003-0
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.
DANGER
WARNING
CAUTION
1. GENERAL SAFETY INFORMATION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
2. SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
3. PARTS NAME . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
4. LABEL LOCATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
5. INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
1. Mounting the outboard motor on boat . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
2. Remote control device installation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
3. Battery installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .26
4. TOCS (Tohatsu Onboard Communication System) installation. . . . . . . . . 27
6. PRE-OPERATING PREPARATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .28
1. Fuel handling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
2. Fuel filling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .29
3. Engine oil recommendation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .30
4. Break-In . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
5. Warning system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .32
7. ENGINE OPERATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .35
Before starting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
1. Fuel feeding . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
2. Starting the engine . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
3. Warming up the engine . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .42
4. Forward, reverse, and acceleration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
5. Stopping the engine . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
6. Steering . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
7. Trim angle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .48
8. Tilt up and down . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .50
9. Shallow water operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .53
8. REMOVING AND CARRYING THE OUTBOARD MOTOR. . . . . . . . . . . . . . 55
1. Removing the outboard motor. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55
2. Carrying the outboard motor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .55
3. Traillering . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56
9. ADJUSTMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58
1. Steering friction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58
2. Throttle grip friction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58
3. Remote control lever friction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58
4. Trim tab adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59
10. INSPECTION AND MAINTENANCE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60
1. Daily Inspection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61
2. Periodic Inspection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .66
3. Off-season storage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .78
4. Pre-season check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 81
5. Submerged outboard motor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 81
6. Cold weather precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 82
7. Striking underwater object. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 82
CONTENTS
8. Operation with multiple outboard motors . . . . . . . . . . . . . . . . . . . . . . . . . 82
11. TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 83
12. ACCESSORIES KIT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 85
13. PROPELLER TABLE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .86
9
1 GENERAL SAFETY INFORMATION
2. SPECIFICATIONS
3. PARTS NAME
4. LABEL LOCATIONS
5. INSTALLATION
6. PRE-OPERATING PREPARATIONS
7. ENGINE OPERATION
8. REMOVING AND CARRYING THE
OUTBOARD MOTOR
9. ADJUSTMENT
10.INSPECTION AND MAINTENANCE
11.TROUBLESHOOTING
12.ACCESSORIES KIT
13.PROPELLER TABLE
INDEX
2
14
3
4
5
6
7
8
9
10
11
12
13
14
1
10
1
GENERAL SAFETY INFORMATION
ENOM00009-0
SAFE OPERATION OF BOAT
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
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
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 in.) stop
switch lanyard is coiled and can extended to a full 1300 mm (51 in.).
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.
WARNING
WARNING
GENERAL SAFETY INFORMATION 11
1
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.
12
2
SPECIFICATIONS
ENOM00810-A
MODEL FEATURE
*1: Option
ENOM00811-A
MODEL NAME EXAMPLE
F 30C EPTL
Model F25C F30C
Ty pe MF EP EPT MF EP EPT
Transom heights
S z z z z z z
L z z z z z z
Tiller Handle z z
Multi-function tiller handle (z)*1 (z)*1 (z)*1 (z)*1
Remote Control z z z z
Power Tilt z z
Gas-assisted tilt
Mnual tilt z z z z
F 30 C E P T L
Model descrip-
tion
Horse
power
Product
generation
Starter
system
Steering
system
Tilt system Shaft length
F= Four stroke
D= Two stroke DI
- A and up
E= Electrical
start
M= Manual start
P=Remote control
(Pleasure)
F=Tiller handle
(Fisher)
*Multi-function tiller
handle is available as
an optional part
T= Power
trim&tilt
G= Gas assist
Blank= Manual
tilt
S= Short 15 in
L= Long 20 in
UL= Ultra long
25 in
SPECIFICATIONS 13
2
ENOM00013-0
Remark: Specifications subject to change without notice.
*1 Without propeller, with battery cable.
*2 With manual
Tohatsu outboard is power rated in accordance with ISO8665 (propeller shaft output).
MF, E, EP
Item MODEL
25C/30C
MF
E
(with multi-
function tiller
handle : option)
EP
Overall Length mm (in) 1038 (40.9) 1303 (52.3) 726 (28.6)
Overall Width mm (in) 411 (16.2)
Overall Height S·L mm (in) 1189(46.8) 1337 (52.6)
Transom Height S·L mm (in) 404 (15.9) 552 (21.7)
Weight*1
S kg (lb) 71.5 (158) 77.0 (170) 73 (161)
L kg (lb) 73 (161) 78.5 (173) 74.5 (164)
Output kW (ps) 25C : 18.4 (25) 30C : 22.1 (30)
Max. Operating Range min
-1
(rpm) 25C : 5000–6000 30C : 5250–6250
Idle Speed min
-1
(rpm) 850 ±30
Engine Type 4-Stroke EFI
Number of Cylinder 3
Bore × Stroke mm (in) 61 × 60 (2.40 × 2.36)
Piston Displacement cm3 (Cu in) 526 (32.09)
Exhaust System Through hub exhaust
Cooling System Water cooling
Lubrication System Trochoid pump
Starting System Manual Electric starter motor*2
Ignition System Flywheel Magneto C.D. ignition
Spark Plug NGK DCPR6E
Trim Position 6
Engine Oil mL (fl.oz.) API SH, SJ or SL, 10W-30/40 Approx. 1800 (63.3)
Gear Oil mL (fl.oz.) Genuine Gear Oil or API GL5,SAE #80-90, Approx. 360 (12.2)
Fuel
Unleaded regular gasoline : Pump posted
87 Octane (research octane rating of 91)
Fuel Tank Capacity L (US gal) 25 (6.60)
Gear Reduction Ratio 2.17 (12 : 26)
Emission Control System MFI (Multiport Fuel Injection - EFI Electronic Fuel Injection)
Operator Sound Pressure
(ICOMIA 39/94) dB (A)
79.2
Hand Vibration Level
(ICOMIA 38/94) m/s
2
5.3 —
SPECIFICATIONS14
2
ENOM00015-0
Remark: Specifications subject to change without notice.
*1 Without propeller, with battery cable.
*2 With manual
Tohatsu outboard is power rated in accordance with ISO8665 (propeller shaft output).
ET (with multi-function tiller handle), EPT
Item MODEL
25C/30C
ET
(with multi-function tiller
handle : option)
EPT
Overall Length mm (in) 1303 (52.3) 726 (28.6)
Overall Width mm (in) 411 (16.2)
Overall Height S·L mm (in) 1189 (46.8) 1337 (52.6)
Transom Height S·L mm (in) 404 (15.9) 552 (21.7)
Weight*1
S kg (lb) 85 (187) 81 (179)
L kg (lb) 86.5 (191) 82.5 (182)
Output kW (ps) 25C : 18.4 (25) 30C : 22.1 (30)
Max. Operating Range min
-1
(rpm) 25C : 5000–6000 30C : 5250–6250
Idle Speed min
-1
(rpm) 850 ±30
Engine Type 4-Stroke EFI
Number of Cylinder 3
Bore × Stroke mm (in) 61 × 60 (2.40 × 2.36)
Piston Displacement cm3 (Cu in) 526 (32.09)
Exhaust System Through hub exhaust
Cooling System Water cooling
Lubrication System Trochoid pump
Starting System Electric starter motor*2
Ignition System Flywheel Magneto C.D. ignition
Spark Plug NGK DCPR6E
Trim Position 4
Engine Oil mL (fl.oz.) API SH, SJ or SL, 10W-30/40 Approx. 1800 (63.3)
Gear Oil mL (fl.oz.) Genuine Gear Oil or API GL5, SAE #80-90, Approx. 360 (12.2)
Fuel
Unleaded regular gasoline : Pump posted
87 Octane (research octane rating of 91)
Fuel Tank Capacity L (US gal) 25 (6.60)
Gear Reduction Ratio 2.17 (12 : 26)
Emission Control System MFI (Multiport Fuel Injection - EFI Electronic Fuel Injection)
Operator Sound Pressure
(ICOMIA 39/94) dB (A)
79.2
Hand Vibration Level
(ICOMIA 38/94) m/s
2
5.3 —
15
3
PARTS NAME
ENOM00820-0
MF
1
2
3
4
5
7
9
10
19
18
17
16
15
14
12
11
25
24
27
26
28
21
23
22
20
6
8
13
ENOF01135-0
1
Tilt Handle
2
Top C ow l
3
Bottom Cowl
4
Cooling Water Check Port
5
Oil Drain Plug
6
Anti-ventilation Plate
7
Trim Tab
8
Sub-water Inlet
9
Propeller
10
Oil Plug (Lower)
11
Cooling Water Inlet
12
Oil Plug (Upper)
13
Splash Plate
14
Anode
15
Clamp Bracket
16
Clamp Screw
17
Tiller Handle
18
Throttle Grip
19
Shift Lever
20
Ricoil Starter Handle
21
Oil Filter
22
Fuel Filter
23
Spark Plug
24
Oil Filler Cap
25
Flushing Connector Cap
26
Warning Lamp
27
Stop Switch
28
Stop Switch Lanyard
PARTS NAME16
3
ENOM00020-0
E (with multi-function tiller handle), EP
1
2
3
4
5
7
9
10
21
16
15
14
12
11
22
18
20
28
17
30
29
27
23
25
24
6
8
13
19
26
ENOF01136-0
1
Tilt Handle
2
Top C ow l
3
Bottom Cowl
4
Cooling Water Check Port
5
Oil Drain Plug
6
Anti-ventilation Plate
7
Trim Tab
8
Sub-water Inlet
9
Propeller
10
Oil Plug (Lower)
11
Cooling Water Inlet
12
Oil Plug (Upper)
13
Splash Plate
14
Anode
15
Clamp Bracket
16
Clamp Screw
17
Stop Switch
18
PT Switch *1
19
Key Switch
20
Shift Lever
21
Throttle Grip
22
Ricoil Starter Handle
23
Oil Filter
24
Fuel Filter
25
Spark Plug
26
Oil Filler Cap
27
Flushing Connector Cap
28
Warning Lamp
29
Multi-function Tiller handle *2
30
Stop Switch Lanyard
*1: Not for use
*2: Option
PARTS NAME 17
3
ENOM00020-0
ET (with multi-function tiller handle), EPT
1
2
3
4
6
8
10
11
22
17
16
15
13
12
23
21
5
29
18
31
30
28
24
26
25
7
9
14
20
19
32
27
ENOF01137-0
1
Tilt Handle
2
Top C ow l
3
Bottom Cowl
4
Cooling Water Check Port
5
PT Switch
6
Oil Drain Plug
7
Anti-ventilation Plate
8
Trim Tab
9
Sub-water Inlet
10
Propeller
11
Oil Plug (Lower)
12
Cooling Water Inlet
13
Oil Plug (Upper)
14
Splash Plate
15
Anode
16
Clamp Bracket
17
Clamp Screw
18
Stop Switch
19
PT Switch
20
Key Switch
21
Shift Lever
22
Throttle Grip
23
Ricoil Starter Handle
24
Oil Filter
25
Fuel Filter
26
Spark Plug
27
Oil Filler Cap
28
Flushing Connector Cap
29
Warning Lamp
30
Multi-function Tiller handle *1
31
Stop Switch Lanyard
32
Power Trim & Tilt
*1: Option
PARTS NAME18
3
3
1
2
4
5
6
7
8
10
9
14
13
12
11
ENOF00127-C
ENOM00822-0
Remote control box & Fuel tank
1
Control Lever
2
Neutral lock arm
3
PTT switch
4
Free throttle lever
5
Main switch
6
Stop switch
7
Stop switch lock
8
Stop switch lanyard
9
Fuel gauge
10
Air vent screw
11
Fuel tank cap
12
Fuel connector (Engine side)
13
Primer bulb
14
Fuel connector (Fuel tank side)
19
4
LABEL LOCATIONS
ENOM00019-A
Warning label locations
1
2
10
11
9
8
7
6
3
4
5
ENOF01134-0
LABEL LOCATIONS20
4
1.
Warning label urge to read the owner’s
manual .
2-1. Warning regarding emergency start-
ing (See page 40).
2-2. Warning regarding high temperature.
2-3. Warning regarding rotating object.
2-4. Warning regarding high voltage
3.
Warning label regarding engine failure/
malfunction (See page 32).
4.
Warning label regarding stop switch
(See page 38,46 and 47)
5.
Warning label regarding position of
outboard motor when setting down.
For tiller handle model
6. Warning label regarding stop switch
(See page 38 and page 46,47)
For RC model
7.
Warning label regarding stop switch
lanyard.
8.
Warning regarding gasoline.
9.
Warning regarding gasoline (See
page 28).
ENOF00120-0
ENOF00005-R
1
2
3
4
ENOF00130-0
ENOF00131-B
ENOF00006-0
ENOF00005-P
ENOF00005-D
ENOF00005-E
ENOF00005-L
LABEL LOCATIONS 21
4
10.
Warning regarding gasoline (See
page 28).
11.
Warning regarding gasoline (See
page 28).
ENOF00005-M
ENOF00005-F
LABEL LOCATIONS22
4
ENOM00019-B
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 name
7. Manufacture address
CE label locations
:rewoP detaR
rotoM draobtuO
.oN laire
S
:ssaM
napaJ
n
i
ed
aM
ENOF01129-0
2)
3)
4)
5)
6)
7)
1)
23
5
INSTALLATION
ENOM00024-A
ENOW00006-B
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.
ENOW00006-0
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.
Do not operate the outboard motor until it
has been securely mounted on the boat in
accordance with the instructions below.
ENOW00009-0
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
N·m (3.0 kgf·m) 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 N·m (3.0 kgf·m) 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.
Outboard motor mounting must be performed by trained service person(s) using
lift or hoist with sufficient capacity.
1. Mounting the outboard motor on
boat
WARNING
WARNING
&/0'
WARNING
INSTALLATION24
5
ENOM00025-0
Position ... Above keel line
Set engine at center of boat.
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.
1. Bottom of hull
2. Anti ventilation plate
ENOW00007-0
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
water surface is near the bottom cowl-
ing, 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.
1. Bolt (8 × 85)
2. Nut
3. Washer
4. Clamp screw
CAUTION
2
1
ENOF01141-0
1
2
5−25 mm
(0.2−1 in)
ENOF01142-0
1
4
2
3
ENOF00016-0
INSTALLATION 25
5
ENOW00945-0
z Please inspect whether there is a loos-
ening of the clamp screw or mounting
bolts before departure.
z Loosening may cause a dangerous situ-
ation, such as loss of control.
PTT type
1. To attach the outboard motor to the
boat, use the bolts to secure the outboard motor brackets on transom
board.
1. Bolt (12 × 105)
2. Washer (small diameter)
3. Nut
4. Washer (large diameter)
ENOW00008-A
z Mounting bolts should be installed with
the bolt head at inside surface of the
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 N·m (3.0 kgf·m) 13 ft·lb)
ENOM00840-0
ENOW00850-0
Remote control box location
1. Shift cable
2. Throttle cable
3. Cable harness B
Install the remote control box in a position
where it is easy to reach and operate the
controls.
Make sure there are no obstacles that can
interfere with the operation of the remote
CAUTION
3
1
4
2
ENOF00017-A
351 (13.82)
251 (9.88)
125.5
253.5 (9.98)
51 (2.01)
56 (2.2)
163.5 163.5
Ø12.5
Ø12.5
327 (12.87)
18 (0.17)
125.5
ENOF00018-A
CAUTION
2. Remote control device
installation
3
1, 2
ENOF00841-0
INSTALLATION26
5
control cable.
ENOW00850-0
Remote control cable length
ENOW00100-A
Be careful not to loop the remote control
cables to a diameter of 406 mm (16 in) or
less. Otherwise, it affects the service life of
the cable.
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
ENOW00012-0
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
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.
CAUTION
ENOF00842-0
3. Battery installation
WARNING
WARNING
INSTALLATION 27
5
ENOW00014-0
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.
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
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.
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)
ENOM00971-0
TOCS (Tohatsu Onboard Communication
System) interface coupler can provide
information regarding engine speed, fuel
consumption, and various malfunction via
an optional interface cable. Contact authorized Tohatsu dealer for more detail.
CAUTION
CAUTION
4. TOCS (Tohatsu Onboard
Communication System)
installation
2
1
ENOF00022-0
ENOF01146-0
28
6
PRE-OPERATING PREPARATIONS
ENOM00030-A
ENOW000017-0
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.
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
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
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 storage if alcohol has washed protective oil
films from internal components.
1. Fuel handling
CAUTION
CAUTION
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