TOHATSU MFS 5C LPG User manual


O W N E R ’S M A N U A L
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www.tohatsu.com
O W N E R’S M A N U A L
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E N            
F R                     
E S                
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OM_MFS5C_EUR_171211N_CS.indd 1 17.12.11 11:08:08 AM

OWNER’S
MANUAL
トーハツ船外機オーナーズマニュアル
Original instructions
MFS C LPG
OB No.--AH

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 © 2018 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 proce-
dures 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.
All information in this manual is based on the latest product information available at
the time of approval for printing.
Tohatsu Corporation reserves the right to make changes at any time without notice
and without incurring any obligation.
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;
zName and Address of the manufacturer.
zApplied community directives
zReference standard
zDescription of the product. (Model name and serial number)
zSignature 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 com-
pletely 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 registra-
tion.
TO THE EXTENT PERMITTED BY APPLICABLE LAW, YOUR OUTBOARD MOTOR WILL NOT
BE COVERED BY THE APPLICABLE LIMITED WARRANTY, IF THIS PROCEDURE IS NOT FOL-
LOWED.

4
ENOM00003-0
PRE-DELIVERY CHECK
Be sure that the product has been checked by an authorized TOHATSU dealer before
you take delivery.
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:
ENOF01500-1
ENOF01501-0

5
ENOM00007-0
NOTICE: DANGER/WARNING/CAUTION/Note
Before installing, operating or otherwise handling your outboard motor, be sure to thor-
oughly read and understand this Owner's Manual and carefully follow all of the instruc-
tions. 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 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14
4. LABEL LOCATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
5. INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
1. Mounting the outboard motor on boat . . . . . . . . . . . . . . . . . . . . . . . . . . . .18
2. Remote control device installation (option) . . . . . . . . . . . . . . . . . . . . . . . 20
3. Battery installation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
6. PRE-OPERATING PREPARATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
1. Fuel handling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
2. Fuel filling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
3. Engine oil recommendation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
4. Break-In . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
5. Warning system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
7. ENGINE OPERATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .27
Before starting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .27
1. Fuel feeding . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .27
2. Starting the engine . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
3. Warming up the engine . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .31
4. Forward, reverse, and acceleration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
5. Stopping the engine . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
6. Steering . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
7. Trim angle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
8. Tilt up and down . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
9. Shallow water operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .37
8. REMOVING AND CARRYING THE OUTBOARD MOTOR. . . . . . . . . . . . . . . . . . . 39
1. Removing the outboard motor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
2. Carrying the outboard motor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
3. Trailering . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
9. ADJUSTMENT. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
1. Steering friction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
2. Throttle grip friction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
10. INSPECTION AND MAINTENANCE. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
1. Daily Inspection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
2. Periodic Inspection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
3. Off-season storage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58
4. Pre-season check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59
5. Submerged outboard motor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60
6. Cold weather precautions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60
7. Striking underwater object . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61
8. Auxiliary outboard motor operation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .61
11. TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62
CONTENTS

12. TOOL KIT AND SPARE PARTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64
13. PROPELLER TABLE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65

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. TOOL KIT AND SPARE PARTS
13. PROPELLER TABLE
INDEX
2
1
3
4
5
6
7
8
9
10
11
12
13
1
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 out-
board 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 out-
board 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 Flotation 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 recom-
mended lubricants.
ENOM00011-A
MAINTENANCE
As the owner of this outboard motor, you should be acquainted with correct mainte-
nance procedures following maintenance section of this manual (See page 56). 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-D
MODEL FEATURE
*1: Option
*2: SP model equip with charging coil as a standard.
ENOM00811-D
MODEL NAME EXAMPLE
F 5 CLPGL
F5C LPG Model F5C LPG F5C LPG SP*2
Type MF MF
Transom heights
Sz
Lz z
UL z
Tiller Handle z z
Remote Control *1 (z) (z)
Manual tilt z z
F 5 C LPG L
Model
description Horse power Product generation Fuel Shaft length
F= Four stroke
D= Two stroke DI -A and up
D=Integral
(Dual) fuel tank
Blank=Separate
fuel tank
LPG=Propane
S= Short 15 in
L= Long 20 in
UL= Ultra long
25 in

SPECIFICATIONS 13
2
EENOM00401-0
*1 With propeller, with battery cable.
*2:Equipped only for SP model, the other models OPTION.
Remark: Specifications subject to change without notice.
Tohatsu outboard is power rated in accordance with ISO8665 (propeller shaft output).
MF
Item MODEL 5C
(Separate Tank) 5C SP (Separate Tank)
Overall Length mm (in) 783 (30.8)
Overall Width mm (in) 343 (13.5)
Overall Height S·L·UL mm (in)
1039 (40.9)
1166 (45.9)
1293 (50.9)
Transom Height S·L·UL mm (in) 435 (17.1) 562 (22.1) 689 (27.1)
Weight *1
S kg (lb) 27.2 (60.0)
L kg (lb) 27.7 (61.1)
UL kg (lb) – 28.2 (62.2)
Output kW (ps) 5C : 3.68 (5)
Max. Operating Range min
-1
(rpm) 5C : 5000–6000
Idle Speed in Forward
Gear
min
-1
(rpm) 1100
Idle Speed in Neutral Gear min
-1
(rpm) 1300
Engine Type 4-Stroke
Number of Cylinder 1
Bore × Stroke mm (in) 59 × 45 (2.32 × 1.77)
Piston Displacement mL (Cu in) 123 (7.5)
Exhaust System Through hub exhaust
Cooling System Water cooling
Engine Lubrication Trochoid pump
Starting System Manual starter
Ignition System Ignitor
Spark Plug NGK DCPR6E
Alternator 12V 60W 5A (Max.) *2
Trim Position 6
Engine Oil mL (fl.oz.) API SH, SJ or SL, SAE 10W-30/40, Approx. 450 (15.2)
Gear Oil mL (fl.oz.) Genuine Gear Oil or API GL5, SAE #80-90, Approx. 195 (6.6S)
Fuel Propane
Fuel connector CGA 600
Gear Reduction Ratio 2.15 (13 : 28)
Emission Control System EM (Engine modification)
Operator Sound Pressure
(ICOMIA 39/94) dB (A) 81.0
Hand Vibration Level
(ICOMIA 38/94) m/sec2 5.9

14
3
PARTS NAME
ENOM00402-A
5C
1
2
45
6
7
8
910
11
12
13
14
15
16
17
18
19 20
21
22
23
24
25
3
28
27
26
ENOF01502-B
1 Tilt Handle
2 Top Cowl
3 Bottom Cowl
4 Cooling Water Check Port
5 Tilt Lever
6 Steering Adjustment Screw
7 Anode
8 Anti Ventilation Plate
9 Propeller
10 Oil Plug (Lower) (Fill)
11 Water Inlet
12 Oil Plug (Upper) (Level)
13 Thrust Rod
14 Clamp Bracket
15 Clamp Screw
16 Throttle Grip
17 Shift Lever
18 Starter Handle
19 Choke Knob
20 Stop Switch
21 Fuel Connector
22 Warning Lamp
23 Engine Oil Filter Cap
24 Spark Plug
25 Engine Oil Drain Screw
26 Shut Off Valve
27 Regulator
28 Mixer

15
4
LABEL LOCATIONS
ENOM00019-A
Warning label locations
1, 2, 3, 4
6
7
5
ENOF01503-B

LABEL LOCATIONS16
4
1. Warning label urge to read the
owner’s manual.
2. Warning label regarding oil pressure
(See page 25).
3. Warning label regarding stop switch
(See page 33)
4. Warning label regarding fuel (See
page 22)
5. Warning regarding high temperature.
6. Warning label regarding position of
outboard motor when setting down.
7-1.Warning regarding emergency start-
ing (See page 30).
7-2.Warning regarding high temperature.
7-3.Warning regarding rotating object.
7-4.Warning regarding high voltage
ENOF00120-0
ENOF00131-0
ENOF00131-B
3PG-72185-0
3GR-76191-0
ENOF00006-0
3PA-72181-100
1
23
4

LABEL LOCATIONS 17
4
ENOM00019-B
1. Model code(Model name)
2. Rated power
3. Dry mass weight( Without propeller, with battery
cable)
4. Serial No.
5. Manufacturer name
6. Manufacturer address
CE label locations
0123
CAN ICES-2/NMB-2
Outboard Motor
Rated Power:
Mass:
Serial No.
Made in Japan
ENOF01504-1
2)
3)
4)
5)
6)
1)
Description of serial number year code
Last two digits of alphabet represent production year as below.
Year Code AG AH AK BX BA
Year of
manufacture 2017 2018 2019 2020 2021

18
5
INSTALLATION
ENOM00024-B
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
zMounting the outboard motor without
following this manual can lead to unsafe
conditions such as poor maneuverability,
lack of control or fire.
zLoose clamp screws and/or mounting
bolts can lead to the release or displace-
ment 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.
zBe sure to use outboard mounting fasten-
ers included in the outboard motor pack-
age 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.
zOutboard motor mounting must be per-
formed by trained service person(s) using
lift or hoist with sufficient capacity.
Keep the outboard motor in a vertical
position when mounting.
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. Mounting the outboard
motor on boat
WARNING
WARNING
ENOF01505-0
2
1
ENOF01141-0