TOHATSU MFS 2.5B User manual

MANUAL
2.5B
3.5B
MFS
OWNER’S
OB No.003-11085-7
MFS2.5-3.5B_EN.book Page 1 Wednesday, December 5, 2012 10:36 AM

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 © 2009-2012 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.
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3
YOUR TOHATSU OUTBOARD MOTOR
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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 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.
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PRE-DELIVERY CHECK
Be sure that the product has been checked by an authorized TOHATSU dealer before you
take delivery.
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Limited Warranty
Please refer to the TOHATSU outboard motor Limited warranty provided to you with this
product, the terms and conditions of which, as amended from time to time, are incorpo-
rated by reference into the manual.
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4
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Serial Number
In the space below, please record the outboard motor’s serial number (indicated both on
the lower motor cover and on the cylinder block). The serial number will be needed in the
event of theft or to quickly identifying the outboard motor type.
Serial Number:
ENOM00006-0
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.
We hope you will enjoy your outboard motor and wish you good luck in your boating
adventures.
TOHATSU CORPORATION
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GENERAL SAFETY INFORMATION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8
1. SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10
2. NAMES OF PARTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11
3. LOCATIONS OF WARNING LABELS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
4. INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14
1. Mounting the outboard motor on boat . . . . . . . . . . . . . . . . . . . . . . . . . . .14
5. PRE-OPERATING PREPARATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16
1. Recommended gasoline types . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16
2. Low permeation fuel hose requirement . . . . . . . . . . . . . . . . . . . . . . . . . . .17
EQUIPPED FOR UNITED STATES AND CANADA MODEL
3. EPA pressurized fuel tank requirements . . . . . . . . . . . . . . . . . . . . . . . . . . 18
EQUIPPED FOR UNITED STATES AND CANADA MODEL
4. Recommended engine oil . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18
5. Altitude adjustment kit requirement. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
6. Break-In . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
7. ESG (A device preventing over revolution). . . . . . . . . . . . . . . . . . . . . . . . . 21
6. ENGINE OPERATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Before starting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
1. Filling the fuel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
2. Feeding the fuel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .24
3. Starting. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .24
4. Warming up the engine . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
5. Forward and reverse . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
6. Stopping. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .30
7. Trim angle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .31
8. Tilt up, tilt down . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
9. Outboard motor position in tilt up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .33
7. REMOVING AND CARRYING THE OUTBOARD MOTOR. . . . . . . . . . . . . . 34
1. Removing the outboard motor. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .34
2. Carrying the outboard motor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .34
3. Storing the outboard motor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .34
8. TRAILERING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .35
9. ADJUSTMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .36
1. Steering friction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
2. Throttle grip . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .36
10. INSPECTION AND MAINTENANCE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
1. Daily Inspection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
2. Periodic Inspection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .43
3. Off-season storage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .46
4. Pre-season check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .47
5. Motor submerged in water. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
6. Cold weather precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
7. Checking after striking underwater object. . . . . . . . . . . . . . . . . . . . . . . . .48
CONTENTS
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11. TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .49
12. TOOL KIT AND SPARE PARTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51
13. OPTIONAL ACCESSORIES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .52
14. PROPELLER TABLE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .53
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7
GENERAL SAFETY INFORMATION
1. SPECIFICATIONS
2. NAMES OF PARTS
3. LOCATIONS OF WARNING LABELS
4. INSTALLATION
5. PRE-OPERATING PREPARATIONS
6. ENGINE OPERATION
7. REMOVING AND CARRYING THE
OUTBOARD MOTOR
8. TRAILERING
9. ADJUSTMENT
10.INSPECTION AND MAINTENANCE
11.TROUBLESHOOTING
12.TOOL KIT AND SPARE PARTS
13.OPTIONAL ACCESSORIES
14.PROPELLER TABLE
INDEX
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8GENERAL SAFETY INFORMATION
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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 dam-
age.
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.
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EMERGENCY STOP SWITCH
The Emergency Stop Switch will stall the outboard motor when the stop switch tether is
pulled off. This stop switch tether can be attached to the operator of the outboard motor
to minimize or prevent injuries from the propeller in case the operator falls overboard.
We highly recommend use of the Emergency Stop Switch tether.
ENOW00004-0
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 tether is coiled and can extended to a full 1300 mm (51 inch.).
DANGER
WARNING
CAUTION
WARNING
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GENERAL SAFETY INFORMATION 9
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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 MOV-
ING BOAT, GEAR HOUSING, PROPELLER, OR ANY SOLID DEVICE RIGIDLY ATTACHED TO
A BOAT OR GEAR HOUSING.
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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.
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MAINTENANCE
As the owner of this outboard motor, you should be acquainted with correct maintenance
procedures. 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 pre-
scribed intervals.
Correct periodic maintenance and proper care of this outboard motor will reduce the
chance of problems and limit overall operating expenses.
ENOM00012-0
MOUNTING
Outboard motor mounting must be performed by trained service person(s) using lift or
hoist with sufficient capacity.
WARNING
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10 SPECIFICATIONS
EENOM00201-0
Remark: Specifications subject to change without notice.
2.5B, 3.5B
Item MODEL 2.5B 3.5B
Overall Length mm (in) 690 (27.2)
Overall Width mm (in) 363 (14.3)
Overall Height S·L mm (in) Except for USA and Canada model 1026 (40.4) 1153 (45.4)
For USA and Canada model 1040 (40.9) 1167 (45.9)
Transom Height S·L mm (in) 435 (17.1) 562 (22.1)
Weight S·L kg (lb) 18.4 (41) 19.4 (43)
Output kW (ps) 1.8 (2.5) 2.6 (3.5)
Max. Operating Range rpm 4500–5500 5000–6000
Idle Speed in Forward Gear rpm 1200
Idle Speed in Neutral Gear rpm 1300
Engine Type 4-Stroke
Number of Cylinder 1
Bore × Stroke mm (in) 55 × 36 (2.17 × 1.42)
Piston Displacement mL (Cu in) 85.5 (5.2)
Exhaust System Above propeller exhaust
Cooling System Water cooling
Engine Lubrication Splashing system
Starting System Manual starter
Ignition System Ignitor
Spark Plug NGK DCPR6E
Trim Position 4
Engine Oil mL (fl.oz.) NMMA FC-W certified 10W-30 or
API SF, SG, SH, SJ, SL or SM, Approx. 300 (10)
Gear Oil mL (fl.oz.) Genuine Gear Oil or API GL5, SAE #80-90, Approx. 180 (6.1)
Fuel Unleaded regular gasoline : Pump posted 87 Octane
(research octane rating of 91)
Clutch Dog clutch system (F-N)
Fuel Tank Capacity L (US gal) 1.0 (0.26) Integral tank
Gear Reduction Ratio 2.15 (13 : 28)
Emission Control System EM (Engine modification)
Operator Sound Pressure
(ICOMIA 39/94) dB (A) 80.1
Hand Vibration Level
(ICOMIA 38/94) m/sec2 8.9
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