Yamaha F40a Outboard Service Repair Manual Pid Range 6bg 1000001 Current Mfg April 2005 And Newer N

F40

SERVICE MANUAL LIT-18616-03-15

6BG-28197-1L-11

Preface This manual has been prepared by Yamaha primarily for use by Yamaha dealers and their trained mechanics when performing maintenance procedures and repairs to Yamaha equipment. It has been written to suit the needs of persons who have the Bronze Technical Certificate of YTA (Yamaha Technical Academy) marine or the equivalent basic understanding of the mechanical and electrical concepts and procedures inherent in the work, for without such knowledge attempted repairs or service to the equipment could render it unsafe or unfit for use.

Because Yamaha has a policy of continuously improving its products, models may differ in detail from the descriptions and illustrations given in this publication. Use only the latest edition of this manual. Authorized Yamaha dealers are notified periodically of modifications and significant changes in specifications and procedures, and these are incorporated in successive editions of this manual. Also, up-to-date parts information is available on YPEC-web. Additional information and upto-date information on Yamaha products and services are available on Yamaha Service Portal.

Important information Particularly important information is distinguished in this manual by the following notations: The Safety Alert Symbol means ATTENTION! BECOME ALERT! YOUR SAFETY IS INVOLVED!

A WARNING indicates a hazardous situation which, if not avoided, could result in death or serious injury.

A NOTICE indicates special precautions that must be taken to avoid damages to the outboard motor or other property.

TIP: A TIP provides key information to make procedures easier or clearer.

F40 SERVICE MANUAL Š2008 by Yamaha Motor Corporation, U.S.A. 1st Edition, November 2008 All rights reserved.

Any reprinting or unauthorized use without the written permission of Yamaha Motor Corporation, U.S.A. is expressly prohibited.

Printed in U.S.A. LIT-18616-03-15

Contents General information

GEN INFO

0

Specification

SPEC

1

Technical features and description

TECH FEA

2

Rigging information

RIG GING

3

Troubleshooting

TRBL SHTG

4

Electrical system

ELEC

5

Fuel system

FUEL

6

Power unit

POWR

7

Lower unit

LOWR

8

Bracket unit

BRKT

9

Maintenance

MNT

10

Index Appendix

A

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GEN INFO

General information Safety while working ........................................................... 0-1 Rotating part .............................................................................. 0-1 Hot part ...................................................................................... 0-1 Electric shock ............................................................................ 0-1 Propeller .................................................................................... 0-1 Handling of gasoline .................................................................. 0-1 Ventilation .................................................................................. 0-1 Self-protection ........................................................................... 0-2 Working with crane .................................................................... 0-2 Handling of burner ..................................................................... 0-2 Part, lubricant, and sealant ........................................................ 0-2 Handling of sealant .................................................................... 0-2 Special service tool ................................................................... 0-3 Tightening torque ...................................................................... 0-3 Non-reusable part ...................................................................... 0-3 Disassembly and assembly ....................................................... 0-3

How to use this manual ........................................................... 0-4 Manual format ........................................................................... 0-4 Abbreviation .............................................................................. 0-5

Sealant and locking agent ...................................................... 0-6 Symbol ...................................................................................... 0-6

Special service tool .................................................................. 0-7

0

0 1 2 3 4 5 6 7 8 9 10

A

GEN INFO

General information

Safety while working To prevent an accident or injury and to ensure quality service, follow the safety procedures provided below.

Rotating part • Hands, feet, hair, jewelry, clothing, Personal flotation device straps, and so on can become entangled with internal rotating parts of the engine, resulting in serious injury or death.

• Keep the top cowling in place whenever possible. Do not remove or replace the cowling with the engine running.

• Only operate the engine with the cowling removed according to the specific instructions in the manual. Keep hands, feet, hair, jewelry, clothing, Personal flotation device straps, and so on away from any exposed moving parts.

Handling of gasoline • Gasoline is highly flammable. Keep gasoline and all flammable products away from heat, sparks, and open flames.

• Gasoline is poisonous and can cause injury or death. Handle gasoline with care. Never siphon gasoline by mouth. If you happen to swallow some gasoline or inhale a lot of gasoline vapor, or get some gasoline in your eyes, see your doctor immediately. If gasoline spills on your skin, wash with soap and water. If gasoline spills on your clothing, change your clothes.

Hot part During and after operation, engine parts are hot enough to cause burns. Avoid touching any parts under the top cowling until the engine has cooled.

Electric shock Do not touch any electrical parts while starting or operating the engine. They can cause shock or electrocution.

Propeller Do not hold the propeller with your hands when loosening or tightening it.

0-1

Ventilation • Gasoline vapor and exhaust gas are heavier than air and extremely poisonous. If inhaled in large quantities they may cause loss of consciousness and death within a short time.

• When test running an engine indoors (example: in a water tank), make sure to do so where adequate ventilation can be maintained.

Safety while working

Self-protection

Handling of burner

• Protect your eyes by wearing safety glasses or safety goggles during all operations involving drilling and grinding, or when using an air compressor.

• Protect your hands and feet by wearing protective gloves and safety shoes when necessary.

• Incorrect handling of burner may result in burns. Refer to the operation manual issued by the manufacturer to assure the correct handling.

• When using a burner, keep it away from the gasoline and oil, to prevent a fire.

• Components become hot enough to cause burns. Do not touch them directly.

0 1 2 3 4

Working with crane • Outboard motors weighing 18.0 kg (39.7 lb) and over must be carried by a crane.

• Use a wire rope of adequate strength, and lift up the outboard motor with the three point suspension.

• If the outboard motor does not have three or more points to be suspended, support it with additional ropes or the like so that the outboard motor can be lifted and carried in a stable manner.

Part, lubricant, and sealant Use only genuine Yamaha parts, lubricants, and sealants or those recommended by Yamaha, when servicing or repairing the outboard motor.

5 6 7 8

Handling of sealant • Wear protective gloves to protect your skin, when using the sealants.

• Refer to the material data sheet issued by the manufacturer. Some of the sealants may be harmful for human health.

9 10

A 0-2

GEN INFO

General information

Special service tool

Disassembly and assembly

Use the recommended special service tools to work safety, and to protect parts from damage.

• Use compressed air to remove dust and dirt during disassembly.

• Apply engine oil to the contact surfaces of moving parts before assembly.

Tightening torque Follow the tightening torque specifications provided throughout the manual. When tightening nuts, bolts, and screws, tighten the large sizes first, and tighten fasteners starting in the center and moving outward.

Non-reusable part Always use new gaskets, seals, O-rings, cotter pins, and so on, when installing or assembling parts.

0-3

• Install bearings with the manufacture identification mark in the direction indicated in the installation procedure. In addition, be sure to lubricate the bearings liberally.

• Apply a thin coat of water-resistant grease to the lip and periphery of an oil seal before installation.

• Check that moving parts operate normally after assembly.

Safety while working / How to use this manual

How to use this manual Manual format The format of this manual has been designed to make service procedures clear and easy to understand. Use the information below as a guide for effective and quality service.

• Parts are shown and detailed in an exploded diagram and are listed in the component list (see a in the figure below for an example page).

• The component list consists of part names and quantities, as well as bolt and screw dimensions (see b in the figure below).

• Symbols are used to indicate important aspects of a procedure, such as the grade of lubricant and lubrication point (see c in the figure below).

• Tightening torque specifications are provided in the exploded diagrams (see d in the figure below for an example), and in the related detailed instructions. Some torque specifications are listed in stages as torque figures or angles in degrees.

• Separate procedures and illustrations are used to explain the details of removal, checking, and installation where necessary (see e in the figure below for an example page).

0 1 2 3

TIP: For troubleshooting procedures, see Chapter 4, “Troubleshooting.”

c LOWR

d

4

a

5

Lower unit

Lower unit 35 N·m (3.5 kgf·m, 25.8 ft·lb)

9

10

7

6

7 8 5

6

13

4

Drive shaft and lower case

11

5

h

15 16

2

14 a

12

f

f

17

g

18

e

g

19

21

TIP:

b

c

3 Driver rod SL f: 90890-06602 Needle bearing attachment g: 90890-06614 Bearing depth plate h: 90890-06603

3 1

2 3

9 N·m (0.9 kgf·m, 6.6 ft·lb)

No. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17

Part name Drain screw Gasket Bolt Check screw Dowel Hose nipple Plastic tie Hose Nipple Bolt Lower unit Anode Propeller nut Cotter pin Washer Washer Propeller

3

Q’ty 1 2 4 1 2 1 2 1 1 1 1 1 1 1 1 1 1

20 Installation depth a: 182.5–183.0 mm (7.19–7.20 in)

40 N·m (4.0 kgf·m, 29.5 ft·lb)

9 N·m (0.9 kgf·m, 6.6 ft·lb)

TIP:

Remarks

• Install a new needle bearing with the identification mark b facing toward the water pump side.

When using the driver rod, do not strike the special service tool in a manner that will force the stopper c out of place.

Not reusable M10 x 40 mm

Not reusable

5. Heat the installation area of the taper roller bearing outer race in the lower case with a gas torch, and then install the drive shaft sleeve i, original shim(s) (T3) j and a new taper roller bearing outer race k. NOTICE: When heating the lower case, heat the entire installation area evenly. Otherwise, the paint on the lower case could be burned.

M8 x 35 mm

Not reusable

Install the drive shaft sleeve with the protrusion d facing forward.

Do not reuse a shim if deformed or scratched.

6. While holding the special service tool c, strike the tool to check that the taper roller bearing outer race is installed properly. If a high-pitched metallic sound is produced when the special service tool is struck, the outer race is installed properly.

d

8-1

1

c l l

7

2 3

c

4

8

5 Driver rod LL c: 90890-06605 Bearing outer race attachment l: 90890-06627

6

7. Install the water inlet covers m, n, the nut o and the water inlet cover screw p, and then tighten the water inlet cover screw p to the specified torque.

m n

p

9

7 8

o k j

0

9

10

i

10 Water inlet cover screw p: 1 N·m (0.1 kgf·m, 0.7 ft·lb)

Assembling the forward gear

b

1. Install a new taper roller bearing a.

A

e

8-16

A 0-4

GEN INFO

General information

Abbreviation The following abbreviations are used in this service manual.

Abbreviation ABYC API ATDC BTDC CARB CCA C/E ECM EPA EX F IC IN ISC MCA N P.O.N. PORT PTT R RC SAE SOHC STBD TDC TPS W/F

0-5

Description American Boat and Yacht Council American Petroleum Institute After Top Dead Center Before Top Dead Center California Air Resources Board Cold Cranking Ampere Check Engine Electronic Control Module Environmental Protection Agency Exhaust Forward Integrated Circuit Intake Idle Speed Control Marine Cranking Ampere Neutral Pump Octane Number = (RON+Motor Octane Number) / 2 Port side Power Trim and Tilt Reverse Reserve Capacity Society of Automotive Engineers Single Overhead Camshaft Starboard side Top Dead Center Throttle Position Sensor Water in Fuel

How to use this manual / Sealant and locking agent

Sealant and locking agent Symbol Symbols in an exploded diagram or illustration indicate the grade of lubricant and the lubrication points.

Symbol

Name Yamaha 4-stroke motor oil

Application Lubricant

Gear oil

Lubricant

Water resistant grease (Yamaha grease A)

Lubricant

Molybdenum disulfide grease

Lubricant

Corrosion resistant grease (Yamaha grease D)

Lubricant

Low temperature resistant grease (Yamaha grease C)

Lubricant

0 1 2 3 4 5

Symbols in an exploded diagram or illustration indicate the type of sealant or thread locking agent and the application points.

Symbol

Name Gasket Maker

Application Sealant

6

ThreeBond 1104J

Sealant

7

ThreeBond 1322

Sealant

8

ThreeBond 1377B

Thread locking agent

ThreeBond 1401

Thread locking agent

LOCTITE 271 (red)

Thread locking agent

LOCTITE 242 (blue)

Thread locking agent

9 10

A 0-6

GEN INFO Symbol

General information Name LOCTITE 572 (white)

Application Sealant

Silicone sealant

Sealant

Special service tool For U.S.A. and Canada Special tools numbered “YB-*****� are distributed by K & L. Special tools with Yamaha parts number (90890-*****) are distributed by the Parts Division.

Drilling plate 90890-06783

Digital multimeter YU-34899-A

YDIS (CD-ROM, Ver. 1.32) 60V-WS853-05

Peak volt adapter YU-39991

YDIS (KIT) 60V-85300-05

Test harness (8 pins) YB-06879

Diagnostic test lead YB-06795

Test harness (3 pins) YB-06869

0-7

Sealant and locking agent / Special service tool Pressure/vacuum tester YB-35956-A

Test harness (2 pins) YB-06867

0 1 Test harness (3 pins) YB-06870

Fuel pressure gauge adapter YW-06842

2 3 Test harness (2 pins) YB-06887

Fuel pressure gauge YB-06766

4 5

Spark checker YM-34487

6

Compression gauge YU-33223

7 8 Test harness (2 pins) YB-06861

Flywheel magnet holder YB-06139

9 10

A 0-8

GEN INFO

General information

Universal puller YB-06117

Valve guide reamer YM-01196

Crankshaft holder YW-06355

Neway valve seat kit YB-91044

Valve spring compressor YM-04019

Driver handle (large) YB-06071

Valve attachment YB-06320

Bearing/oil seal depth plate YB-06110

Valve guide remover YB-06801

Piston ring compressor YM-08037

0-9

Special service tool Slide hammer YB-06096

Bearing inner race attachment 90890-06639

0 1 Bearing puller legs YB-06523

Bearing cup installer YB-06167

2 3 Bearing housing needle bearing remover YB-06112

Drive shaft holder YB-06079

4 5

Bearing housing bearing/installer YB-06111

6

Pinion nut holder 90890-06715

7 8 Oil seal installer YB-06168

Bearing splitter plate YB-06219

9 10

A 0-10

GEN INFO

General information Bearing installer YB-06016

Roller bearing installer/remover YB-06432

Driveshaft installer YB-06063

needle

bearing

remover/

Bearing housing puller YB-06234

Forward gear outer race installer YB-41446

Drive shaft installer YB-06063

needle

bearing

Shift rod push arm YB-06052

remover/

Backlash indicator rod YB-06265

Backlash adjustment plate YB-07003 Forward gear bearing installer YB-06270-A

0-11

Special service tool Dial indicator gauge YU-03097

Driver handle (small) YB-06229

0 1 Magnetic base stand YU-A8438

Crankshaft seal installer YB-06349

2 3 Pinion height gauge 90890-06668

Driveshaft needle bearing installer and remover YB-06230

4 5

Reverse gear bearing remover YB-41707

6 PTT cylinder wrench YB-06175-2B

7 8

Pinion gear bushing installer YB-06029-4

9 10

A 0-12

SPEC

Specification Model features ............................................................................ 1-1 General feature ......................................................................... 1-1 Model designation ..................................................................... 1-2 Serial number ............................................................................ 1-2

Model data ................................................................................... 1-3 Dimension and Weight .............................................................. 1-3 Performance .............................................................................. 1-3 Power unit ................................................................................. 1-3 Lower unit .................................................................................. 1-4 Bracket unit ............................................................................... 1-4 Fuel and oil requirement ............................................................ 1-4 Battery requirement ................................................................... 1-5 PTT requirement ....................................................................... 1-5

Electrical technical data .......................................................... 1-5 Ignition timing control system .................................................... 1-5 Fuel injection control system ..................................................... 1-6 Engine speed control system .................................................... 1-6 PTT system ............................................................................... 1-7 Charging system ....................................................................... 1-7 Starting system .......................................................................... 1-7 Gauge / sensor .......................................................................... 1-8

Fuel system technical data ..................................................... 1-8 Fuel system ............................................................................... 1-8

Power unit technical data ....................................................... 1-9 Power unit ................................................................................. 1-9 Cylinder head assembly .......................................................... 1-10 Crankcase assembly ............................................................... 1-11

Lower unit technical data ...................................................... 1-12 Lower unit assembly ................................................................ 1-12

Bracket unit technical data ................................................... 1-12 PTT system ............................................................................. 1-12

Special tightening torque ...................................................... 1-12 Electrical system ..................................................................... 1-12 Fuel system ............................................................................. 1-13 Power unit ............................................................................... 1-13 Lower unit ................................................................................ 1-14 Tiller handle model .................................................................. 1-14 Bracket unit ............................................................................. 1-15

1

PTT unit ................................................................................... 1-15 Optional equipment ................................................................. 1-15

General tightening torque ..................................................... 1-16

0 1 2

4 5 6 7 8 9 10

A

SPEC

Specification

Model features General feature F40 Overall features • Electronic fuel injected, 4-stroke, L3, SOHC, 6-valve, 747.0 cm3 (45.6 cu. in) engine • Low emission in compliance with US EPA and US CARB 3-STAR emission standards • Command Link Multifunction Meter (option) a Power unit • Multipoint electronic fuel injection • Single throttle body • Long intake manifold • Blowby gas reburning system • Fuel cooler • Closed fuel vapor gas system • One piece top cowling with water draining air intake duct • Speed sensor and water pressure sensor (option)

a b

c d

b Electrical • Variable trolling speed control (tiller handle model or Command Link Multifunction Meter equipped model) • Alert systems including low oil pressure, overheat, and water detection • New YDIS 1.32 version • Start-in-gear protection c Bracket unit • Long span mounts • Small and compact PTT (PTT model) • High-pressure gas-assisted hydro tilt (hydro tilt model) • Multifunction tiller handle d Upper case • Labyrinth idle exhaust system e Lower unit • Lower unit equivalent to that of a one-classhigher model

1-1

e

Model features

Model designation

F 40 L E H A a

b

c

a b

Model description Model name

c

Transom height

d

f

1

F: 4-stroke regular rotation 40: 40 S: S (15 in) L: L (20 in) E: Electric starter Blank: PTT and electric starter H: Tiller handle Blank: Remote control Blank: Hydro tilt A: A and up

d Functions e f

e

0

Product generation

2 3 4

Serial number The outboard motor serial number is stamped on a label attached to the port clamp bracket.

Model name

Approved model code

F40EHA F40EA F40A

6BG

Starting serial No. 1000001– 1000001– 1000001–

5 6 7 8

c

a

9

d

b YAMAHA MOTOR CO., LTD. MADE IN JAPAN PAYS D'ORIGINE JAPON

10

a Model name b Approved model code c Transom height d Serial number

A 1-2

SPEC

Specification

Model data Dimension and Weight Item Overall length Overall width Overall height (S) (L) Boat transom height (S) (L) Weight (without propeller) (S) (L)

Unit

Model F40EHA

F40EA

F40A

mm (in) mm (in)

1362.0 (53.6)

mm (in) mm (in)

1228.0 (48.3) 1350.0 (53.1) —

— 1350.0 (53.1)

mm (in) mm (in)

414.0 (16.3) 536.0 (21.1) —

— 536.0 (21.1)

97.1 (214.1) 102.7 (226.4)

— 99.6 (219.6)

kg (lb) kg (lb)

717.0 (28.2) 384.0 (15.1)

92.1 (203.4) —

Performance Item Maximum output Full throttle operating range Maximum fuel consumption Engine idle speed

Unit kW (HP) r/min L (US gal, Imp gal)/hr r/min

Model F40EHA

F40EA

F40A

29.2 (40) at 5500 r/min 5000–6000 13.6 (3.6, 3.0) at 5500 r/min 750–850

Power unit Item Type Cylinder quantity Total displacement Bore × stroke Compression ratio Control system Starting system Fuel system Ignition control system Advance type Maximum generator output Spark plug Firing order Cooling system Exhaust system Lubrication system

1-3

Unit

cm³ (cu. in) mm (in)

V, A

Model F40EHA

F40EA

F40A

4-stroke, SOHC L 3 747.0 (45.6) 65.0 × 75.0 (2.56 × 2.95) 9.40 : 1 Tiller handle Remote control Electric Fuel injection CDI (built-in to the engine ECM) Microcomputer 12.0, 17.0 DPR6EB-9 (NGK) 1–2–3 Water Propeller boss Wet sump

Model data

Lower unit Item

Unit

Model F40EHA

Gear shift positions Gear ratio Reduction gear type Clutch type Propeller shaft type Propeller direction (rear view) Propeller mark

F40EA

F40A

0

F-N-R 2.00 (26/13) Spiral bevel gear Dog clutch Spline Clockwise G

1 2

Bracket unit Item

Unit

Trim angle (at 12º boat transom) Tilt-up angle Steering angle Trim and tilt system

Degree Degree Degree

Model F40EHA

F40EA

3

F40A

–3 to 16 65

66

4

40 + 40 Hydro

PTT

Fuel and oil requirement Item Fuel type Fuel minimum rating

Unit PON

Engine oil Engine oil grade (*1)

API SAE

5

Model F40EHA

F40EA

F40A

Regular unleaded gasoline 85 YAMALUBE 4-M FC-W oil or 4-stroke motor oil with combination of the following SAE and API oil classifications SE, SF, SG, SH, SJ, or SL 5W-30, 10W-30, or 10W-40

Total engine oil quantity without oil filter replacement with oil filter replacement

L (US qt, Imp qt) L (US qt, Imp qt)

Gear oil type Gear oil grade(*2) Gear oil quantity

API SAE L (US qt, Imp qt)

6 7 8

1.5 (1.59, 1.32) 1.7 (1.80, 1.50)

9

Hypoid gear oil GL-4 90

10

0.430 (0.455, 0.378)

(*1) If the recommended engine oil grades are not available, use engine oil with an API classification of SH, SJ, or SL and an SAE classification of 15W-40, 20W-40, or 20W-50. (*2) Meeting both API and SAE requirements.

A 1-4

SPEC

Specification

Battery requirement Item Minimum cold cranking amps CCA/SAE Minimum marine cranking amps MCA/ABYC Minimum reserve capacity RC/SAE

Unit

Model F40EHA

F40EA

A

380.0

A

502.0

Minutes

124

F40A

PTT requirement Item

Unit

Model F40EHA

Fluid type

F40EA

—

F40A

ATF Dexron II

Electrical technical data Ignition timing control system Item Engine ECM Output peak voltage at cranking (unloaded) Spark plug cap Resistance (*1) at 20 °C (68 °F) Ignition coil Primary coil resistance (*1) at 20 °C (68 °F) Secondary coil resistance at 20 °C (68 °F) Pulser coil Output peak voltage at cranking (unloaded) at cranking (loaded) at 1500 r/min (loaded) at 3500 r/min (loaded) Resistance at 20 °C (68 °F) Air gap Thermo sensor Input voltage Resistance (*1) at 20 °C (68 °F) at 75 °C (167 °F) at 90 °C (194 °F)

1-5

Unit

Model F40EHA

F40EA

V

100.0

kΩ

5.0

Ω

0.1789–0.2415

kΩ

3.256–4.884

V V V V

5.0 2.7 6.5 9.8

Ω mm (in)

152.0–228.0 0.35–1.35 (0.014–0.053)

V

4.75–5.25

kΩ kΩ Ω

26.460 0.370 240.3

F40A

Model data / Electrical technical data Item Neutral switch Input voltage (*1) Spark plug Gap

Unit

Model F40EHA

F40EA

V

11.1

mm (in)

0.8–0.9 (0.032–0.035)

F40A

0 1

(*1) The figures are for reference only.

Fuel injection control system Item Water detection switch Input voltage Float height (*1) Fuel injector Input voltage Resistance (*1) at 20 °C (68 °F) High-pressure fuel pump Input voltage Resistance (*1) at 20 °C (68 °F) Vapor shut-off valve Input voltage Resistance at 20 °C (68 °F)

Unit

Model F40EHA

F40EA

V mm (in)

4.75–5.25 19.4 (0.74)

V

12.0

Ω

12.0

V

12.0

Ω

1.4–1.7

V

12.0

Ω

30.0–34.0

2

F40A

3 4 5 6

(*1) The figures are for reference only.

7

Engine speed control system Item Throttle body Input voltage TPS Output voltage (*1) with throttle valve fully closed with throttle valve fully open Throttle valve opening angle (*1) with throttle valve fully closed with throttle valve fully open

Unit V

Model F40EHA

F40EA

8

F40A

4.75–5.25

9 V

0.674

V

3.680

Degree

0.1

Degree

75.3

10

A 1-6

SPEC

Specification Item

Oil pressure switch Input voltage Working pressure

Unit V kPa (kgf/ cm2, psi)

Model F40EHA

F40EA

F40A

12.0 29.4–58.8 (0.294–0.588, 4.3–8.5)

(*1) The figures are for reference only.

PTT system Item

Unit

Trim sensor Free position resistance (*1) Setting resistance

Ω Ω

Model F40EHA

F40EA

— —

F40A

238.8–378.8 9.0–11.0

(*1) The figures are for reference only.

Charging system Item Lighting coil Output peak voltage at cranking (unloaded) at 1500 r/min (unloaded) at 3500 r/min (unloaded) Resistance (*1) at 20 °C (68 °F) Fuse Rectifier Regulator Output peak voltage at 1500 r/min (unloaded) at 3500 r/min (unloaded)

Unit

Model F40EHA

F40EA

V V V

14.0 45.0 102.0

Ω A

0.561–0.759 30

V V

13.0 13.0

F40A

(*1) The figures are for reference only.

Starting system Item Starter motor Type Output Cranking time limit Commutator Standard diameter Wear limit Standard undercut Wear limit

1-7

Unit

Model F40EHA

F40EA

kW Second

Sliding gear 0.90 30

mm (in) mm (in) mm (in) mm (in)

29.4 (1.16) 28.8 (1.13) 0.5 (0.02) 0.2 (0.01)

F40A

Electrical technical data / Fuel system technical data Item

Unit

Brushes Standard length Wear limit

Model F40EHA

mm (in) mm (in)

F40EA

F40A

12.3 (0.48) 5.5 (0.22)

0

Model

1

Gauge / sensor Item Water pressure sensor Input voltage Output voltage (*1) at 392.0 kPa (3.92 cm2, 56.8 psi) at 784.0 kPa (7.84 cm2, 113.7 psi) Speed sensor Input voltage Output voltage (*1) at 392.0 kPa (3.92 cm2, 56.8 psi) at 784.0 kPa (7.84 cm2, 113.7 psi)

Unit

kgf/ kgf/

kgf/ kgf/

F40EHA

F40EA

V

4.75–5.25

V

2.5

V

4.5

V

4.75–5.25

V

2.5

V

4.5

F40A

2 3 4 5 6

(*1) The figures are for reference only.

Fuel system technical data Fuel system Item Fuel pressure (*1) Within 3 seconds after engine start switch turned to “ON” at engine idle speed

Unit

7

Model F40EHA

F40EA

F40A

8

kPa (kgf/ cm2, psi)

280.0 (2.80, 40.6)

kPa (kgf/ cm2, psi)

230.0 (2.30, 33.4)

9

kPa (kgf/ cm2, psi)

50.0 (0.50, 7.3)

10

Fuel joint Holding pressure Positive pressure Fuel filter assembly Holding pressure Positive pressure Negative pressure

kPa (kgf/ cm2, psi) kPa (kgf/ cm2, psi)

200.0 (2.00, 29.0) 80.0 (0.80, 11.6)

A 1-8

SPEC

Specification Item

Unit

Model F40EHA

F40EA

F40A

Fuel pump Holding pressure Inlet positive pressure Inlet negative pressure Outlet positive pressure

kPa (kgf/ cm2, psi) kPa (kgf/ cm2, psi) kPa (kgf/ cm2, psi)

50.0 (0.50, 7.3) 30.0 (0.30, 4.4) 50.0 (0.50, 7.3)

Primer pump Holding pressure Positive pressure Vapor separator tank Float height (open) Float height (closed) (*1) Fuel strainer Holding pressure

kPa (kgf/ cm2, psi)

170.0 (1.70, 24.7)

mm (in) mm (in)

42.1 ± 2.0 (1.66 ± 0.08) 30.7 (1.21)

kPa (kgf/ cm2, psi)

200.0 (2.00, 29.0)

(*1) The figures are for reference only.

Power unit technical data Power unit Item Cylinder Minimum compression pressure (*1) Engine oil Oil pressure (*2) at 60 °C (140 °F) with SL 10W-30 engine oil and at 800 r/min at 61 °C (142 °F) with SL 10W-30 engine oil and at 3000 r/min Thermostat Valve opening temperature Fully open temperature Fully open stroke

Unit

Model F40EHA

F40EA

kPa (kgf/ cm2, psi)

840.0 (8.40, 121.8)

kPa (kgf/ cm2, psi)

230.0 (2.30, 33.4)

kPa (kgf/ cm2, psi)

480.0 (4.80, 69.6)

°C (°F) °C (°F) mm (in)

58–62 (136–144) 70 (158) 3.0 (0.12)

F40A

(*1) Measuring conditions: Ambient temperature 20 °C (68 °F), fully open throttle, and the spark plugs removed from all cylinders. The figures are for reference only. (*2) For details of the checking method, see “Checking the oil pressure” (7-1). The figures are for reference only.

1-9

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