Honda GX660 Service manual

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How to use this manual


A Few Words About Safety

SERVICE INFORMATION

The service and repair information contained in this manual is intended for use by qualified, professional technicians. Attempting service or repairs without the proper training, tools, and equipment could cause injury to you and/or others. It could also damage this Honda product or create an unsafe condition.

This manual describes the proper methods and procedures for performing service, maintenance, and repairs. Some procedures require the use special tools. Any person who intends to use a replacement part, service procedure or a tool that is not recommended by Honda, must determine the risks to their personal safety and the safe operation of this product.

If you need to replace a part, use Honda Genuine parts with the correct part number or an equivalent part. We strongly recommend that you do not use replacement parts of inferior quality.

For Your Customer’s Safety

Proper service and maintenance are essential to the customer’s safety and the reliability of this product. Any error or oversight while servicing this product can result in faulty operation, damage to the product, or injury to others.

Improper service or repairs can create an unsafe condition that can cause your customer or others to be seriously hurt or killed.

Follow the procedures and precautions in this manual and other service materials carefully.

For Your Safety

Because this manual is intended for the professional service technician, we do not provide warnings about many basic shop safety practices (e.g., Hot parts-wear gloves). If you have not received shop safety training or do not feel confident about your knowledge of safe servicing practice, we recommend that you do not attempt to perform the procedures described in this manual.

Some of the most important general service safety precautions are given below. However, we cannot warn you of every conceivable hazard that can arise in performing service and repair procedures. Only you can decide whether or not you should perform a given task.

Failure to properly follow instructions and precautions can cause you to be seriously hurt or killed.

Follow the procedures and precautions in this manual carefully.

Important Safety Precautions

Make sure you have a clear understanding of all basic shop safety practices and that you are wearing appropriate clothing and using safety equipment. When performing any service task, be especially careful of the following:

• Read all of the instructions before you begin, and make sure you have the tools, the replacement or repair parts, and the skills required to perform the tasks safely and completely.

• Protect your eyes by using proper safety glasses, goggles, or face shields anytime you hammer, drill, grind, or work around pressurized air, pressurized liquids, springs or other stored-energy components. If there is any doubt, put on eye protection.

• Use other protective wear when necessary, for example gloves or safety shoes. Handling hot or sharp parts can cause severe burns or cuts. Before you grab something that looks like it can hurt you, stop and put on gloves.

• Protect yourself and others whenever you have engine-power equipment up in the air. Anytime you lift this product with a hoist, make sure that the hoist hook is securely attached to the product.

Make sure the engine is off before you begin any servicing procedures, unless the instruction tells you to do otherwise. This will help eliminate several potential hazards:

• Carbon monoxide poisoning from engine exhaust. Be sure there is adequate ventilation whenever you run the engine.

• Burns from hot parts. Let the engine and exhaust system cool before working in those areas.

• Injury from moving parts. If the instruction tells you to run the engine, be sure your hands, fingers and clothing are out of the way.

Gasoline vapors and hydrogen gasses from battery are explosive. To reduce the possibility of a fire or explosion, be careful when working around gasoline or batteries.

• Use only a nonflammable solvent, not gasoline, to clean parts.

• Never store gasoline in an open container.

• Keep all cigarettes, sparks, and flames away from the battery and all fuel-related parts.

0-1


CONTENTS

SPECIFICATIONS


MAINTENANCE

TROUBLESHOOTING

COVER

FUEL SYSTEM

GOVERNOR SYSTEM

CHARGING SYSTEM

IGNITION SYSTEM

STARTING SYSTEM

OTHER ELECTRICAL

MUFFLER

LUBRICATION SYSTEM

CYLINDER

CRANKCASE

TECHNICAL FEATURES

WIRING DIAGRAMS

INDEX

13

14

15

16

17

9

10

11

12

7

8

5

6

3

4

1

2



INTRODUCTION

This manual covers the service and repair procedures for Honda GX630/630R/660/660R/690/690R.

All information contained in this manual is based on the latest product information available at the time of printing. We reserve the right to make changes at anytime without notice.

No part of this publication may be reproduced, stored in a retrieval system, or transmitted, in any form, by any means, electronic, mechanical, photocopying, recording, or otherwise, without prior written permission of the publisher. This includes text, figures, and tables.

As you read this manual, you will find information that is preceded by a prevent damage to this Honda product, other property, or the environment.

symbol. The purpose of this message is to help

SAFETY MESSAGES

Your safety, and the safety of others, are very important. To help you make informed decisions, we have provided safety messages and other safety information throughout this manual. Of course, it is not practical or possible to warn you about all the hazards associated with servicing these products. You must use your own good judgement.

You will find important safety information in a variety of forms, including:

• Safety Labels – on the product.

• Safety Messages – preceded by a safety alert symbol and one of three signal words, DANGER, WARNING, or CAUTION.

These signal words mean:

You WILL be KILLED or SERIOUSLY HURT if you don’t follow instructions.

You CAN be KILLED or SERIOUSLY HURT if you don’t follow instructions.

You CAN be HURT if you don’t follow instructions.

• Instructions – how to service these products correctly and safely.

ALL INFORMATION, ILLUSTRATIONS, DIRECTIONS AND SPECIFICATIONS INCLUDED IN THIS PUBLICATION ARE

BASED ON THE LATEST PRODUCT INFORMATION AVAILABLE AT THE TIME OF APPROVAL FOR PRINTING. Honda Motor Co., Ltd. RESERVES THE RIGHT TO MAKE CHANGES AT ANY TIME WITHOUT NOTICE AND WITHOUT INCURRING

ANY OBLIGATION WHATSOEVER. NO PART OF THIS PUBLICATION MAY BE REPRODUCED WITHOUT WRITTEN PER-

MISSION. THIS MANUAL IS WRITTEN FOR PERSONS WHO HAVE ACQUIRED BASIC KNOWLEDGE OF MAINTENANCE

ON Honda products.

© Honda Motor Co., Ltd.

SERVICE PUBLICATION OFFICE

Date of Issue: June 2009

0-3



SERVICE RULES

• Use genuine Honda or Honda-recommended parts and lubricants or their equivalents. Parts that do not meet Honda’s design specifications may damage the unit.

• Use the special tools designed for the product.

• Install new gaskets, O-rings, etc. when reassembling.

• When torquing bolts or nuts, begin with larger-diameter or inner bolts first and tighten to the specified torque diagonally, unless a particular sequence is specified.

• Clean parts in cleaning solvent upon disassembly. Lubricate any sliding surfaces before reassembly.

• After reassembly, check all parts for proper installation and operation.

• Many screws used in this machine are self-tapping. Be aware that cross-threading or overtightening these screws will strip the threads and ruin the hole.

Use only metric tools when servicing this unit. Metric bolts, nuts and screws are not interchangeable with non-metric fasteners. The use of incorrect tools and fasteners will damage the unit.

SYMBOLS

The symbols used throughout this manual show specific service procedures. If supplementary information is required pertaining to these symbols, it would be explained specifically in the text without the use of the symbols.

Replace the part(s) with new one(s) before assembly.

Use the recommend engine oil, unless otherwise specified.

Use molybdenum oil solution (mixture of the engine oil and molybdenum grease in a ratio of 1:1).

Use multi-purpose grease (lithium based multi-purpose grease NLGI #2 or equivalent).

Use water resistant molybdenum disulfide grease (containing more than 3% molybdenum disulfide,

NLGI #2 or equivalent).

Example: UNILITE M No.2 manufactured by KYODO YUSHI, Japan

Apply a locking agent. Use a medium strength locking agent unless otherwise specified.

Apply sealant.

( x ) ( ) page 1-1

Use automatic transmission fluid.

Indicates the diameter, length, and quantity of metric bolts used.

Indicates the reference page.

0-4



ABBREVIATIONS

Throughout this manual, the following abbreviations are used to identify the respective parts or systems

Qty

R.

SAE

SCS

STD

SW

TDC

TP

VTEC

INJ

L.

MAP

MIL

O.D.

OP

PGM-FI

P/N

CYL

DLC

EBT

ECT

ECM

EMT

EOP

EX

F

GND

HO2S

IAC

IAT

I.D.

IG or IGN

IN

Abbrev. term

ACG

API

Approx.

Assy.

ATDC

ATF

ATT

BAT

BDC

BTDC

BARO

CKP

Comp.

CMP

Full term

Alternator

American Petroleum institute

Approximately

Assembly

After Top Dead Center

Automatic Transmission Fluid

Attachment

Battery

Bottom Dead Center

Before Top Dead Center

Barometric Pressure

Crankshaft Position

Complete

Camshaft Position

Cylinder

Data Link Connector

Engine Block Temperature

Engine Coolant Temperature

Engine Control Module

Exhaust Manifold Temperature

Engine Oil Pressure

Exhaust

Front or Forward

Ground

Heated Oxygen sensor

Idle Air Control

Intake Air Temperature

Inside diameter

Ignition

Intake

Injection

Left

Manifold Absolute Pressure

Malfunction Indicator Lamp

Outside Diameter

Optional Part

Programmed-Fuel Injection

Part Number

Quantity

Right

Society of Automotive Engineers

Service Check Signal

Standard

Switch

Top Dead Center

Throttle Position

Variable Valve Timing & Valve Lift Electronic Control

BI

Y

Black

Yellow

BU Blue

G

R

W

Green

Red

White

Br

O

Lb

Brown

Orange

Lg

P

Light blue Gr

Light green

Pink

Gray

0-5


1. SPECIFICATIONS

1

SERIAL NUMBER LOCATION ······················ 1-2

DIMENSIONS AND WEIGHTS

SPECIFICATIONS ·········································· 1-2

ENGINE SPECIFICATIONS ··························· 1-3

PERFORMANCE CURVES ···························· 1-4

DIMENSIONAL DRAWINGS···························1-7

PTO DIMENSIONAL DRAWINGS ··················1-9

ENGINE MOUNT DIMENSIONAL

DRAWING ·····················································1-11

1-1


SPECIFICATIONS

SPECIFICATIONS

SERIAL NUMBER LOCATION

The engine serial number (1) is stamped on the crankcase.

Refer to it when ordering parts or making technical inquiries.

(1)

DIMENSIONS AND WEIGHTS

SPECIFICATIONS

Model

Overall length

GX630

Overall width

Overall height

Dry weight

Operating weight

Maximum angle of inclination

GX630R GX660 GX660R

Q type: 405 mm (15.9 in)

V type: 426 mm (16.8 in)

S type: 396 mm (15.6 in)

T type: 429 mm (16.9 in)

B type: 442 mm (17.4 in)

DEN type: 371 mm (14.6 in)

410 mm (16.1 in)

438 mm (17.2 in)

Q, S types: 44.4 kg (97.9 lbs)

V, T types: 44.6 kg (98.3 lbs)

B type: 45.0 kg (99.2 lbs)

DEN type: 44.3 kg (97.7 lbs)

Q, S types: 46.0 kg (101.4 lbs)

V, T types: 46.2 kg (101.9 lbs)

B type: 46.6 kg (102.7 lbs)

DEN type: 45.9 kg (101.2 lbs)

Forward and backward: 20°

Left and right: 20°

GX690 GX690R

1-2


SPECIFICATIONS

ENGINE SPECIFICATIONS

Model

Description code

Type

Displacement

Bore x stroke

Net power (SAE J1349)*

Maximum net torque (SAE J1349)*

Maximum rpm (at no load)

Compression ratio

Fuel consumption (at continuous rated power)

Ignition system

Ignition timing

Spark advancer type

Spark advancer performance

Spark plug

Lubrication system

Oil capacity

Recommended oil

Cooling system

Starting system

Stopping system

Carburetor

Air cleaner

Governor

Breather system

Fuel used

GX630

GCBBK

GX630R

GCBEK

GX660

GCBCK

GX660R

GCBFK

GX690

GCBDK

4 stroke, overhead valve, 90° V–twin cylinder

688.0 cm 3 (41.97 cu–in)

GX690R

GCBGK

15.5 kW (21.1 PS) /

3,600 min -1 (rpm)

12 kW (16.3 PS) /

3,600 min -1 (rpm)

48.3 N·m

(4.93 kgf·m, 35.6 lbf·ft)

/ 2,500 min -1 (rpm)

78.0 x 72.0 mm (3.07 x 2.83 in)

16.0 kW (21.8 PS) /

3,600 min

12.5 kW (17.0 PS) /

3,600 min

-1

-1

48.3 N·m

(4.93 kgf·m, 35.6 lbf·ft)

/ 2,500 min

(rpm)

(rpm)

-1 (rpm)

16.5 kW (22.4 PS) /

3,600 min -1 (rpm)

13 kW (17.7 PS) /

3,600 min -1 (rpm)

48.3 N·m

(4.93 kgf·m, 35.6 lbf·ft)

/ 2,500 min -1 (rpm)

3,850 ± 150 min-1 (rpm)

9.3 ± 0.2

6.0 Liters (1.59 US gal,

1.32 Imp gal) / h


1.39 Imp gal) / h


1.47 Imp gal) / h

C.D.I.(Capacitor Discharge Ignition) type magneto

B.T.D.C. 9° / 1,000 min-1 (rpm)

Electronic type

B.T.D.C. 9° – 23°

ZFR5F (NGK)

Forced feed

Without oil filter replacement: 1.5 Liters (1.59 US qt, 1.32 Imp qt)

With oil filter replacement: 1.7 Liters (1.80 US qt, 1.50 Imp qt)

SAE 10W-30 API service classification SE or later

Forced air

Starter motor

Ignition primary circuit open

2 barrel horizontal type, butterfly valve

Dual type

Mechanical centrifugal

Reed valve type, PCV (Positive Crankcase Ventilation) type

Unleaded gasoline with a pump octane rating 86 or higher

*: The power rating of the engine indicated in this document is the net power output tested on a production engine for the engine model and measured in accordance with SAE J1349 at 3,600 rpm (net power) and at 2,500 rpm (max net torque). Mass production engines may vary from this value. Actual power output for the engine installed in the final machine will vary depending on numerous factors, including the operating speed of the engine in application, environmental conditions, maintenance, and other variables.

1-3


SPECIFICATIONS

PERFORMANCE CURVES

GX630/GX630R

(N•m)

50

45

40

(KW)

18

NET TORQUE

(lbf•ft) (kgf•m)

35 5.0

4.5

30

4.0

25

(PS)

24

16

22

20

NET POWER

14

12

18

16

14

10

RECOMMENDED OPERATING SPEED RANGE

8

2000 3000

ENGINE SPEED

3600

12

(min

-1

[ ])

1-4


SPECIFICATIONS

GX660/GX660R

(N·m)

50

45

40

(KW)

18

NET TORQUE

(lbf·ft) (kgf·m)

35 5.0

4.5

30

4.0

25

(PS)

24

16

22

20

NET POWER

14

12

18

16

10

14


8

2000 3000

ENGINE SPEED

3600

12

(min

-1

[TRO])

1-5


SPECIFICATIONS

GX690/GX690R

(N•m)

50

45

40

(KW)

18

16

14

12

NET TORQUE

NET POWER

22

20

18

16

(lbf•ft) (kgf•m)

35 5.0

4.5

30

4.0

25

(PS)

24

14

10


8

2000 3000

ENGINE SPEED

3600

12

(min -1 [ ])

1-6


DIMENSIONAL DRAWINGS

67 (2.6)

(EXHAUST

PORT END)

(2.0) 50

SPECIFICATIONS

18°

287.3 (11.31)

(EXHAUST PORT CENTER)

Unit: mm (in)

18°

M8x1.25 DEPTH 18

(2 PLACES)

M8x1.25 DEPTH 18

(2 PLACES)

50

(2.0)

198.5 (7.81)

405 (15.9)

135 (5.3)

207 (8.1)

205(8.1)

245(9.6)

205(8.1)

81 (3.2)

(EXHAUST

PORT END)

1-7


SPECIFICATIONS

HIGH MOUNT MUFFLER TYPE

275.8(10.86)

380(15.0)

68(2.7)

309.5

130.5

102.5

Unit: mm (in)

SIDE MOUNT MUFFLER TYPE

166(6.5)

1-8

238.5(9.39)

280(11.0)

307(12.1)

78(3.1)

209(8.2)


PTO DIMENSIONAL DRAWINGS

MOUNT PART

30°

30°

SPECIFICATIONS

Unit: mm (in)

Q TYPE

45°

P

.D.127

146.05

P

.D.165.1

P

.D.196.9

45°

5/16-24UNF-2B TAP

(4 PLACES)

3/8-16UNF-2B TAP

(4 PLACES)

7/16-14UNF-2B TAP

(4 PLACES)

18 (0.2)

4 (0.2)

18(0.7)

6.3

+0.05

0

0 -0.0010

0 -0.025

50 (2.0)

35 (1.4)

28 (1.1)

5 (0.2)

2 (0.1)

4.5 (0.18)

74 (2.9)

1-9


SPECIFICATIONS

T TYPE

70 (2.8)

49 (1.9)

43.5 (1.71)

5 (0.2)

0 -0.13

6.3

+0.05

0

0.25

+0.002

0

90 (3.5)

4.5 (0.18)

1.2 (0.05)

6 (0.2)

B TYPE

9.53

+0.05

0

50 (2.0)

43.5 (1.71)

5 (0.2)

92 (3.6)

0 -0.0010

0 -0.025

C1.5

111.2 (4.38)

2 (0.1)

4.5 (0.18)

V TYPE

84.3 (3.32)

77.5 (3.05)

(GAUGE LINE)

2 • 1/4 TAPER PER F T.ON DIA.

8.2 (0.32)

Unit: mm (in)

4 (0.2)

25 (1.0)

32 (1.3)

4.5 (0.18)

1-10


S TYPE

7

+0.05

0

41 (1.6)

35 (1.4)

28 (1.1)

5 (0.2)

Φ13 (Φ0.5)

Φ32 (Φ1.3)

50 (2.0)

4.5 (0.18)

1.2(0.05)

3 (0.1)

DEN TYPE

TAPER 1/10

35 (1.4)

28 (1.1)

5 (0.2)

SPECIFICATIONS

Unit: mm (in)

C1

4.5 (0.18)

30.2 (1.19) 7.8 (0.31)

ENGINE MOUNT DIMENSIONAL

DRAWING

90.5 (3.56) 105 (4.1)

1X27(0.4x1.1) (SLOT)

(2 PLACES)

16 (0.6)

(4 PLACES)

1-11


MEMO


2. SERVICE INFORMATION

2

MAINTENANCE STANDARDS ······················ 2-2

TORQUE VALUES ········································· 2-4

LUBRICATION & SEAL POINT ····················· 2-5

TOOLS·····························································2-6

HARNESS ROUTING······································2-8

TUBE ROUTING············································2-13

2-1




MAINTENANCE STANDARDS

Engine

Part

Cylinder

Piston

Piston pin

Piston rings

Connecting rod

Crankshaft

Crankcase

Crankcase cover

Maximum speed (at no load)

Idle speed

Item

Cylinder compression

Sleeve I.D.

Skirt O.D.

Piston-to-cylinder clearance

Piston pin bore I.D.

Pin O.D.

Piston pin-to-piston pin bore clearance

Ring side clearance Top

Ring end gap

Second

Top

Ring width

Second

Oil (side rail)

Top

Second

Small end I.D.

Big end I.D.

Big end oil clearance

Big end side clearance

Crank pin O.D.

Main journal O.D.

Thrust washer thickness

Camshaft bearing I.D.

Main journal I.D.

Crankshaft axial clearance

Camshaft bearing I.D.

Main journal I.D.

Standard

GX630: 3,850 ± 150 min -1 (rpm)

GX630R: 3,850 ± 150 min -1 (rpm)

3,150 ± 150 min -1 (rpm)

(QYD, VEP4, VXF types only)

3,200 ± 150 min -1 (rpm)

(VXD8, VXE1 types only)

GX660: 3,850 ± 150 min -1 (rpm)

GX660R: 3,850 ± 150 min -1 (rpm)

3,200 ± 150 min -1

(VXE1 type only)

(rpm)

GX690: 3,850 ± 150 min -1 (rpm)

GX690R: 3,850 ± 150 min -1 (rpm)

3,200 ± 150 min -1

(VXE type only)

(rpm)

1,400 ± 150 min -1 (rpm)

0.5 – 0.7 MPa

(5.09 – 7.14 kgf/cm 2 , 73 – 102 psi)

/ 500 min -1 (rpm)

78.000 – 78.015 (3.0709 – 3.0715)

77.985 – 77.995 (3.0703 – 3.0707)

0.005 – 0.030 (0.0002 – 0.0012)

18.002 – 18.008 (0.7087 – 0.7090)

17.994 – 18.000 (0.7084 – 0.7087)

0.002 – 0.014 (0.0001 – 0.0006)

0.050 – 0.080 (0.0020 – 0.0031)

0.050 – 0.080 (0.0020 – 0.0031)

0.200 – 0.350 (0.0079 – 0.0138)

0.200 – 0.350 (0.0079 – 0.0138)

0.20 – 0.70 (0.008 – 0.028)

1.140 – 1.155 (0.0449 – 0.0455)

1.140 – 1.155 (0.0449 – 0.0455)

18.006 – 18.018 (0.7089 – 0.7094)

44.988 – 45.012 (1.7712 – 1.7721)

0.005 – 0.039 (0.0002 – 0.0015)

0.2 – 0.4 (0.008 – 0.016)

44.973 – 44.983 (1.7706 – 1.7710)

39.984 – 40.000 (1.5742 – 1.5748)

0.95 – 1.05 (0.037 – 0.041)

17.016 – 17.027 (0.6699 – 0.6704)

40.025 – 40.041 (1.5758 – 1.5764)

0.05 – 0.45 (0.002 – 0.018)

17.016 – 17.027 (0.6699 – 0.6704)

40.025 – 40.041 (1.5758 – 1.5764)

Unit: mm (in)

Service limit

–

–

–

44.920

(1.7685)

39.930

(1.5720)

0.8 (0.03)

17.06

(0.672)

40.06

(1.577)

1.0 (0.04)

17.06

(0.672)

40.06

(1.577)

1.0 (0.04)

1.0 (0.04)

1.120

(0.0441)

1.120

(0.0441)

18.07

(0.711)

45.050

(1.7736)

0.070

(0.0028)

1.000

(0.0394)

78.150

(3.0768)

77.850

(3.0650)

0.10 (0.004)

18.042

(0.7103)

17.95

(0.707)

0.08 (0.003)

0.15 (0.006)

0.15 (0.006)

1.0 (0.04)

2-2


Valves

Part

Camshaft

Valve lifter

Rocker arm

Oil pump

Carburetor

Spark plug

Ignition Coil

Starter motor

Charge coil

Valve clearance

Item

Valve stem O.D.

IN

EX

IN

EX

Valve guide I.D.

Guide-to-stem clearance

IN/EX

IN

EX

Valve seat width

Valve spring free length

Valve spring perpendicularity

Cam height IN

EX

Camshaft O.D.

Valve lifter I.D.

Valve lifter shaft O.D.

Rocker arm I.D.

Rocker arm shaft O.D.

Rocker arm shaft bearing I.D.

Oil pressure

Tip clearance

Outer rotor-to-housing clearance

Outer rotor-to-pump cover clearance

Main jet

Pilot screw opening

Float height

Gap

Air gap

Brush length

Mica depth

Resistance 2.7A

17A

26A


Standard

0.08 ± 0.02

0.10 ± 0.02

5.475 – 5.490 (0.2156 – 0.2161)

5.435 – 5.450 (0.2140 – 0.2146)

5.500 – 5.512 (0.2165 – 0.2170)

0.010 – 0.037 (0.0004 – 0.0015)

0.050 – 0.077 (0.0020 – 0.0030)

1.0 – 1.2 (0.04 – 0.05)

38.3 (1.51)

2° max.

29.506 – 29.706 (1.1617 – 1.1695)

29.410 – 29.610 (1.1579 – 1.1657)

16.982 – 17.000 (0.6686 – 0.6693)

6.010 – 6.040 (0.2366 – 0.2378)

5.970 – 6.000 (0.2350 – 0.2362)

6.000 – 6.018 (0.050 – 0.077)

5.960 – 5.990 (0.2346 – 0.2358)

6.000 – 6.018 (0.050 – 0.077)

Service limit

–

–

5.400

(0.2126)

5.300

(0.2087)

5.560

(0.2189)

0.110

(0.0043)

0.130

(0.0051)

2.1 (0.08)

36.8 (1.45)

–

29.36

(1.156)

29.26

(1.152)

17.100

(0.6732)

6.070

(0.2390)

5.940

(0.2339)

6.043

(0.2379)

5.953

(0.2344)

6.043

(0.2379)

– 2.8 kgf/cm 2 (39.8 psi) /

2,000 min -1 (rpm) and more

0.15 (0.006)

0.150 – 0.210 (0.0059 – 0.0083)

0.04 – 0.09 (0.002 – 0.004)

GX630/630R: #102 (No.1 cylinder)

#105 (No.2 cylinder)

GX660/660R: #112

(No.1 / No.2 cylinder)

GX690/690R: #118

(No.1 / No.2 cylinder)

GX630/630R: 2 turns out

(No.1 cylinder)

1 - 7/8 turns out

(No.2 cylinder)

GX660/660R: 1 - 3/4 turns out

(No.1 cylinder)

1 - 7/8 turns out

(No.2 cylinder)

GX690/690R: 1 - 7/8 turns out

(No.1 cylinder)

1 - 3/4 turns out

(No.2 cylinder)

15.5 (0.61)

0.7 – 0.8 (0.028 – 0.031)

0.2 – 0.6 (0.01 – 0.02)

10 (0.4)

–

1.95 - 2.93 Ω

0.18 - 0.28 Ω

0.17 - 0.25 Ω

0.30 (0.012)

0.30 (0.012)

0.11 (0.004)

–

–

–

–

–

6 (0.2)

0.2 (0.01)

–

–

–

2-3



TORQUE VALUES

ENGINE TORQUE VALUES

Item

Cylinder nut

Oil drain plug bolt

Oil filter cartridge

Connecting rod bolt

Tappet adjusting nut

Governor arm nut

Flywheel nut

Fuel pump cover screw

Fan cover protector screw

Fan cover screw

Fuel pump screw

Oil pressure switch

Sealing bolt

Air cleaner wing nut

Starter motor terminal nut

Breather valve screw

Hour meter screw

Switch box bracket screw

Combination switch nut

Fuel cut solenoid

Screen grid cover bolt

Screen grid cover nut

Screen grid cover stud bolt

STANDARD TORQUE VALUES

Item

Screw

Bolt and nut

Flange bolt and nut

SH (Small head) flange bolt

Tread Dia. (mm)

M10 x 1.25

M20 x 1.5

M20 x 1.5

M7 x 1.0

M5 x 0.5

M6 x 1.0

M20 x 1.5

M5 tapping screw

M4 special screw

M6 x 1.0 special screw

M6 x 1.0

PT1/8

PT1/8

M6 x 1.0

M8 x 1.25

M3 x 0.5

M3 tapping screw

M5 tapping screw

M22 x 1.0

-

M6 x 1.0

M6 x 1.0

M6 x 1.0

4 mm

5 mm

6 mm

4 mm

5 mm

6 mm

8 mm

10 mm

12 mm

5 mm

6 mm

8 mm

10 mm

6 mm

Tread Dia. (mm)

235

4

1.7

4.4

3

9

9

0.8

N·m

37

45

12

22

7.5

11

4.9

8.8

8.5

8.5

12

9

1

0.8

4

Torque values kgf·m

3.8

4.5

1.2

2.2

0.75

1.1

24

0.4

0.17

0.45

0.3

0.9

0.9

0.08

0.9

0.1

0.08

0.4

0.5

0.90

0.85

0.85

1.2

173

3.0

1.3

3.2

2.2

6.6

6.6

0.6

lbf·ft

27

33

9

16

5.5

8

6.6

0.7

0.6

3.0

3.6

6.5

6.3

6.3

9

34

54

5

12

27

39

9

N·m

2

4

9

3

5

10

22

Torque values kgf·m

0.2

0.4

0.9

0.4

0.5

0.5

1.2

2.7

4.0

0.9

1.0

2.2

3.5

5.5

25

40

3.9

9

20

29

7 lbf·ft

1.5

3.1

6.6

2.5

3.8

7

16

2-4


LUBRICATION & SEAL POINT

Location

Crankshaft pin, journal and gear

Crankcase bearing

Crankcase cover bearing

Piston outer surface and piston pin hole

Piston pin outer surface

Piston ring

Cylinder inner surface

Connecting rod big and small end bearing

Connecting rod bolt threads and seating surface

Camshaft cam profile, bearing, decompressor and gear

Valve lifter shaft and slipper

Valve stem seal contact area of seal lip

Valve stem sliding surface and stem end

Valve spring

Push rod end

Rocker arm bearing and slipper

Tappet adjusting screw and nut threads and seating surface

Rocker arm shaft

Crankshaft thrust washer

Flywheel nut threads and seating surface

Oil pump gear outer surface, rotor and shaft

Governor weight holder gear and journal

Governor holder shaft

Governor slider

Governor arm shaft

Cylinder nut and bolt threads and seating surface

Oil seal outer surface

Oil filter cartridge O-ring

Oil seal lip

O-ring

Cylinder

Crankcase cover

Breather cover

Oil pressure switch

Sealing bolt

Engine oil

Material

Multi-purpose grease

Liquid sealant

(Threebond®1207B)

Liquid sealant

(Threebond®1207B, 1141G,

1215)


Remarks

2-5



TOOLS

Float level gauge

07401-0010000

Oil pressure gauge attachment

07406-0030000

Oil pressure gauge set

07506-3000000

Tappet adjusting wrench 3 mm

07708-0030400

Pilot 17 mm

07746-0040400

Driver handle 15 x 135L

07749-0010000

Seat cutter 27.5 mm

07780-0010200

Seat cutter 33 mm

07780-0010800

Flat cutter 30 mm

07780-0012200

Flat cutter 33 mm

07780-0012900

Interior cutter 30 mm

07780-0014000

Interior cutter 26 mm

07780-0014500

Cutter holder 5.5 mm

07981-VA20101

Valve guide reamer 5.510 mm

07984-2000001

Cleaning brush

07998-VA20100

2-6


Oil seal driver attachment 60 mm

07GAD-PG40100

Oil filter wrench 64 mm

07HAA-PJ70100


Clutch center holder

07JMB-MN50301

Pilot screw wrench (D)

07KMA-MS60101

2-7



HARNESS ROUTING

FRONT VIEW

HIGH TENSION CORD

FUEL CUT SOLENOID

ENGINE WIRE HARNESS

No.2 IGNITION COIL

No.1 IGNITION COIL

HIGH

TENSION

CORD CLIP

HIGH

TENSION

CORD

IGNITION COIL

4P CONNECTOR

FUEL CUT SOLENOID

ENGINE WIRE HARNESS

No.1 IGNITION COIL

IGNITION COIL 4P

CONNECTOR

IGNITION COIL

4P CONNECTOR

No.2

IGNITION

COIL

WIRE BAND

Cut the band end so its length is 10 – 15 mm (0.4 – 0.6 in).

No.1 IGNITION COIL

ENGINE WIRE

HARNESS

HIGH TENSION

CORD

2-8

HARNESS BRACKET

CHARGE

COIL

WIRE


FRONT VIEW (AUTO THROTTLE TYPE)

UPPER SHROUD

AUTO THROTTLE SOLENOID

HARNESS

Make sure there is no slack.


WIRE BAND

No.1 IGNITION COIL

AUTO THROTTLE

SOLENOID

HARNESS

ENGINE WIRE

HARNESS

Cut the band end so its length is 10 – 15 mm

(0.4 – 0.6 in).

HIGH TENSION

CORD

AUTO THROTTLE SOLENOID No.1 IGNITION COIL

AUTO THROTTLE

SOLENOID HARNESS

ENGINE WIRE

HARNESS


HARNESS

WIRE HARNESS CLIP

TO AUTO

THROTTLE

SOLENOID

TO

CHARGE

COIL

TO

IGNITION

COIL

TO

OIL LEVEL

SWITCH

2-9



TOP VIEW (AUTO THROTTLE TYPE)

UPPER SHROUD AUTO THROTTLE SOLENOID


HARNESS

Make sure there is no slack.

ENGINE WIRE HARNESS

No.1 IGNITION COIL

WIRE BAND

2-10


SIDE VIEW (REMOTE CONTROL TYPE)

CHARGE COIL CORD


CORD GROMMET

ENGINE WIRE HARNESS

STARTER MOTOR

CABLE STRAP

ENGINE WIRE HARNESS

Pass the engine wire harness over the charge coil cord.

CHARGE COIL

CORD

CABLE STRAP

Be sure the engine wire harness is not in contact with the bolts.

CORD GROMMET

OIL LEVEL SWITCH

STARTER MOTOR

OIL LEVEL SWITCH

2-11



SIDE VIEW (WITH CONTROL BOX TYPE)

WIRE BAND

CHARGE COIL

CORD

CHOKE CABLE

THROTTLE CABLE

ENGINE WIRE HARNESS

REGULATOR/RECTIFIER

(2.7 A)

STARTER MOTOR

COMBINATION

SWITCH

4P CONNECTOR

WIRE

HARNESS

CLIP

HOUR METER

4P CONNECTOR

ENGINE WIRE HARNESS

Pass the engine wire harness over the charge coil cord.

CHARGE COIL CORD

WIRE HARNESS CLIP

TO

STARTER

MOTOR

TO

CHARGE

COIL

TO

IGNITION

COIL

GROUND TERMINAL

OIL LEVEL SWITCH

CORD GROMMET

REGULATOR/RECTIFIER

STARTER MOTOR

2-12

TO

COMBINATION

SWITCH

TO

REGULATOR/

RECTIFIER

TO

OIL LEVEL

SWITCH

Be sure the engine wire harness is not in contact with the bolts.

OIL LEVEL SWITCH


TUBE ROUTING

TOP VIEW

BREATHER TUBE

TUBE CLAMP

D10.0

FUEL FILTER

TUBE CLAMP D10.0


TUBE CLIP C11

FUEL TUBE A

PURGE TUBE

GROMMET

Clamp the fuel tube A to the hock of the fan cover.

FUEL TUBE B

FUEL PUMP

FRONT VIEW

FUEL FILTER

TUBE CLAMP

D10.0

GROMMET

Clamp the fuel tube A to the hock of the fan cover.

TUBE CLAMP D10.0

FUEL TUBE B

PURGE TUBE

FUEL TUBE A

FUEL PUMP

DRAIN TUBE

PULSE TUBE

TUBE CLIP C11

BREATHER TUBE CLIP

2-13



RIGHT SIDE VIEW

FUEL FILTER

FUEL TUBE A

TUBE CLAMP D10.0

FUEL PUMP

DRAIN TUBE

2-14


3. MAINTENANCE

3

MAINTENANCE SCHEDULE························· 3-2

ENGINE OIL LEVEL CHECK ························· 3-3

ENGINE OIL CHANGE··································· 3-4

OIL FILTER REPLACEMENT ························ 3-4

AIR CLEANER CHECK/CLEANING ·············· 3-5

AIR CLEANER REPLACEMENT ··················· 3-6

SPARK PLUG CHECK/ADJUSTMENT ········· 3-6

SPARK PLUG REPLACEMENT ·····················3-7

SPARK ARRESTER CLEANING····················3-7

IDLE SPEED CHECK/ADJUSTMENT ············3-8

VALVE CLEARANCE CHECK/

ADJUSTMENT ················································3-8

COMBUSTION CHAMBER CLEANING ·······3-10

FUEL FILTER REPLACEMENT····················3-10

FUEL TUBE CHECK ·····································3-11

3-1


MAINTENANCE

MAINTENANCE

MAINTENANCE SCHEDULE

REGULAR SERVICE PERIOD (2)

ITEM Perform at every indicated month or operating hour interval, whichever comes first.

∙

Engine oil Check level

Change

∙

∙

Engine oil filter

Air cleaner

Replace

Check

Clean

Replace

∙

Spark plug Check–adjust

Replace

Clean

∙

∙

∙

∙

∙

Spark arrester

(applicable types)

Idle speed

Valve clearance

Combustion chamber

Fuel filter

Fuel tube

Check–adjust

Check–adjust

Clean

Replace

Check

Each use

First month or

20 hrs.

Every

6 months or

100 hrs.

Every 200 hours

(1)

Every year or

300 hrs.

After every 1,000 hours

Every 2 years (Replace if necessary)

∙ : Emission related items

*: Replace inner filter (paper) only.

(1) Service more frequently when used in dusty areas.

(2) For commercial use, log hours of operation to determine proper maintenance intervals.

Every

2 years or

500 hrs.

*

Refer to page

3-8

3-8

3-10

3-10

3-11

3-3

3-4

3-4

3-5

3-5

3-6

3-6

3-7

3-7

3-2


ENGINE OIL LEVEL CHECK

Place the engine on a level surface.

Start the engine and allow it to warm up for 1 to 2 minutes.

Remove the oil level dipstick (1), and wipe it clean.

Insert the oil level dipstick into the oil level pipe (2).

Remove the oil level dipstick and check oil level shown on the tip of the level dipstick.

If the oil level is near or below the lower level mark (3) on the oil level dipstick, remove the oil filler cap (4) from the head cover and fill with recommended oil to the upper level mark (5) of the level dipstick.

(1)

(4)

MAINTENANCE

(2)

(5)

(3)

Oil is a major factor affecting performance and service life. Use 4 - stroke automotive detergent oil.

SAE 10W - 30 or 5W - 30 is recommended for general use. Use a full synthetic 5W - 30 for starting/operating temperatures between 15°C and -5°C. Other viscosities shown in the chart may be used when the average temperature in your area is within the recommended range.

RECOMMENDED OIL:

SAE 10W-30 API service classification SE or later

Tighten the oil filler cap and install the oil level dipstick securely.

SAE VISCOSITY GRADES

AMBIENT TEMPERATURE

3-3


MAINTENANCE

ENGINE OIL CHANGE

Drain the oil in the engine while the engine is warm.

Warm oil drains quickly and completely.

Place the engine on a level surface and place a suitable container under the drain plug bolt (1).

Remove the oil filler cap (2) from the head cover (3) and the drain plug bolt to drain the oil into a suitable container.

Please dispose of used motor oil in a manner that is compatible with the environment. We suggest you take used oil in a sealed container to your local recycling center or service station for reclamation. Do not throw it in the trash, pour it into the ground, or down a drain.

(1)

(4)

(2)

Used engine oil contains substances that have been identified as carcinogenic.

If repeatedly left in contact with the skin for prolonged periods, it may cause skin cancer.

Wash your hands thoroughly with soap and water as soon as possible after contact with used engine oil.

Install a new drain plug washer (4) and tighten the drain plug bolt to the specified torque.

TORQUE: 45 N·m (4.5 kgf·m, 33 lbf·ft)

Fill with recommended oil to the upper level mark of the oil level dipstick (page 3-3).

Tighten the oil filler cap and install the oil level dipstick securely.

OIL FILTER REPLACEMENT

Drain the engine oil.

Remove the oil filter (1) using the special tool (2).

TOOLS:

Oil filter wrench 64 mm (2) 07HAA-PJ70100

Apply a light coat of grease to the O-ring (3) of the new oil filter.

Install the new oil filter and tighten to the specified torque.

TORQUE: 12 N·m (1.2 kgf·m, 9 lbf·ft)

Fill with recommended oil to the upper level mark of the oil level dipstick (page 3-3).

Start the engine and warm up for 1 to 2 minutes.

Check the oil level and if necessary, fill the recommended oil to the upper mark of the oil level dipstick (page 3-3).

(3)

(3)

FRONT MOUNT

TYPE:

SIDE MOUNT

TYPE:

(1)

(2)

(3)

(1)

(2)

3-4

(1)

(1)


AIR CLEANER CHECK/CLEANING

A dirty air filter will restrict air flow to the carburetor, reducing engine performance. If the engine is operated in dusty areas, clean the air cleaner more often than specified in the MAINTENANCE SCHEDULE.

Operating the engine without the air filters or with the filter installed loosely will allow dirt to enter the engine, causing rapid engine wear. Install the air filters securely.

Remove the air cleaner cover (1).

Remove the wing nut (2) and air filter assembly (3)(4).

Separate the air filters into the inner filter (Paper) (3) and the outer filter (Foam) (4).

Carefully check both filters for holes or tears and replace if damaged.

(1)

(4)

(3)

MAINTENANCE

(2)

Clean the outer filter (1) in warm soapy water (2), rinse and allow to dry thoroughly, or clean with a nonflammable solvent (2) and allow to dry thoroughly. Dip the filter in clean engine oil (3) and squeeze out all the excess oil. Excess oil will restrict air flow through the foam element and may cause the engine to smoke at startup.

(1)

(3)

(2)

Squeeze and dry

Squeeze thoroughly

(1)

Tap the inner filter (1) lightly several times on a hard surface to remove excess dirt or blow compressed air lightly (207 kPa (2.11 kgf/cm 2 , 30 psi) or less) through the paper filter from the inside out. Never try to brush the dirt off; brushing will force dirt into the fibers.

Wipe dirt from the inside of the air cleaner case and the air cleaner cover, using a rag.

Check the air cleaner case packing for deterioration or damage. Make sure the air cleaner packing installed securely.

Attach the outer filter on the inner element, and then install the air filter assembly and tighten the wing nut securely.

TORQUE: 0.8 N·m (0.08 kgf·m, 0.6 lbf·ft)

Install the air cleaner cover.

3-5


MAINTENANCE

AIR CLEANER REPLACEMENT

Remove the air cleaner cover (page 3-5).

Remove the wing nut and air cleaner filters (page 3-5).

Wipe dirt from the inside of the air cleaner case and the air cleaner cover, using a rag.

Check the air cleaner case packing for deterioration or damage. Make sure the air cleaner packing installed securely.

Install a new air cleaner filters and tighten the wing nut securely.


Install the air cleaner cover.

SPARK PLUG CHECK/ADJUSTMENT

If the engine has been running, the engine will be very hot.

Allow it to cool before proceeding.

Remove the spark plug cap (1), and then remove the spark plug (2) using a spark plug wrench (3).

(3)

3-6

Visually check the spark plug. Replace the plug if the insulator (1) is cracked or chipped.

Remove carbon or other deposits with wire brush.

Check the sealing washer (2) for damage.

Replace the spark plug if the sealing washer is damaged (page 3-7).

(1)

(2)

Measure the plug gap with a wire-type feeler gauge. If the measurement is out of the specification, adjust by bending the side electrode.

PLUG GAP: 0.7 – 0.8 mm (0.028 – 0.031 in)

Install the spark plug finger-tight to seat the washer, and then tighten 1/8 – 1/4 turn with a spark plug wrench.

A loose spark plug can become very hot and can damage the engine. Overtightening can damage the threads in the cylinder block.

Install the spark plug cap securely.

(1)

0.7 – 0.8 mm

(0.028 – 0.031 in)

(2)


SPARK PLUG REPLACEMENT

If the engine has been running, the engine will be very hot.

Allow it to cool before proceeding.

Remove the spark plug cap, and then remove the spark plug using a spark plug wrench (page 3-6).

Verify the new spark plug gap is correct (page 3-6).

Install a new spark plug finger-tight to seat the washer, and then tighten 1/2 turn with a spark plug wrench.

SPARK PLUG: ZFR5F (NGK)

A loose spark plug can become very hot and can damage the engine. Overtightening can damage the threads in the cylinder block.

Install the spark plug cap securely.

SPARK ARRESTER CLEANING

The muffler becomes very hot during operation and remains hot for a while after stopping the engine.

Be careful not to touch the muffler while it is hot. Allow it to cool before proceeding.

Remove the flange bolts (1) and muffler protector (2)

(side mount type only).

Remove the tapping screw/s (3) and spark arrester (4).

HIGH MOUNT TYPE:

(3)

MAINTENANCE

(4)

SIDE MOUNT TYPE:

(2)

(1)

(4)

(3)

3-7


MAINTENANCE

Clean the carbon deposits from the spark arrester screen (1) with a wire brush.

Check the spark arrester screen for damage. If the screen is damaged, replace the spark arrester.

Reinstall the spark arrester to the muffler.

Install the muffler protector (side mount type only).

IDLE SPEED CHECK/ADJUSTMENT

Start the engine and allow it to warm up to normal operating temperature.

Turn the pan screw (1) of the control to obtain the specified idle speed.

IDLE SPEED: 1,400 ± 150 min -1 (rpm)

(1)

(1)

VALVE CLEARANCE CHECK/

ADJUSTMENT

Remove the four flange bolts (1) and the each valve cover (2).

Remove the fan cover protector or screen grid (page 5-

2).

Disconnect the spark plug caps (3) from the spark plugs.

(2)

(3)

Set the piston of the No.1 cylinder at the top dead center of the cylinder compression stroke (both valves fully closed) by rotating the flywheel (1) clockwise slowly. When the No.1 piston is at the top dead center of the compression stroke, the “T” mark (2) on the cooling fan will align with the right side alignment mark

(3) on the fan cover.

If the exhaust valve is opened, rotate the flywheel and align the “T” mark on the cooling fan with the alignment mark on the fan cover again.

(1)

(2)

(1)

(3)

3-8


Insert a thickness gauge between the valve rocker arm

(1) and valve stem (2) to measure the valve clearance.

VALVE CLEARANCE:

IN: 0.08 ± 0.02 mm

EX: 0.10 ± 0.02 mm

(1)

MAINTENANCE

(2)

Set the piston of the No.2 cylinder at the top dead center of the cylinder compression stroke (both valves fully closed) by rotating the flywheel (1) 270 degrees clockwise slowly. When the No.2 piston is at the top dead center of the compression stroke, the “T” mark (2) on the cooling fan will align with the left side alignment mark (3) on the fan cover.

Insert a thickness gauge between the valve rocker arm and valve stem to measure the valve clearance.


IN: 0.08 ± 0.02 mm

EX: 0.10 ± 0.02 mm

If adjustment is necessary, proceed as follows.

Hold the tappet adjusting screw (1) and loosen the tappet adjusting nut (2).

TOOL:

Tappet adjusting wrench 3 mm (3) 07708-0030400

Turn the tappet adjusting screw to obtain the specified clearance.


IN: 0.08 ± 0.02 mm

EX: 0.10 ± 0.02 mm

Hold the tappet adjusting screw and retighten the tappet adjusting nut to the specified torque.


Recheck the valve clearance, and if necessary, readjust the clearance.

Check the valve cover packing for damage or deterioration and install it on the valve cover.

Attach the cylinder valve cover to the cylinder and tighten the flange bolts securely.

(3)

(2)

(3)

(2)

270°

(1)

(1)

(2)

(1)

To decrease valve clearance: screw in.

To increase valve clearance: screw out.

3-9


MAINTENANCE

COMBUSTION CHAMBER CLEANING

Remove the cylinder (page 14-2).

Prepare a cylinder of a thick paper or equivalent material (1), which diameter is as large as to fit against the inner wall of the cylinder, and insert the paper into the cylinder.

Attach the cleaning brush (special tool) (2) to an electric drill and clean any carbon deposits from the combustion chamber.

TOOL:

Cleaning brush (2) 07998-VA20100

• Do not remove valves from the cylinder while cleaning the combustion chamber.

• Be sure to insert a thick paper into the cylinder to protect the inner wall of the cylinder during clearing of the combustion chamber.

• Do not press the cleaning brush with force against the combustion chamber.

FUEL FILTER REPLACEMENT

Gasoline is highly flammable and explosive.

You can be burned or seriously injured when handling fuel.

• Keep heat, sparks and flame away.

• Handle fuel only outdoors.

• Wipe up spills immediately.

Check the fuel filter (1) for water accumulation or sediment. If necessary replace it.

(2)

(1)

3-10

Install the commercially available tube clamps (1) on the fuel tubes (2) on both sides of the fuel filter (3).

Disconnect the fuel tube from the fuel filter to remove the fuel filter.

Install a new fuel filter with the arrow mark toward the carburetor side.

Check the connecting parts for any sign of fuel leakage.

(2)

(1)

(1)

(3)

(2)


FUEL TUBE CHECK

Gasoline is highly flammable and explosive.

You can be burned or seriously injured when handling fuel.

• Keep heat, sparks and flame away.

• Handle fuel only outdoors.

• Wipe up spills immediately.

Remove the air cleaner case (page 6-3).

Check the fuel tube (1) for deterioration, cracks or signs of leakage. If necessary replace it.

Install the air cleaner case (page 6-3).

(1)

MAINTENANCE

3-11

Honda GX660 Service manual 42 Pages

Honda GX660 Service manual

How to use this manual

A Few Words About Safety

SERVICE INFORMATION

For Your Customer’s Safety

For Your Safety

Important Safety Precautions

CONTENTS

SPECIFICATIONS

SERVICE INFORMATION

MAINTENANCE

TROUBLESHOOTING

COVER

FUEL SYSTEM

GOVERNOR SYSTEM

CHARGING SYSTEM

IGNITION SYSTEM

STARTING SYSTEM

OTHER ELECTRICAL

MUFFLER

LUBRICATION SYSTEM

CYLINDER

CRANKCASE

TECHNICAL FEATURES

WIRING DIAGRAMS

INDEX

How to use this manual

INTRODUCTION

SAFETY MESSAGES

How to use this manual

SERVICE RULES

SYMBOLS

How to use this manual

ABBREVIATIONS

1. SPECIFICATIONS

SPECIFICATIONS

SERIAL NUMBER LOCATION

DIMENSIONS AND WEIGHTS

SPECIFICATIONS

SPECIFICATIONS

ENGINE SPECIFICATIONS

SPECIFICATIONS

PERFORMANCE CURVES

GX630/GX630R

SPECIFICATIONS

GX660/GX660R

SPECIFICATIONS

GX690/GX690R

DIMENSIONAL DRAWINGS

SPECIFICATIONS

SPECIFICATIONS

HIGH MOUNT MUFFLER TYPE

SIDE MOUNT MUFFLER TYPE

PTO DIMENSIONAL DRAWINGS

MOUNT PART

SPECIFICATIONS

Q TYPE

SPECIFICATIONS

T TYPE

B TYPE

V TYPE

S TYPE

DEN TYPE

SPECIFICATIONS

ENGINE MOUNT DIMENSIONAL

DRAWING

2. SERVICE INFORMATION

SERVICE INFORMATION

MAINTENANCE STANDARDS

SERVICE INFORMATION

SERVICE INFORMATION

TORQUE VALUES

ENGINE TORQUE VALUES

STANDARD TORQUE VALUES

LUBRICATION & SEAL POINT

SERVICE INFORMATION

SERVICE INFORMATION

TOOLS

SERVICE INFORMATION