Manuals for Yanmar Diesel Engines, Saildrives and Sterndrives

Yanmar was founded in Osaka, Japan, in 1912 by Magokichi Yamaoka. While at first making gasoline-powdered engines, the company was the first to successfully produce a small diesel engine in the 1930s. The company has now made more than 10 million engines. 

Yanmar manuals in other languages:  under construction

Danish - dansk

Dutch - Nederlands

Finnish - Suomi

French - Français  ici

German - Deutsch

Greek - Ελληνικά

Italian - Italiano

Norwegian - Norsk

Portuguese - Português

Spanish - Español   aquí

Swedish - Svenska

 

Dennison Berwick portrait

Message me via Live Chat if don't find what you are looking for, or have old manuals to share to help other sailors.

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Thanks,

Dennison

3 simple steps to make your diesel system reliable and robust

STEP ONE  - Get the manuals for your equipment

Owner, Workshop and Parts Manuals are important documents that should be part of every vessel's library. They contain the detailed information necessary for safe operation, maintenance and correct servicing.  

The manuals on this page are provided for public information and education and can be downloaded for free.  All copyrights belong to copyright holders stated in the documents.

congratulations - by downloading these free manuals you are taking an important step towards making your engine more reliable and robust.


 

STEP TWO - regular maintenance

Simple, regular maintenance is the easiest, quickest and cheapest way to avoid problems and accelerated engine wear. Most expensive repairs start from a lack of basic maintenance or ignoring small warnings. The work is not difficult - it just needs to be done.

The purpose is so that we can enjoy our boat for all the reasons we bought her. Trust yourself. Do the work regularly and be methodical.

 

Download free checklists here

if you need clear, easy-to-understand help

300+ drawings

Seeing is Understanding

Marine Diesel Basics 1
Maintain, Winterize and Recommission

•  explains all parts of the marine diesel system - fuel,
lubrication, breathing, electrics, stern gland, propeller etc.
•  140+ tasks, 300+ drawings, 222 pages
•  tasks are fully explained with clear drawings and minimal text
•  all tools & supplies needed are illustrated for each task
•  paperback US$15.99 £10.99 €12.99
•  ebook (kindle, kobo, ibooks, google, epub) US$9.99


 

STEP THREE - keep a Maintenance Logbook

Keep a detailed and accurate record:

  1. all the work done on your diesel system - what, when  & by who
  2. inventory of serial numbers, component descriptions
  3. early warning of potential problems
  4. time and details of any changes in performance

Use a notebook or use your iPad, tablet or desktop and record the information in an editable PDF directly as you work.

click to enlarge

Maintenance eLogbook

If you've every struggled to keep a logbook, this editable eLogbook may be exactly the help you need.

- "fillable form" PDF
- clickable checklists
- write, edit  details of all tasks completed
- 40+ drawings to help inspections
- all common measurements with live calculators
- just $7.99 196 pages

"the Perfect Logbook" - verified purchaser

Documents are available for the following engines:

Yanmar Bulletins

Yanmar Diesel Engine Model Names Guide

Engine Model Names Guide

 

1 page
publ. - no date given

< 1 MB file 

Yanmar Diesel Engines Catalog 2016

Product Guide

marine diesel engines

 

28 pages
publ. 2016

 

14 MB file

Yanmar Marine Diesel Engines Identification Guide

Identification Guide

model numbering and designations

 

6 pages
publ. - downloaded June 2018

< 1 MB file

Service and Technical Bulletins

Yanmar Propeller when Sailing Bulletin

Technical Bulletin   "Yanmar Sailboat engine control lever position during sailing under sail with engine stopped"

2 pages
publ. October 2011

 

< 1MB file

Yanmar marine diesel engine Service Bulletins

Service Bulletins

Prevention of Incorrect Warranty Procedure
Bleeding the Fuel System
Coolant Additives
Winterizing Fresh Water Cooled Diesel Engines
Winterizing Raw Water Cooled Diesel Engines
Yanmar Stop Cables
Yanmar Diesel Seminars
Yanmar Distributors
Yanmar Marine Engines On Board Spare Parts Kits

10 pages
publ.  - no date given

< 1 MB file

Yanmar AT-Series Alternator Cooling Bulletin 2018

Service Bulletin from Balmar

AT-Series Alternator Cooling on Late-Model Yanmar Engines

2 pages
publ. February 2018

< 1 MB file

 

Yanmar Diesel Engine 6BY2 220 Operation Manual

Operation Manual
BY Series

4BY
6BY

 

126 pages
publ. March 2006

 

6 MB file

Yanmar 4BY-150 Marine Diesel Engine Service Manual

Service Manual

4BY-150
4BY-180

6BY-220
6BY-260

233 pages
publ. 2007

 

20MB file

Yanmar 4BY2-150 etc. marine diesel engines Operation Manual

Operation Manual

4BY2-150    4BY2-180
6BY2-220    4BY2-260

92 pages
publ. 2008
languages: English, Danish, Dutch, Finnish, French, German, Greek, Italian, Norwegian, Portuguese, Spanish, Swedish

 

4MB file

Yanmar 4BY3-150 Marine Diesel Engine Operation Manual

Operation Manual

4BY3-150        4BY3-150Z
4BY3-180        4BY3-180Z

6BY3-220       6BY3-220Z
6BY3-260       6BY3-260Z

 

96 pages
publ. January 2013

17 MB file

Yanmar 1,2,3 Cylinder Diesel Engine Workshop Manual

Shop Manual

1, 2, 3 cylinder
GM model engines

 

240 pages
publ. - no date given

 

33 MB file

Yanmar 1GM10 diesel engine Datasheet

Datasheet

1GM10

2 pages
publ. July 2017

 

< 1 MB file

cover of Yanmar GM Series Maintenance Guide

Maintenance Guide

GM Series

publication date unknown

245 kB

cover of Yanmar 1GM 2GM Operation Manual

Operation Manual

1GM
2GM
3GMD
3HM

56 pages

1 MB file

cover of Yanmar 1GM 2GM Service Manual

Service Manual

1GM (10L)
2GM (F), (L)
3GM (D), (F), (L)
3HM (F), (L)

53 pages

< 1MB file

Yanmar diesel engine 1GM10 (c) Service

Service Manual

1GM10 (C)
2GM20 (F) (C)
3GM30 (F) (C)
3HM35 (F) (C)

463 pages

publ. 1991

 

35 MB file

Yanmar 2GM20 marine diesel engine Parts Catalog

Parts Catalog

2GM20

69 pages
publ. November 2010

 

2 MB file

Yanmar 3GM30 etc marine diesel engine Parts Book

Parts Book

3GM30       3GM30VE
3GM30B    3GM30C
3GM30F    3GM30FVE

112 pages
publ. - no date given

2 MB file

Yanmar diesel engine JH series Operators manual

Operator's Manual

JH series

3JH3(B)E
3JH3(C)E
4JH3(B)E
4JH3(C)E

47 pages
4MB file

Yanmar Diesel Engine 3JH5E Operation Manual

Operation Manual

3JH5E
4JH5E
4JH4-TE
4JH4-HTE1
4JH4-HTE

168 pages

English + 11 other languages

publ. Aug 2009
2nd ed. Dec 2011

11 MB file

Yanmar 3JH4 Marine Diesel Engine Service Manual

Service Manual

3JH4E           4JH4E
3JH4BE           4JH4FE
3JH4CE           4JH4BE
3JH4ME          4JH4CE
.                          4JH4ME

 

226 pages
publ. - no date given

18 MB file

Yanmar 3JH4E marine diesel engine Installation Manual

Installation Manual

3JH4E

30 pages
publ. June 2006

 

4 MB file

 

Yanmar 3JH4E marine diesel engine Parts Catalog

Parts Catalog

3JH4E

 

63 pages
publ. November 2014

 

2 MB file

Yanmar diesel engine 4CHL-N Operation Manual

Operation Manual

4CHL-N
4CHL-TH
6CHL-N
6CHL-TN
6CHL-HTN

33 pages

publ. April 2009
1.8 MB file

cover of Yanmar 4JH2 Series Parts Catalog

Parts Catalog

4JH2E
4JH2-TE
4JH2-THE
4JH2-DTE
4JH2-UTE (B)

110 pages
5MB file

cover of Yanmar JH4 Operations Manual 2006

Operation Manual

JH4 series

3JH4E
4JH4 AE
4JHL-TE
4JHL-HTE

publ. 2006
18.7 MB file

Yanmar diesel engine 4JH3-DTE Operation manual

Operation Manual

4JH3-TE
4JH3-TCE
4JH3-HTE
4JH3-DTE

65 pages

publ. 1998
5 MB file

cover of Yanmar 4JH3 Service Manual

Service Manual

4JH3 series
4JH3 - TE
4JH3 - HTE
4JH3 - DTE

 

publ. April 1998
2.6 MB file

Yanmar 4JH4-TE-LR Diesel Engine Technical Sheet

Technical Sheet

4JH4-TE Series

 

2 pages
publ. - no date given

< 1 MB file

Yanmar 3JH5E Marine Diesel Engine Service Manual

Service Manual

3JH5E
4JH5E
4JH4-TE
4JH4-HTE

 

380 pages
publ. September 2009

 

30 MB file

Yanmar 4JH5E Marine diesel Engine Service Manual

Service Manual

4JHE
4JH-TE
4JH-HTE
4JH-DTE

 

317 pages
publ. - no date given

47 MB file

Yanmar 4JH4HTE marine diesel engine with KM4A2 Drawing

Drawing

4JH4HTE with KM4A2 Kanzaki transmission

1 page
publ. July 2006

< 1 MB file

Yanmar 4JH5E marine diesel Specifications Sheet

Datasheet

4JH5E Series

 

2 pages
publ. - no date given

 

< 1 MB file

Yanmar 4JH5E marine diesel engine Workshop Manual

Service Manual

4JHE
4JH-TE
4JH-HTE
4JH-DTE

318 pages
publ. - no date given

19 MB file

Yanmar 4JH5E marine diesel engine Parts Catalog

Parts Catalog

4JH5E

 

59 pages
publ. August 2013

 

2 MB file

Yanmar 3JH40 Wrong Gear Sea Water Pump Bulletin

Technical Bulletin
Wrong Part Number for Raw Water Pump

3JH40        3JH5E
4JH45
4JH57       4JH80
4JH110 
4JH5E

4 pages
publ. November 2018

< 1 MB file

 

Yanmar 4JH-CR Gearbox Combinations Technical Bulletin

Technical Bulletin
Gearbox combination

4JH-CR

 

1 page
publ. April 2018

 

< 1 MB file

 

Yanmar JH-CR Incorrect Engine Shutdown Technical Bulletin

Technical Buletin

JH-CR Series
Check engine alarm can be triggered when engine not shutdown correctly

2 pages
publ. August 2017

<1 MB file

Yanmar-6ch-wdte, 6CH-WUTE

Service Manual

6CH-WDTE
6CH-WUTE

 

170 pages

 

3 MB file

Yanmar 6CX530 Marine diesel Engine Operation Manual

Operation Manual

6CX530 Operation Manual

120 pages
publ. September 2009

 

6 MB file

Yanmar 6EY17W marine diesel engine Information Sheet

Information Sheet

6EY17W

 

1 page
publ. - no date given

 

< 1 MB file

 

Yanmar 6EY17W Marine Diesel Engine Operator Manual

Operation Manual

6EY17W

 

180 pages
publ. March 2013

 

6 MB file

Yanmar 6EY18 Marine Diesel Engine Project Guide

Project Guide

6EY18LW
6EY18ALW

240 pages
publ.  November 2011

 

28 MB file

Yanmar L40AE diesel engine Service Manual

Service Manual   L-A Series

L40AE           L48AE
L60AE           L70AE
L75AE            L90AE
L100AE

 

130 pages
publ. - no date given

 

13 MB file

Yanmar L Series diesel engines Brochure & Technical Information

Brochure & Technical Information

L Series

L-N      L-V      L-W

8 pages
publ. - no date given

14 MB file

Yanmar Diesel Engine 6LPA-STP-2 Operation Manual

Operation Manual

6LPA-STP2
6LPA-STZP2

106 pages
publ. January 2012

 

14 MB file

Yanmar 6LPA-STP2 marine diesel engine Service Manual

Service Manual

6LPA-STP2
6LPA-STZP2

10 pages only - part of Section 1
publ. November 2007

 

1 MB file

Yanmar L100 diesel engine Parts Catalog

Parts Manual

L100

 

21 pages
publ. July 2008

 

3 MB file

Yanmar L70AE diesel engine Parts Catalog

Parts Catalog

L40AE        L48AE
L60AE        L70AE
L75AE        L90AE
L100AE

 

126 pages
publ. 1980

12 MB file

 

Yanmar L48V6CF1T1AA marine diesel engine Parts Catalog

Parts Catalog

L48V6CF1T1AA

 

52 pages
publ. March 2005

 

11 MB file

Yanmar 4LHA-HTP diesel engine Operation Manual

Operation Manual

4LHA-HTP - HTZP
4LHA-DTP - DTZP
4LHA-STP - STZP

67 pages
publ. - no date given

 

5 MB file

Yanmar 6LP-DTE Marine Diesel Engine Service Manual

Service Manual

6LP-DTE
6LP-DTZE
6LP-DTZE1

6LPA-DTP
6LPA-DTZP

6LP-STE
6LP-STZE
6LP-STZE1

6LPA-STP
6LPA-STZP

 

246 pages
publ. July 1998

20 MB file

Yanmar 4LV Series marine diesel engines Datasheet

Datasheet

LV Series

 

2 pages
publ. January 2018

 

<1 MB file

Yanmar 4LV Countermeasure Engine Harness Problem Technical Bulletin

Technical Bulletin

LV Series
Cooler bracket is too close to the wiring harness which can break

 

3 pages
publ. July 2018

 

<1 MB file

Yanmar 4LV Series Fuel Pre-Filter Technical Bulletin

Technical Bulletin

LV Series
Pre (primary) fuel filter must be fitted to all common rail diesel engines

 

3 pages
publ. June 2018

 

<1 MB file

Yanmar 4LV diesel engine Specification Change Fuel Filter Technical Bulletin

Technical Bulletin

LV Series
Change in (secondary) fuel filter specification for serial numbers before #0278

 

1 page
publ. July 2018

 

< 1 MB file

Yanmar 4LV230 Turbo Cover Plate Technical Bulletin

Technical Bulletin
Water-cooled turbocharger cooling plates refit

4LV230
4LV250

6 pages
publ. November 2018

< 1 MB file

Yanmar 8LV ECU marine diesel engine ECU Cannot Be Updated Technical Bulletin

Technical Bulletin

8LV Series
ECU cannot be updated

 

1 page
publ. October 2016

<1 MB file

Yanmar 6LY400 Improving Engine Performance Technical Bulletin

Technical Bulletin
Improving engine performance - software update

2LY400

 

1 page
publ. October 2018

 

< 1 MB file

Yanmar 6LY400 diesel engine 2nd Battery Charging Technical Bulletin

Technical Bulletin
no engine start situation with battery charging

6LY400

 

3 pages
publ. August 2018

 

<1 MB file

Yanmar 6LY400 diesel engine Spares Common Rail Technical Bulletin

Technical Bulletin
Spare parts for common rail equipment

6LY400      6LY440
8LV320
8LV350      8LV370

 

1 page
publ. April 2018

<1 MB file

Yanmar 6LY440 SA-D Software Reprogramming Technical Bulletin

Technical Bulletin
SA-D software reprogramming issue

6LY400
6LY440
4LV Series

2 pages
publ. June 2018

<1 MB file

Yanmar 6LY440 diesel engine Trolling Malfunction Technical Bulletin

Technical Bulletin

Yanmar 6LY440 diesel engine Trolling Malfunction

 

10 pages
publ. July 2017

 

3 MB file

Yanmar 6LY2-STE Marine Diesel Engine Operation Manual

Operation Manual

6LY2-STE

 

55 pages
publ. - no date given

 

3 MB file

Yanmar 6LY2-STE Marine Diesel Engine Service Manual

Service Manual

6LY2-STE
6LY2A-STP
6LYA-STP

 

233 pages
publ. June 2001

 

15 MB file

Yanmar 6LY3-STP Marine Diesel Engine Operation Manual

Operation Manual

6LY3-ETP
6LY3-STP
6LY3-UTP

 

90 pages
publ. 2008

 

5 MB file

Service Manual

6LY3-ETP
6LY3-STP
6LY3-UTP

 

397 pages
publ. June 2007

 

21 MB file

 

Yanmar 6LY3-ETP Marine Diesel Engine Service Manual
Yanmar 6LYA-UTE Marine Diesel Engine Operation Manual

Operation Manual

6LYA-UTE
6LYA-STE

48 pages
publ. - no date given

 

2 MB file

Yanmar 6LYA-UTE Marine Diesel Engine Service Manual

Service Manual

6LYA-UTE
6LYA-STE

 

214 pages
publ. - no date given

 

15 MB file

Yanmar L48EE-D diesel engine Parts Catalog

Parts Catalog

L-48EE-        L-48EE-DE
L-48EE-DG      L-48EE-DEG
L-48EE-DP      L-48EE-DEP

 

114 pages
publ. August 2000

 

12 MB file

Yanmar L48N Diesel Engine Operation Manual

Operation Manual

L48N
L70N
L100N

 

104 pages
publ. - no date given

 

7 MB file

Yanmar L48V diesel engine Operation Manual

Operation Manual

L48V
L70V
L100V

 

112 pages
publ. 2005

 

4 MB file

Yanmar L48V diesel engine service manual

Service Manual

L48V
L70V
L100V

 

248 pages
publ. February 2007

 

25 MB file

Yanmar MP Series Diesel Engine Service Manual

Service Manual

MP Series Injection Pumps
(used on TNV direct injection engines)

 

104 pages
publ. 2007

 

6 MB file

 

Yanmar 6N18(A)L-V marine diesel engine Operation Manual

Operation Manual

6N18(A)L-V Series

 

523 pages
publ. March 2006

20 MB file

Yanmar 2QM15 marine diesel engine Operation Manual

Operation Manual

2QM15

81 pages
publ. - no date given

3 MB file

Yanmar 2QM15 marine diesel engine Service Manual

Service Manual

2QM15

 

222 pages
publ. September 1989

 

14 MB file

Yanmar Diesel engine 2QM20H Service Manual

Service Manual

2QM20(H)
3QM30(H)

 

349 pages
publ. - no date given

 

19 MB file

Yanmar 4THE92 Diesel Engine Service Manual

TNE Series

4TNE92-NMH
4THE92-NMHA
4TNE98-NMH

 

280 pages
publ. 2005

 

21 MB file

Yanmar 2YM15 Marine Diesel Engine Operation Manual

Operation Manual

2YM15
3YM20
3YM30

 

56 pages
publ. 2004

 

15 MB file

Yanmar 2YM15 etc. marine diesel engines Operation Manual 2014

Operation Manual

2YM15
3YM15
3YM30
3YM30AE
3YM30E

 

116 pages
publ. February 2014

3 MB file

Yanmar 3YM30 Marine Diesel Engine Service Manual

Service Manual

2YM15
3YM20
3YM30 (+ other models in 3YM series)

231 pages
publ. - 2005

 

16 MB file

cover of Yanmar YSE8 Service Manual

 

Service Manual

YSE 8
YSE 12

157 pages
publ. July 1972

7MB file

Yanmar Saildrives

Yanmar Saildrive Series Brochure

Information Guide

Saildrive Series

 

2 pages
publ. May 2002

 

< 1 MB file

Yanmar Saildrive Corrosion Bulletin 2010

Service Advisory

Saildrive Corrosion

Advisory MSA2010-007

 

4 pages
publ. April 2010

< 1 MB file

Yanmar SD20 Installation and Operation Manual 1997

Installation and Operation

SD 20
SD 31

 

50 pages
publ. September 1997

 

4 MB file

Yanmar Saildrive SD25 Operation Manual

Operation Manual

SD25

44 pages
publ. June 2014

 

< 1 MB file

Yanmar Saildrive SD20 SD50 Operation Manual

Operation Manual

SD20
SD50
SD50-4T

 

78 pages
publ. 2007

 

3 MB file

Yanmar Saildrive SD20 Service Manual

Operation Manual

SD20
SD30
SD31

 

87 pages
publ - no date given

 

20 MB file

Yanmar Saildrive SD20 Operation Manual 2004

Operation Manual

SD20
SD50
SD50-4T

 

33 pages
publ. 2004

 

< 1 MB file

Yanmar Sail Drive SD20 etc. Operation Manual 2009

Operation Manual

SD20
SD 50
SD 50-4T

 

86 pages
publ. 2009

 

2 MB file

Yanmar saildrive SD40 Service Manual

Service Manual

SD40
SD40-4T
SD50
SD50-4T

 

69 pages
publ. March 2005

 

3 MB file

Yanmar Sail Drive SD60 Operation Manual

Operation Manual

SD 60

 

42 pages
publ. April 2013

 

<1 MB file

 

Yanmar SD60 Saildrive Technical Bulletin 2013

Technical Bulletin

SD60
Change to SD60 from SD 40 and SD50

 

6 pages
publ. August 2013

<1 MB file

Yanmar SD60 Saildrive Technical Bulletin 2015

Technical Bulletin

SD 60 Saildrive
Saildrive shift delay

 

3 pages
publ. July 2015

 

<1 MB file

Sterndrives

Yanmar ZT370 Sterndrive Operation Manual

Operation Manual

ZT370

 

58 pages
publ. March 2013

 

1 MB file

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