Yanmar engines service repair manuals

On this page you can find and can download service owner manuals for Yanmar marine engines/ stern-drive motors/ sail-boat engines and outboard motors.

Title

File Size

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Yanmar 1GM/ 2GM/ 3GM Engine Service Manual [en].pdf

15.1Mb

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Yanmar 1GM/ 2GM/ 3GM Operation Manual [en].pdf

1.4Mb

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Yanmar 2YM15/ 3YM20/ 3YM30 Operation Manual [en].pdf

14.9Mb

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Yanmar 3YM30 Parts List [en].pdf

576.1kb

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Yanmar 3YM30/ 3YM20/ 2YM15 Service Manual [en].pdf

16.8Mb

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Yanmar 4BY, 6BY Service Manual [en].pdf

37.1Mb

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Yanmar 6EY17W Service Manual [en].pdf

11.4Mb

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Yanmar 6EY18LW/ 6EY18ALW Service Manual [en].pdf

28.1Mb

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Yanmar 6LPA-STP2, 6LPA-STZP2 Service Manual [en].pdf

1.3Mb

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Yanmar 6LYA-STP, 6LY2A-STP Operation Manual [en].pdf

7.9Mb

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Yanmar 6N18AL-UV Operation Manual [en].pdf

20.3Mb

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Yanmar JH4 Marine Diesel Operation Manual [en].pdf

17.8Mb

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Yanmar Outboard Motor D27 Service Manual [en].pdf

4.8Mb

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Yanmar Outboard Motor D27/ D36 Operation Manual [en].pdf

1.2Mb

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Yanmar Outboard Motor SD25 Operation Manual [en].pdf

750.6kb

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Yanmar Sail-Drive Engine SD20/ SD50/ SD50-4T Operation Manual [en].pdf

2Mb

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Yanmar Sterndrive Motor ZT350 series Operation Manual [en].pdf

2.6Mb

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Yanmar Sterndrive Motor ZT370 Operation Manual [en].pdf

8Mb

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The modest overall dimensions, as well as all the listed advantages, are what primarily characterizes the diesel boat engines Yanmar. When the Japanese manufacturer launched the D-series engines into production, many shipowners were seriously alarmed. Still, they were offered a much more interesting solution compared to gasoline units.

Yanmar diesel outboard motors service repair manuals PDF
Yanmar diesel outboard motors

Currently available for purchase are three models with a capacity of 27, 36 and 40 hp. Their weight is in the region of one hundred kilograms.

 

Yanmar outboard motors have a specific design of the cooling system and the combustion chamber. Thanks to her, they are able to work at low speed for an extremely long time.

 

As befits diesel engines, all three models of the line have 2 thermostats in the cooling system. If the outboard motor operates in a quiet mode, one of them provides heating of the water (cooling). As soon as the momentum begins to approach the maximum value, the temperature drops. Thus, with any load on the engine, it works in the same temperature mode, and therefore its effectiveness is beyond praise.

As stated above, the mass of the motors is about 100 kg. However, it could be even more if it were not for the designers of the Japanese company. They found an interesting solution, which allowed to reduce the mass. We are talking about the cylinder block, made of solid aluminum ingots.

 

In addition, nozzle blocks are installed on the motors. It includes not only the injectors, but also a small fuel pump. According to its characteristics, it [block] is comparable to those that are equipped with gasoline units. Moreover, high-speed. Thanks to the nozzle block, diesel fuel is dispensed extremely accurately. And since only as much combustible mixture as required is fed into the combustion chamber, the operation of the diesel outboard motor is smooth at any number of revolutions.

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