Yanmar marine engine 6LPA-STP2, 6LPA-STZP2. Manual - part 6

 

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Yanmar marine engine 6LPA-STP2, 6LPA-STZP2. Manual - part 6

 

 

PRODUCT OVERVIEW

6LPA Series Operation Manual

23

12/05

Reverse

Move the handle from NEUTRAL to REV 
(reverse). This engages the clutch in 
reverse and simultaneously increases the 
engine speed. Pushing the handle further 
in the same direction increases engine 
speed to full speed.

Free Throttle Operation

When the boat is stopped (clutch is in 
NEUTRAL) the idling speed of the engine 
can be increased in the following manner:

1. Ensure the handle is in NEUTRAL.
2. Disengage the clutch:

 Figure 10

MT-3

Figure 11           

1 – Neutral
2 – Low  Speed
3 – High Speed
4 – Remote Control (Throttle) 

Handle

 Figure 11

MV

Figure 12           

1 – High Speed
2 – Low  Speed
3 – Neutral
4 – Free Throttle Button

3. • MT-3: Pull the throttle handle 

(Figure 11, (4))

 all the way out.

• MV: Pull out the free throttle button 

(Figure 12, (4))

, located next to the 

handle. 

When the handle or button is pulled out, 
move the handle to either FORWARD or 
REVERSE to increase the idling speed.

Returning to Normal Operation

• MT-3: Move the throttle handle to 

NEUTRAL (Figure 11, (1)). The lever 
will automatically return to the normal 
position.

• MV: Move throttle handle to NEUTRAL 

(Figure 12, (3))

. Push the free throttle 

button in.

(4)

(1)

(2)

(3)

0004888

(1)

(2)

(3)

(4)

0004889

PRODUCT OVERVIEW

24

6LPA Series Operation Manual

Page Intentionally Left Blank

6LPA Series Operation Manual

25

 

BEFORE YOU OPERATE

INTRODUCTION

This section of the Operation Manual 
describes the diesel fuel, engine oil and 
engine coolant specifications and how to 
replenish them.

SAFETY PRECAUTIONS

Before performing any operations within 
this section, review the Safety section on 
page 3.

BEFORE YOU OPERATE

26

6LPA Series Operation Manual

DIESEL FUEL

Diesel Fuel Specifications

WARNING

Fire and Explosion Hazard. 
Diesel fuel is flammable and explosive 
under certain conditions.

Only use diesel fuels recommended by 
Yanmar for the best engine performance, 
to prevent engine damage. Only use clean 
diesel fuel.

Diesel fuel should comply with the 
following specifications. The table lists 
several worldwide specifications for diesel 
fuels.

Biodiesel Fuels

Yanmar approves the use of biodiesel fuels 
that do not exceed a blend of 7% 
non-mineral oil based fuel with 93% 
standard diesel fuel. Such biodiesel fuels 
are known in the marketplace as B7 
biodiesel fuels. B7 biodiesel fuel can 
reduce particulate matter and the emission 
of “greenhouse” gases compared to 
standard diesel fuel.

If the B7 biodiesel fuel used does not meet 
the approved specifications, it will cause 
abnormal wear of injectors, reduce the life 
of the engine and it may affect the warranty 
coverage of your engine.

B7 diesel fuels must meet certain 
specifications.

The biodiesel fuels must meet the 
minimum specifications for the country in 
which they are used:

• In Europe, biodiesel fuels must comply 

with the European Standard 
EN590-2009, EN14214.

• In the United States, biodiesel fuels must 

comply with the American Standard 
ASTM D-6751, D7467.

Biodiesel should be purchased only from 
recognized and authorized diesel fuel 
suppliers.

Precautions and concerns regarding 
the use of biofuels:
• Biodiesel fuels have a higher content of 

methyl-esters, which may deteriorate 
certain metal, rubber and plastic 
components of the fuel system. The 
customer and / or boat builder are 
responsible to verify the usage of 
biodiesel compatible components on the 
vessel fuel supply and return systems.

• Free water in biodiesel may result in 

plugging of fuel filters and increased 
bacterial growth.

• High viscosity at low temperatures may 

result in fuel delivery problems, injection 
pump seizures and poor injection nozzle 
spray atomization.

• Biodiesel may have adverse effects on 

some elastomers (seal materials) and 
may result in fuel leakage and dilution of 
the engine lubricating oil.

DIESEL FUEL 

SPECIFICATION

LOCATION

No. 2-D, No. 1-D, ASTM 
D6751, D7467,

USA

EN590-2009, EN14214

European Union

ISO 8217 DMX

International

BS 2869-A1 or A2

United Kingdom

JIS K2204 Grade No. 2

Japan

 

 

 

 

 

 

 

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