Start-In-Gear Protection; Engine Oil Requirements - Yamaha F8 Operator's Manual

Specifications and requirements
Your outboard motor came with a Yamaha
propeller selected to perform well over a
range of applications, but there may be uses
where a different propeller would be more
appropriate.
Your Yamaha dealer can help you select the
right propeller for your boating needs. Select
a propeller that will allow the engine to reach
the middle or upper half of the operating
range at full throttle with the maximum boat-
load. Generally, select a larger pitch propeller
for a smaller operating load and a smaller
pitch propeller for a heavier load. If you carry
loads that vary widely, select the propeller
that lets the engine run in the proper range for
your maximum load but remember that you
may need to reduce your throttle setting to
stay within the recommended engine speed
range when carrying lighter loads.
To check the propeller, see page 66.
x
-
1 2 3
1. Propeller diameter in inches
2. Propeller pitch in inches
3. Type of propeller (propeller mark)
EMU39192

Start-in-gear protection

Yamaha outboard motors are equipped with
start-in-gear protection device. This feature
permits the engine to be started only when it
is in neutral. Always select neutral before
starting the engine.
16
EMU39693

Engine oil requirements

Select an oil grade according to the average
temperatures in the area where the outboard
motor will be used.
Recommended engine oil:
YAMALUBE 4M FC-W or 4-stroke
outboard motor oil
Recommended engine oil grade 1:
SAE 10W-30/10W-40/5W-30
API SE/SF/SG/SH/SJ/SL
Recommended engine oil grade 2:
SAE 15W-40/20W-40/20W-50
API SH/SJ/SL
Engine oil quantity:
0.8 L (0.85 US qt, 0.70 Imp.qt)
If oil grades listed under Recommended en-
gine oil grade 1 are not available, select an al-
ternative
Recommended engine oil grade 2.
Recommended engine oil grade 1
-4
-20
ZMU04606
Recommended engine oil grade 2
-4
-20
oil grade
SAE
14 32 50 68
-10 0 10 20
10W–30
10W–40
5W–30
SAE
14 32 50 68
-10 0 10 20
15W–40
20W–40
20W–50
listed under
API
86 104 122˚F
30 40 50˚C
SE
SF
SG
SH
SJ
SL
ZMU06854
API
86 104 122˚F
30 40 50˚C
SH
SJ
SL
ZMU06855