Yamaha F9.9 - Engine Operation Requirements; Start-in-Gear Protection and Fuel Quality

Specifications and requirements
19
EMU25770
Start-in-gear protection
Yamaha outboard motors or Yamaha-ap-
proved remote control units are equipped with
start-in-gear protection device(s). This feature
permits the engine to be started only when it
is in neutral. Always select neutral before
starting the engine.
EMU39692
Engine oil requirements
Select an oil grade according to the average
temperatures in the area where the outboard
motor will be used.
If oil grades listed under Recommended en-
gine oil grade 1 are not available, select an al-
ternative oil grade listed under
Recommended engine oil grade 2.
Recommended engine oil grade 1
Recommended engine oil grade 2
EMU36360
Fuel requirements
EMU41331
Gasoline
Use a good quality gasoline that meets the
minimum octane requirement. If knocking or
pinging occurs, use a different brand of gaso-
line or premium unleaded fuel. Yamaha rec-
ommends that you use alcohol-free gasoline
(see Gasoline with Ethanol) whenever possi-
ble.
The use of a poor quality gasoline may result
in starting and running problems. If you en-
counter drivability problems, which you sus-
pect could be related to the fuel you are using,
we recommend that you switch to a recog-
nized high quality brand of gasoline, such as
a gasoline that is advertised as Top Tier De-
tergent Gasoline. Failure to comply with these
recommendations may also result in un-
scheduled maintenance, fuel system dam-
age, and internal engine damage.
NOTICE
ECM01981
● Do not use leaded gasoline. Leaded gas-
oline can seriously damage the engine.
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)
ZMU06854
122˚F
50˚C
104
40
86
30
68
SAE API
SE
SF
SG
SH
SJ
SL
20
50
10
32
0
14
-10
-4
-20
10W–30
10W–40
5W–30
Recommended fuel:
Regular unleaded gasoline
Min. pump octane number (PON):
86
ZMU06855
122˚F
50˚C
104
40
86
30
68
SAE API
SH
SJ
SL
20
50
10
32
0
14
-10
-4
-20
15W–40
20W–40
20W–50
U6DR30E0.book Page 19 Friday, November 30, 2012 4:27 PM