Counter Rotation Models; Start-In-Gear Protection; Engine Oil Requirements - Yamaha F300A Owner's Manual

load. Generally, select a larger pitch propel-
ler 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.
Yamaha recommends to use a propeller suit-
able for the "Shift Dampener System (SDS)".
For further information, consult your Yamaha
dealer.
To check the propeller, see page 94.
1. Propeller diameter in inches
2. Propeller pitch in inches
3. Type of propeller (propeller mark)
EMU36310

Counter rotation models

Standard outboard motors rotate clockwise.
Counter rotation models rotate counterclock-
wise. Counter rotation models are typically
used in multiple motor setups and are
marked with an "L" on the gear case above
the anti-ventilation plate.
On counter rotation models, be sure to use a
propeller intended for counterclockwise rota-
tion. These propellers are identified with the
letter "L" after the size indication on the pro-
peller. WARNING! Never use a standard
Specifications and requirements
propeller with a counter rotation motor,
or a counter rotation propeller with a
standard motor. Otherwise the boat could
go in the direction opposite of that ex-
pected (for example, reverse instead of
forward), which could lead to an accident.
[EWM01810]
For instructions on propeller removal and in-
stallation, see page 94 and 95.
EMU35140
Yamaha outboard motors or Yamaha-ap-
proved digital electronic control units are
equipped with start-in-gear protection de-
vice(s). This feature permits the engine to be
started only when it is in neutral. Always se-
lect neutral before starting the engine.
EMU35537
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1 2
3
ZMU05937
If the recommended engine oil grades are
not available, select an alternative from the
following chart according to the average tem-
peratures in your area.

Start-in-gear protection

Engine oil requirements

Recommended engine oil:
4-stroke motor oil with a combination of
the following SAE and API oil classifi-
cations
Engine oil type SAE:
10W-30, 10W-40, 20W-40, 5W-30
Engine oil grade API:
SE, SF, SG, SH, SJ, SL
Total engine oil quantity (oil pan capaci-
ty):
7.8 L (8.24 US qt, 6.86 Imp.qt)
Replacement engine oil quantity (at peri-
odic maintenance):
Without oil filter replacement:
6.3 L (6.66 US qt, 5.54 Imp.qt)
With oil filter replacement:
6.5 L (6.87 US qt, 5.72 Imp.qt)
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