Yamaha F25D - Fuel and Oil Specifications; Propeller and Start-in-Gear Protection

Specifications and requirements
13
peller have a direct impact on acceleration,
top speed, fuel economy, and even engine
life. Yamaha designs and manufactures pro-
pellers for every Yamaha outboard motor
and every application.
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 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.
To check the propeller, see page 72.
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.
EMU37475
Engine oil requirements
If the recommended engine oil grades are
not available, select an alternative from the
1. Propeller diameter in inches
2. Propeller pitch in inches
3. Type of propeller (propeller mark)
ZMU04605
-
x
123
1. Propeller diameter in inches
2. Propeller pitch in inches
3. Type of propeller (propeller mark)
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 or 10W-40
Engine oil grade API:
SE, SF, SG, SH, SJ, SL
Total engine oil quantity (oil pan capaci-
ty):
Without oil filter replacement:
1.4 L (1.48 US qt, 1.23 Imp.qt)
With oil filter replacement:
1.6 L (1.69 US qt, 1.41 Imp.qt)
ZMU04606
-
x
123
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