Propeller selection
The performance of a boat and outboard
motor will be critically affected by the size and
type of propeller you choose. Propellers
greatly affect boat speed, acceleration,
engine life, fuel economy, and even boating
and steering capabilities. An incorrect choice
could adversely affect performance and could
also seriously damage the engine.
Use the following information as a guide for
selecting a propeller that meets the operating
conditions of the boat and the outboard
motor.
Propeller size
The size of the propeller is indicated on the
outside of the propeller boss.
a
Propeller diameter (in inches)
b
Propeller pitch (in inches)
c
Propeller type (propeller mark)
Selection
When the engine speed is at the full throttle
operating range (4,500–5,500 r/min), the
ideal propeller for the boat is one that pro-
vides maximum performance in relation to
boat speed and fuel consumption.
Propeller size (in)
Material
9 1/4
×
8 - J
9 1/4
×
9 - J
9 1/4
×
9 3/4 - J
9 1/4
×
10 - J
Aluminum
9 1/4
×
10 1/2 - J
9 1/4
×
11 - J
9 1/4
×
12 - J
6B410030
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a
b c
1-5
GEN
INFO
6D45F11
General information
Identification
Applicable model
This manual covers the following models.
Serial number
The outboard motor serial number is
stamped on a label attached to the port clamp
bracket.
1
Model name
2
Approved model code
3
Transom height
4
Serial number
Applicable models
F15BMH, F15BM
Model name
Approved
Starting
model code
serial No.
F15BMH
S: 1000001–
6D4
L: 1000001–
F15BM
L: 1000001–
6B410010
YAMAHA MOTOR CO., LTD.
MADE IN JAPAN
PAYS D'ORIGINE JAPON
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3
2
4
6B410020
6D45F11-01 03.10.9 20:41 Page 8
