Outboard Motor Mounting; Installing The Outboard Motor - Yamaha F150A Service Manual

Outboard engine
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Outboard motor mounting

Installing the outboard motor

Proper mounting of the outboard motor pro-
vides better performance, maximum reliabil-
ity, and the highest customer satisfaction.
This chapter contains the specifications nec-
essary to mount the outboard motor, and may
vary slightly depending on the applications.
When mounting the outboard motor, make
sure that there is sufficient clearance for the
outboard motor to fully tilt up, and to fully
move to port and starboard. See "External
dimensions" (3-5).
1. For single outboard motor installation,
place the outboard motor on the vertical
centerline of the boat transom. For the
hull without strakes, make a same radius
(R) at both sides of hull, and have
another measurement points.
TIP:
Make sure that distance "a" is equal to dis-
tance "b", and distance "c" is equal to dis-
tance "d".
A
a
R
c
B
a
c
A. Hull without strakes
B. Hull with strakes
C/L: Centerline of the transom
C/L
b
R
d
C/L
b
d
For twin outboard motor installation, place
the outboard motors so that the distance from
the C/L of each outboard motor to the C/L of
the boat transom are equal on both sides.
TIP:
• Make sure that distance "e" is equal to dis-
tance "f".
• For the distance (T1), see "External dimen-
sions" (3-5).
C/L: Centerline of the transom
2. Adjust the position of the outboard motor
so that the height of the anti-cavitation
plate "1" is equal to or slightly above the
bottom of the boat transom.
TIP:
This mounting height information is for refer-
ence only. It is impossible to provide com-
plete instructions for every possible boat and
outboard motor combination.
A
3-7
Outboard motor mounting
C/L
f
e
T1
1

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Fl150aF150bFl150b

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