Engine Mounting Dimensions (Transom Only) - Yamaha T8 Rigging Manual

Outboard Rigging Guide - 2001
ENGINE MOUNTING DIMENSIONS
(TRANSOM ONLY)
Proper mounting of the outboard will mean better
performance, maximum reliability, and maximum
customer satisfaction. This chapter contains the
specifications necessary for motor mounting.
For correct mounting, the cavitation plate should
be equal to the bottom of the transom, or 25mm+
(1.0 inch). If higher mounting is used for perfor-
mance applications, it is recommended that a
water pressure gauge be installed so pressure can
be monitored.
When mounting, also make sure the motor has the
clearance to provide full movement, from both
port to starboard, as well as during trim/tilt func-
tions.
NOTE: For bracket application -
Refer to bracket manufacturer for installation
specifications.
Transom Dimensions
A = Steering Rotation (each way, from cen–
terline)
B = Maximum tilt angle (including 12° tran–
som angle)
C = Protrusion into boat at maximum tilt
D = Cavitation plate distance from top of
transom
E = Steering clearance (each way, from cen–
terline)
F = Powerhead clearance at rear of motor
(each way, from centerline)
G = Transom thickness (minimum - maxi
mum)
H = Transom bracket height
I = Chart
J = Maximum engine depth from top of
transom (0° trim)
K = Powerhead height
L = Maximum height at full tilt (powerhead)
M = Protrusion into boat (tiller handle mod–
els)
N = Maximum rearward protrusion of power
head from transom
0 = Protrusion into boat (remote models)
P = Maximum rearward protrusion of lower
unit from transom (@ level trim)
Q = Distance, propeller shaft from cavitation
plate
R = Minimum twin-engine center-to-center
distance
J+K = Overall height
M+N= Overall depth (tiller models)
N+O = Overall depth (remote models)
Bolt Pattern: Bolt patterns are on the following
pages.
2-1
Engine Mounting Dimensions