Conditions when testing and adjusting
Conditions can affect specifications when checking, measuring and making certain adjustments. Ser-
vice data in this manual was determined under the following conditions:
• Electrical resistance for components such as ignition coils and sensors was measured at 20 C
(68 F).
• Engine compression was measured at:
• Sea level
• 20 C (68 F)
• All spark plugs removed
• Throttle valve at WOT (depending on model specification)
• Trim/tilt angles shown are when the transom angle is 12 degrees.
Abbreviation
The following abbreviations are used in this service manual.
Abbreviation
ECM
ISC
PTT
TPS
VST
Y-COP
YDIS
Color code
B
Black
Br
Brown
G
Green
Gy
Gray
L
Blue
TIP:
For example, "R/Y" stands for a Red with Yellow tracer stripe wire.
Electronic Control Module
Idle Speed Control
Power Trim and Tilt
Throttle Position Sensor
Vapor Separator Tank
Yamaha Customer Outboard Protection
Yamaha Diagnostic System
Lg
Light green
Or
Orange
P
Pink
Pu
Purple
R
Red
Description
0-8
How to use this manual
Sb
Sky blue
W
White
Y
Yellow