How to use this manual
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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 degree
s.
Abbreviation
The following abbreviations are used in this service manual.
Color code
For example, “R/Y” stands for a Red with Yellow tracer stripe wire.
Abbreviation Description
ECM Electronic Control Module
ISC Idle Speed Control
PCV Pressure Control Valve
PT Power Tilt
PTT Power Trim and Tilt
TPS Throttle Position Sensor
VST Vapor Separator Tank
YDIS Yamaha Diagnostic System
B Black Lg Light green Sb Sky blue
Br Brown Or Orange W White
G Green P Pink Y Ye l l ow
Gy Gray Pu Purple
L Blue R Red
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