Yamaha 150AET User Manual

E
HOW TO USE THIS MANUAL
MANUAL FORMAT
All of the procedures in this manual are organized in a sequential, step-by-step format. The
information has been compiled to provide the mechanic with an easy to read, handy refer-
ence that contains comprehensive explanations of all disassembly, repair, assembly, and
inspection operations.
For instance, the condition of a faulty component will precede an arrow symbol and the
course of action required will follow the symbol.
• Bearings
Pitting/scratches → Replace.
To assist you in finding your way through this manual, the section title and major heading is
given at the top of every page.
MODEL INDICATION
Multiple models are mentioned in this manual and their model indications are noted as fol-
lows.
ILLUSTRATIONS
The illustrations within this service manual represent all of the designated models.
CROSS REFERENCES
The cross references have been kept to a minimum. Cross references will direct you to the
appropriate section or chapter.
Model name 150AET L150AET 150FETO L150FETO 150GETO
USA and
Canada name
C150TR — — S150TR — L150TR P150TR
Indication 150AET L150AET 150FETO S150FETO L150FETO LS150FETO 150GETO
Model name D150HETO 175AET 175DETO 175FETO 200AET L200AET
USA and
Canada name
D150TR — — S175TR P175TR — —
Indication D150HETO 175AET 175DETO S175DETO 175FETO 200AET L200AET
Model name 200FETO L200FETO 200GETO 225DET 225DETO
USA and
Canada name
200TR S200TR — L200TR P200TR — —
Indication 200FETO S200FETO L200FETO LS200FETO 200GETO 225DET 225DETO

Yamaha 150AET Specifications

General

Brand	Yamaha
Model	150AET
Category	Outboard Motor
Language	English

Summary

How to Use This Manual

Manual Format

Details how procedures are organized in a sequential, step-by-step format.

Model Indication

Explains how multiple model indications are noted in the manual.

Illustrations

States that illustrations represent all designated models.

Cross References

Explains that cross references are kept to a minimum.

Identification and Serial Numbers

Serial Number Location

Describes the location of the outboard motor's serial number on a label.

Starting Serial Numbers

Lists the starting serial number blocks for various models.

Special Tools for Service

Measuring Tools

Lists and describes various measuring tools with their part numbers.

Flywheel Magnet Assembly

Removing and Installing Flywheel Magnet Assembly

Provides instructions for removing and installing the flywheel magnet assembly.

Cylinder Body Assembly Procedures

Installing the Crankshaft Assembly

Details the steps for installing the crankshaft assembly into the cylinder body.

Installing Piston and Connecting Rod Assemblies

Guides the installation of piston and connecting rod assemblies with notes.

Propeller Shaft Housing Assembly

Inspecting the Dog Clutch

Describes inspection of the dog clutch for damage or wear.

Inspecting the Propeller Shaft

Describes inspection of the propeller shaft for damage or wear.

Assembling the Propeller Shaft Housing

Provides steps for installing the needle bearing and oil seal.

Inner Propeller Shaft Assembly

Disassembling and Assembling Inner Propeller Shaft

Details the process of disassembling and assembling the inner propeller shaft.

Shimming for Forward Gear

Selecting Forward Gear Shims

Explains how to select shims to achieve a specified value for forward gear.

Backlash Measurement (Dual Propeller Models)

Measuring Front Gear Backlash

Details the procedure for measuring front gear backlash.