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Yamato 302 User Manual

Yamato 302
30 pages
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302
YAMATO MOTOR CO. LTD.
Ota Japan
November 2012
M O D E L
M A N U A L
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Yamato 302 Specifications

General IconGeneral
BrandYamato
Model302
CategoryEngine
LanguageEnglish

Summary

General Information

Motor Operation

Pre-Operation Precautions

Ensures safe starting by verifying components like fuel, oil, steering, and spark plugs are correctly set.

Starting the Motor

Detailed steps for initiating the motor, including fuel settings, choke usage, and rope pulling.

Troubleshooting: Hull Not Planing

Addresses issues preventing the hull from planing, involving checks of transom, propeller, and motor performance.

Operational Monitoring and Adjustments

Guidance on observing motor performance during use, including timing, throttle, and listening for unusual noises.

Stopping the Motor

Methods for safely shutting down the engine using the throttle lever or kill-switch.

Post-Operation Motor Care

Instructions for cleaning and maintaining the motor after use, including flushing salt water and drying components.

Recovering a Submerged Motor

Procedures for retrieving and drying a motor that has been submerged in water to prevent further damage.

Disassembly, Inspection, and Reassembly

Power Unit Disassembly

Step-by-step guide to dismantling the power unit, covering removal of magneto, carburetor, and cylinder block.

Power Unit Inspection

Procedures for checking power unit components like cylinder walls, crankshaft, and bearings for wear or damage.

Power Unit Reassembly

Instructions for reassembling the power unit, emphasizing correct lubrication, bearing seating, and torque application.

Magneto System

Magneto Disassembly

Guide to taking apart the magneto assembly, involving removal of the starter pulley, key, and flywheel components.

Magneto Reassembly

Steps for reassembling the magneto, including correct timing, lubrication, and tightening of the flywheel nut.

Magneto Specifications

Technical details for the magneto, including ignition timing settings and spark plug gap requirements.

Carburetor

Carburetor Disassembly

Procedure for dismantling the carburetor, covering the removal of the float cover, nut, banjo, and float assembly.

Carburetor Inspection

Checks for the carburetor's float needle, its contact point, and all internal passageways and jets for obstructions.

Carburetor Reassembly

Instructions for reassembling the carburetor, including throttle butterfly check and float level adjustment.

Gear Case Maintenance

Gear Case Disassembly

Steps for taking apart the gear case, including removal of the tail cap, propeller shaft, and internal gears.

Gear Case Inspection

Methods for inspecting the gear case, checking oil for water, gear wear, and bearing condition.

Gear Case Reassembly

Guidance on reassembling the gear case, including bearing installation, shim adjustment, and filling with gear oil.

Troubleshooting Guide

Motor Cross-Sectional View

Engine Performance Curves

Model 302 Specifications

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