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Yanmar YSB8 User Manual

Yanmar YSB8
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YSB8,12
OPERATION MANUAL
104264-1E
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Yanmar YSB8 Specifications

General IconGeneral
Engine ModelYSB8
Number of Cylinders1
Cooling SystemWater-cooled
Rated Output5.9 kW (8 hp)
Starting SystemElectric starter
Engine Type4-cycle, vertical, water-cooled diesel

Summary

Pre-Operation Engine Checks

Fuel Oil Requirements

Use refined diesel oil, ensuring it's free from deposits and dirt.

Lubricating Oil Selection

Choose oil by viscosity for ambient temperature; do not mix oil types.

Engine Running-In Procedure

Run new engine carefully for first 50 hours, avoiding strain.

Engine Starting Procedures

Manual Starting Method

Set levers, disengage decompression, and crank the engine.

Electric Starting Method

Set levers, turn battery switch on, and use starter key.

In-Operation Monitoring

Lubricating Oil Circulation Check

Verify oil indicator; stop engine if circulation fails and check oil volume.

Abnormal Sound Detection

Stop engine immediately if unusual noises occur and investigate.

Engine Shutdown Procedure

Fuel Injection Regulator Adjustment

Basic Regulator Adjustment

Adjust connecting screw based on injection sound, then tighten locknut.

Advanced Regulator Adjustment

Follow detailed steps involving screws, levers, and punch marks for precise adjustment.

Scheduled Maintenance Checks

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