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Honda UMK425U User Manual

Honda UMK425U
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Honda UMK425U Specifications

General IconGeneral
Fuel TypeUnleaded gasoline
Shaft TypeStraight
Displacement25 cc
Fuel Tank Capacity0.58 liters
Handle TypeLoop
Engine2-stroke, single cylinder, air-cooled

Summary

Safety Instructions

Controls

Pre-Operation Checks

Check Engine Oil Level

Ensures the engine has sufficient and clean oil before operation.

Check Fuel Level

Verifies the fuel tank has the correct type and amount of unleaded petrol.

Inspect Cutting Attachment

Checks the nylon-line head or cutting blade for damage or looseness.

Blade Inspection

Checks the cutting blade for wear, damage, and nut tightness.

Inspect Debris Shield

Ensures the debris shield is correctly installed and undamaged.

Starting the Engine

Trimming Operation

Holding Position Adjustment

Adjusts harness length for correct trimmer posture and balance.

Basic Operation

Guidance on holding the trimmer, maintaining balance, and operating safely.

Stopping the Engine

Maintenance

Maintenance Schedule

Details regular service intervals for various components.

Engine Oil Change

Procedure for draining and refilling the engine oil.

Cutting Attachment Replacement

Steps for replacing the nylon-line cutting head or cutting blade.

Cutting Blade Replacement

Detailed procedure for replacing the cutting blade.

Spark Plug Service

Procedure for checking, cleaning, gapping, and replacing the spark plug.

Troubleshooting

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