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UMK425
Honda UMK425 User Manual
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2
Table of Contents
Contents
3
Safety Instructions
4
Operator Responsibility
5
Fire and Burn Hazard
13
Carbon Monoxide Poisoning Hazard
14
Safety Labels Locations
15
Component Identification U4U
16
Component Identification LNU
16
Component Identification Engine
17
Controls
18
Engine Switch
18
Loop Handle Type
18
U-Shaped Handle Type
18
Choke Lever
19
Starter Grip
19
Throttle Trigger
20
Throttle Trigger Interlock
20
Idle-Up Knob
20
Quick-Release Latch
21
Pre-Operation Checks
22
Check the Engine Oil Level
22
Engine Oil Capacity
22
SAE Viscosity Grades
23
Check the Fuel Level
24
Fuel Tank Capacity
25
Gasolines Containing Alcohol
26
Check the Air Cleaner Elements
27
Check the Throttle Cable Free Play
28
Check the Quick-Release Latch
28
Inspect the Cutting Attachment
29
Nylon-Line Cutting Head Inspection
29
Blade Inspection
30
Inspect the Debris Shield
31
Check All Bolts and Nuts
32
Starting the Engine
33
Idle-Up Function
36
Trimming Operation
37
Grass/Weed Trimmer Holding Position Adjustment
37
Basic Operation
38
Stopping the Engine
40
Maintenance
41
Maintenance Schedule
42
Tool Kit
43
Engine Oil Change
44
Air Cleaner Service
46
Cutting Attachment Replacement
47
Debris Shield Change
49
Spark Plug Service
50
Recommended Spark Plug
50
Throttle Cable Check and Adjustment
52
Engine Cooling Fin Inspection
53
Fuel Tank Strainer Service
54
Fuel Tank Cleaning
55
Storage
56
Troubleshooting
58
When the Engine will Not Start
58
Specifications
59
Model UMK425
59
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Honda UMK425 Specifications
General
Engine Displacement
25 cc
Fuel Type
Unleaded Gasoline
Shaft Type
Straight
Handle Type
Loop
Starter System
Recoil
Fuel Tank Capacity
0.58 liters
Power Output
0.8 kW
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