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Honda UMK425E1 User Manual

Honda UMK425E1
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11 EN
MAINTENANCE SCHEDULE
(1) Clean more often in dusty environments.
(2) These operations should be performed by an authorized Honda dealer, unless
the owner has the appropriate tools and technical know-how required. Refer to
the Honda workshop manual.
TROUBLESHOOTING
Perform this maintenance
at every indicated month or
operating hour interval,
whichever comes first.
Frequency
Each
time
used
Every 3
months
or 25
hours
Every 6
months
or 50
hours
Every
year or
100
hoursItem Action
Engine cooling
fins
Clean
Condition of
cutting
attachment and
guard
Check
Zone around
transmission
head
Clean
Transmission
head
Grease
Operation of
throttle trigger
Check
Operation of
Stop button
Check
Idle / Clutch Check
Air filter element
Check
Clean (1)
Air filter housing Clean
(1)
Zone around
spark plug
Clean
Spark plug
Check
Clean
Zone around
carburettor
Clean
Cables and
connections
Check
Fuel system Check Every 2 years (replace if necessary) (2)
Fuel filter Check
(2)
Spring and
clutch pads
Check
(2)
Idle speed
Check
(2)
Adjust
(2)
Engine oil
Check
Replace
Replace after 10 service hours and then every
6 months or 50 service hours
Fuel tank Clean
Valve clearance Adjust (2)
Nuts and bolts
Check /
Tighten
Problem Probable cause Page
Engine does not start. 1. No fuel. 5
2. Start/Stop button is in Stop
position.
6
3. Spark plug cap incorrectly
attached or disconnected.
9
4. Faulty spark plug or incorrect gap. 9
5. Engine flooded. Remove spark
plug, dry it with a cloth and
reinstall it.
9
6. Fuel filter is dirty. Clean it.
-
Starting difficult or loss of
power.
1. Dirty air filter. 10
2. Impurities in fuel tank.
-
3. Water in fuel tank and in fuel.
-
4. Fuel tank cap vent and /or
carburettor clogged.
-
5. Engine is hot; choke is closed.
Open choke.
7
Uneven running. 1. Faulty spark plug or incorrect gap. 9
2. Dirty air filter. 10
Engine overheats. 1. Spark plug gap incorrect. 9
2. Dirty air filter. 10
3. Engine cooling fins clogged.
-
4. Oil level too low. 6
5. Starter pulley fouled by grass
cuttings, etc.
Brush cutter vibrates
excessively.
1. Blade incorrectly balanced or
cutting attachment incorrectly
fitted.
3
2. Engine bolts loose.
-

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Honda UMK425E1 Specifications

General IconGeneral
BrandHonda
ModelUMK425E1
CategoryTrimmer
LanguageEnglish

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