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– When the machine is in storage for a long time, drain fuel from the fuel tank
and carburetor, as follows: Drain all fuel from the fuel tank. Dispose of properly
and in accordance with all local laws.
– Remove the spark plug and a few drops of oil into the spark plug hole. Then,
pull the starter gently, so that oil covers the engine inside and tighten the spark
plug.
– Clear dirt or dust from the cutter blade and outside of engine, wipe them with a
oil-immersed cloth and keep the machine in a place as dry as possible.
Fault location
Storage
Fault System Observation Cause
Engine not starting or with
difficulty
Ignition system Ignition spark O.K. Fault in fuel supply or compression system, mechanical
defect
No ignition spark I-O switch operated, wiring fault or short circuit, spark
plug or connector defective, ignition module faulty
Fuel supply Fuel tank filled Incorrect choke position, carburetor defective, fuel
supply line bent or blocked, fuel dirty.
Compression No compression when
pulled over
Cylinder bottom gasket defective, crankshaft seals
damaged, cylinder or piston rings defective or improper
sealing of spark plug
Mechanical fault Starter not engaging Broken starter spring, broken parts inside of the engine
Warm start problems Tank filled ignition spark
existing
Carburetor contaminated, must be cleaned
Engine starts but dies
immediately
Fuel supply Tank filled Incorrect idling adjustment, carburetor contaminated
Fuel tank vent defective, fuel supply line interrupted,
cable or I-O switch faulty
Insufficient performance Several systems
may simultaneously
be affected
Engine idling poor Air filter contaminated, carburetor contaminated, muffler
clogged, exhaust duct in the cylinder clogged
Drain fuel
Humidity