Instruction manual

18
WARNING: When draining the fuel, be sure to stop the engine and confirm that the engine cools
down.
The engine is still hot just after stopping the engine. Wait until it cools down,
otherwise it may cause burns or fire.
When the machine is kept out of operation for a long time, perform the
followings:
Drain up fuel from the fuel tank and carburetor according to the following –
procedure:
1) Remove the fuel tank cap, and drain fuel completely. If there is any foreign
matter remaining in the fuel tank, remove it completely.
2) Pull out the fuel filter from the refill port using a wire.
3) Push the primer pump until fuel is drained from there, and drain fuel
coming into the fuel tank.
4) Reset the filter to the fuel tank, and securely tighten the fuel tank cap.
5) Then, continue to operate the engine until it stops.
Remove the cutting tool. –
Remove the spark plug, and drip several drops of engine oil through the –
spark plug hole.
Gently pull the starter handle so that engine oil will spread over the engine, –
and attach the spark plug.
In general, store the machine in horizontal position, or if it is not possible, –
place the machine as the engine comes below the cutting tool. Otherwise
engine oil may leak from inside. Pay full attention how to store the machine to
prevent the machine from falling. Otherwise it may result in personal injury.
Keep the drained fuel in a special container in a well-ventilated shade. –
Drain fuel
Humidity
STORAGE
Attention after long-time storage
Before startup after long-time storage, be sure to replace engine oil (refer to “REPLACEMENT OF ENGINE OIL”). Oil will deteriorate –
while the machine is kept out of operation.
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 STOP-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, have it cleaned
Engine starts but dies Fuel supply Tank filled Incorrect idling adjustment, carburetor contaminated
Fuel tank vent defective, fuel supply line interrupted,
cable or STOP-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