User Manual

23 ENGLISH
TROUBLESHOOTING
Before asking for repairs, conduct your own inspection rst. If you nd a problem that is not explained in the manual,
do not attempt to dismantle the tool. Instead, ask Makita Authorized Service Centers, always using Makita replace-
ment parts for repairs.
State of abnormality Probable cause (malfunction) Remedy
Engine does not start. Failure to operate primer pump. Push 7 to 10 times.
Low pulling speed of starter rope. Pull strongly.
Lack of fuel. Feed fuel.
Clogged fuel lter. Clean the fuel lter or replace with new one.
Bent fuel tube. Straighten the fuel tube.
Deteriorated fuel. Deteriorated fuel makes starting more difcult.
Replace with new one. (Recommended replace-
ment: 1 month)
Excessive suction of fuel. Set throttle lever from medium speed to high speed,
and pull starter handle until engine starts. If engine
will not start still, remove spark plug, make electrode
dry, and reassemble them as they originally are.
Then, start as specied.
Detached plug cap. Attach securely.
Contaminated spark plug. Clean the spark plug.
Abnormal clearance of spark plug. Adjust clearance.
Other abnormality of spark plug. Replace the spark plug.
Abnormal carburetor. Ask our authorized service center to inspect and
repair it.
Cannot pull the starter knob. Ask our authorized service center to inspect and
repair it.
Engine internal parts problem. Ask our authorized service center to inspect and
repair it.
Engine stops soon.
Engine speed does not increase.
Insufcient warm-up. Perform warm-up operation.
Choke lever is set to “CLOSE” although
engine is warmed up.
Set to “OPEN”.
Clogged fuel lter. Clean the fuel lter.
Contaminated or clogged air cleaner. Clean the air lter.
Detached control cable. Attach the control cable securely.
Engine internal parts problem. Ask our authorized service center to inspect and
repair it.
Throttle does not return to idling
speed.
Inproper throttle valve position. Reposition the control cable.
Adjust the throttle valve position by turning the cable
adjusting bolt.
Engine does not stop.
Run engine at idling, and set
choke lever to “CLOSE”.
Detached connector. Attach the connector securely.
Abnormal electric system. Ask our authorized service center to inspect and
repair it.