51
TAKING CARE OF UNEXPECTED PROBLEMS
Engine Will Not Start
Low Power or Engine Speed Won’t Increase
Blade or Cutting-line Head Won’t Stop
Turning When the Throttle is at Slow Position
Possible Cause Correction
Ignition switch is in the STOP (O) position. Turn the ignition switch ON (I).
Choke is not in the CLOSED position (cold engine). Move the choke to the CLOSED position.
Out of fuel. Add fuel and press the priming bulb to fill the
carburetor.
Bad fuel, trimmer stored without treating or draining
gasoline, refueled with bad gasoline. Drain the fuel tank and carburetor, refuel with
fresh gasoline.
Spark plug is faulty, fouled, or has incorrect gap. Clean, gap, or replace the spark plug.
Fuel filter clogged, carburetor malfunction, ignition
malfunction, valves stuck, etc. Replace or repair faulty components as
needed.
Possible Cause Correction
Air filter is dirty or clogged. Clean or replace the air filter.
Fuel filter is dirty or clogged. Replace the fuel filter.
Throttle cable is out of adjustment, broken, or bent. Adjust the cable or replace it if necessary.
Spark arrester screen clogged. Clean the screen.
Grass is wrapped around the output shaft and/or
cutting attachment. Move the ignition switch to the STOP (O)
position and disconnect the spark plug cap
from the spark plug. Remove grass from the
output shaft and cutting attachment area.
Possible Cause Correction
Fault in the throttle control or cable; throttle cable
out of adjustment or bent. Check the throttle control parts; adjust or
replace the cable if necessary.
Idle speed is too fast. Adjust the idle speed.
Broken or worn clutch springs, or faulty clutch
system. Replace the clutch springs or replace or
repair other clutch system parts.