* Owner's Manual‎ > ‎

J -TAKING CARE OF UNEXPECTED PROBLEMS

Engine Will Not Start
 
 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.
 Gap or replace the spark plug.
 Fuel filter clogged, carburetor
malfunction, ignition
malfunction, valves stuck,
etc.
 Replace or repair faulty
components as needed.
 
Low Power or Engine Speed Won’t Increase
 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.
 
Blade or Cutting Line Head Won’t Stop Turning When the
Throttle is at the Slow Position
 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 screw.
 Broken or worn clutch
springs, or faulty clutch
system.
 Replace the clutch springs or
replace or repair other clutch
system parts.
 
Blade or Cutting Line Head Won’t Turn
 Possible Cause  Correction
 Worn or broken clutch,
broken drive cable, worn or
broken gear case parts.
 Replace or repair faulty
components as needed.
 
Excessive Vibration
 Possible Cause  Correction
 Loose cutting-line head or
blade nut.
 Tighten the cutting-line head or
blade nut securely.
 Cutting-line is not wound
properly or has unequal line
lengths.
 Rewind the cutting-line and cut to
equal lengths.
 Damaged blade.  Replace the blade.
Comments