Page 14 — English
PROBLEM
POSSIBLE CAUSE
SOLUTION
Engine does not reach full
speed and emits excessive
smoke
Incorrect lubricant/fuel mixture
Air filter screen is dirty
Spark arrestor screen is dirty
Spark plug fouled
Use fresh fuel and the correct 2-cycle lubricant mix.
(50:1).
Clean air filter screen. Refer to
Cleaning the Air Filter
earlier in this manual.
Contact a qualified service dealer.
Clean or replace spark plug. Reset spark plug gap.
Refer to
Spark Plug Replacement
earlier in this
manual.
Engine starts, runs, and
accelerates but will not idle
Idle speed screw on carburetor
needs adjustment
Turn idle speed screw clockwise to increase idle
speed.
See Figure 16.
Line will not advance
Line is welded to itself
Not enough line on spool
Line is worn too short
Line is tangled on spool
Engine speed is too slow
Lubricate line with silicone spray.
Install more line. Refer to the applicable line replace-
ment section in this manual.
Pull lines while alternately pressing down on and
releasing bump knob.
Remove line from spool and rewind. Refer to the appli-
cable line replacement section in this manual.
Advance line at full throttle.
Spool retainer hard to turn
Screw threads are dirty or dam-
aged.
Clean threads and lubricate with grease - if no
improvement, replace the spool retainer.
Grass wraps around drive
shaft housing and string head
Cutting tall grass at ground level
Operating trimmer at part throttle
Cut tall grass from the top down to prevent wrapping.
Operate trimmer at full throttle
Engine starts and runs but
string head does not turn
Shafts are incorrectly assembled. Reassemble shafts. Refer to
Joining the Power
Head to the Trimmer or Edger Attachment
in the
Assembly
section of this manual.
If problem persists after trying the above solutions, contact customer service or a qualified service center for assistance.
NOTICE:
As the equipment owner, you are responsible for the performance of the required maintenance listed in the
Maintenance
section. It is recommended that you retain all receipts covering maintenance on your equipment. Neglecting or failing to
perform the required maintenance may increase emissions, decrease fuel efficiency, degrade performance, cause irrevers-
ible engine damage and/or void your warranty.
TROUBLESHOOTING
