Ryobi RY254BC, Operator'S Manual

Page: 18 / 48

14 — English
TROUBLESHOOTING
PROBLEM POSSIBLE CAUSE SOLUTION
Engine will not start No spark.
No fuel.
Engine is flooded.
Clean or replace spark plug. Reset spark plug gap.
Refer to
Spark Plug Replacement earlier in this
manual.
Push primer bulb until bulb is full of fuel. If bulb
does not fill, primary fuel delivery system is blocked.
Contact a qualified service dealer. If primer bulb fills,
engine may be flooded, proceed to next item.
Set the choke lever to the FULL CHOKE position.
Squeeze the trigger and pull the starter grip and rope
repeatedly until the engine starts and runs.
NOTE: Depending on the severity of the flooding,
this may require numerous pulls of the rope.
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 Air Filter
Screen earlier in this manual.
Contact a qualified service center.
Clean or replace spark plug. Reset spark plug gap.
Refer to
Spark Plug Replacement earlier in this
manual.
Engine starts, runs, and acceler-
ates but will not idle Idle speed screw on carburetor
needs adjustment. Turn idle speed screw clockwise to increase idle
speed.
See Figure 23.
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 spool retainer.
Remove line from spool and rewind. Refer to the
applicable line replacement section in this manual.
Advance line at full throttle.
Spool retainer hard to turn Screw threads are dirty or
damaged. 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.
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
irreversible engine damage and/or void your warranty.