Troubleshooting - Ryobi RY252CS Manuel D'utilisation

PROBLEM
Engine will not start
Engine does not reach full
speed and emits excessive
smoke
Engine starts, runs, and
accelerates but will not idle
Line will not advance
Spool retainer hard to turn
Grass wraps around drive
shaft housing and string
head
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.

TROUBLESHOOTING

POSSIBLE CAUSE
No spark
No fuel
Engine is flooded
Incorrect lubricant/fuel mixture
Air filter screen is dirty
Spark arrestor screen is dirty
Spark plug fouled
Idle speed screw on carburetor
needs adjustment
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
Screw threads are dirty or damaged
Cutting tall grass at ground level
Operating trimmer at part throttle
13 — English
SOLUTION
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.
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.
Turn idle speed screw clockwise to increase idle
speed. See Figure 17.
Lubricate line with silicone spray.
Install more line. Refer to the applicable line re-
placement 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.
Clean threads and lubricate with grease — if no
improvement, replace the spool retainer.
Cut tall grass from the top down to prevent
wrapping.
Operate trimmer at full throttle