Ryobi RY34425 Manuel D'utilisation page 19

IF THESE SOLUTIONS DO NOT SOLVE THE PROBLEM CONTACT YOUR AUTHORIZED SERVICE DEALER.
PROBLEM
Engine will not start
Engine does not reach full
speed and emits excessive
smoke
Engine starts, runs, and accel-
erates but will not idle
Engine emits too much smoke Too much oil in crankcase.
Engine rope cannot be pulled
Line will not advance
TROUBLESHOOTING
POSSIBLE CAUSE
No spark.
No fuel.
Engine is flooded.
Air filter screen is dirty.
Spark arrestor screen is dirty.
Spark plug fouled.
Idle speed screw on carburetor
needs adjustment.
Oil has entered the combustion
chamber.
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.
15 — 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. Con-
tact a 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 rope repeatedly until
the engine starts and runs.
NOTE: Depending on the severity of the flooding, this
may require numerous pulls of the rope.
Clean air filter screen. Refer to Cleaning Air Filter
Screen earlier in this manual.
Contact a servicing 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 20.
Drain lubricant and refill with correct amount of
20W50 engine lubricant. See Adding/Checking
Engine Lubricant in the Operation section of this
manual.
This is usually caused by storing the unit for an
extended time with the engine in an upside-down
position. Remove and clean the spark plug. Drain
the oil out of the spark plug hole, then reinstall the
spark plug.
Check engine lubricant and add if necessary prior to
starting. Refer to Adding/Checking Engine Lubri-
cant earlier in this manual.
Replace line. Refer to the applicable line replacement
section in this manual.
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.