Troubleshooting - Ryobi RCS4240NB Operator's Manual

PROBLEM
Engine will not start.
Engine starts but will not
accelerate properly.
Engine starts, then dies.
Engine starts but will not run
properly at high speed.
Engine does not reach full speed
and/or emits excessive smoke.
Engine starts, runs, and
accelerates but will not idle.
Chain turns at idle.
English

TROUBLESHOOTING

POSSIBLE CAUSE
Spark plug dirty.
Engine is flooded.
Carburettor requires "L"
(Low jet) adjustment.
Carburettor requires "L" (Low Jet)
adjustment.
Carburettor requires "H"
(High jet) adjustment.
Lubricant/fuel mixture incorrect.
Air filter dirty.
Spark arrestor screen dirty.
Carburettor requires "H"
(High jet) adjustment.
Carburettor requires adjustment
to idle speed.
Carburettor requires adjustment
to idle speed.
Air leak in the intake system.
22
SOLUTION
Clean or replace spark plug. Reset spark
plug gap. Refer to Spark Plug Replacement
earlier in this manual.
With the ignition switch OFF, remove spark
plug. Move choke lever to run position
(pushed in completely) and pull starter cord
15 to 20 times. This will clear excess fuel
from engine. Clean and reinstall spark plug.
Set ignition switch to run ( l ) position. Push
and fully release primer bulb 7 times. Pull
starter cord three times with choke lever at
run. If engine does not start, move choke
lever to full and repeat normal starting
procedure. If engine still fails to start, repeat
procedure with a new spark plug.
Contact an authorised service centre for
carburettor adjustment.
Contact an authorised service centre for
carburettor adjustment.
Contact an authorised service centre for
carburettor adjustment.
Use fresh fuel and the correct 2-stroke
lubricant mix ratio.
Clean air filter. Refer to Cleaning the Air
Filter in the Maintenance section of this
manual.
Clean spark arrestor screen. Refer to
Inspecting/Cleaning the Spark Arrestor
Screen in the Maintenance section of
this manual.
Contact an authorized service centre for
carburettor adjustment.
Contact an authorised service centre for
carbrrettor adjustment.
Contact an authorised service centre for
carbrrettor adjustment.
Contact an authorised service centre for a
rebuild kit.