Ryobi RY10518 - Manual (Page 38)

Page 38 — English
Problem Possible Cause Solution
Engine will not
start. [Make sure
ignition switch is in
the
RUN ( l ) posi-
tion.]
No spark.
Engine is flooded.
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 igni-
tion switch to
RUN ( l ) position. Push and fully release
primer bulb 7 times. Pull starter three times with choke
lever at
RUN. If engine does not start, move choke lever
to FULL CHOKE and repeat normal starting procedure.
If engine still fails to start, repeat procedure with a new
spark plug.
Engine starts but
will not accelerate
properly. Carburetor requires
“L” (Low Jet)
adjustment.
Contact an authorized service center for carburetor
adjustment.
Engine starts, then
dies. Carburetor requires
“L” (Low Jet)
adjustment.
Contact an authorized service center for carburetor
adjustment.
Engine starts but
will not run proper-
ly at high speed. Carburetor requires
“H” (High Jet)
adjustment.
Contact an authorized service center for carburetor
adjustment.
Engine does not
reach full speed
and/or emits ex-
cessive smoke. Lubricant/fuel
mixture incorrect.
Air filter is dirty.
Spark arrestor
screen is dirty.
Carburetor requires
“H” (High Jet)
adjustment.
Use fresh fuel and the correct 2-cycle 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/Clean-
ing the Spark Arrestor Screen in the Maintenance sec-
tion of this manual.
Contact an authorized service center for carburetor
adjustment.
Chain specifications: 0.0325 pitch, .05 in. chain gauge
Length of Bar Guide Bar Part Number Chain Part Number Drive Links
20 in. 310629001 900920027 78 link
18 in. 310628001 901430001 72 link
TROUBLESHOOTING
BAR AND CHAIN COMBINATIONS