Troubleshooting - Ryobi RY3714VNM Operator's Manual

Problem
Engine will not No spark.
start.
Engine is flooded.
Engine starts but Carburetor requires
will not accelerate "L" (Low Jet) adjust-
properly. ment.
Engine starts, then Carburetor requires
dies. "L" (Low Jet) adjust-
ment.
Engine starts but Carburetor requires
will not run prop- "H" (High Jet) adjust-
erly at high speed. ment.
Engine does not Lubricant/fuel mixture
reach full speed incorrect.
and/or emits ex-
Air filter is dirty.
cessive smoke.
Carburetor requires
"H" (High Jet) adjust-
ment.
Engine starts, runs, Carburetor requires
and accelerates adjustment to idle
but will not idle. speed.
Chain turns at idle. Carburetor requires
adjustment to idle
speed.
Air leak in the intake
system.

TROUBLESHOOTING

Possible Cause
Page 38 — English
Check spark. Remove air filter cover. Remove spark
plug from cylinder. Reattach the spark plug wire and lay
spark plug on top of cylinder with the metal part of plug
touching the cylinder. Pull the starter grip and watch for
spark at spark plug tip. If there is no spark, repeat test
with a new spark plug.
Remove spark plug. Move choke knob to RUN position
(pushed in completely) and pull starter grip 15 to 20
times. This will clear excess fuel from engine. Clean
and reinstall spark plug. Push and fully release primer
bulb 10 times. Pull starter three times with choke knob
at RUN. If engine does not start, move choke knob to
HALF CHOKE and repeat normal starting procedure. If
engine still fails to start, repeat procedure with a new
spark plug.
Contact a qualified service center for carburetor adjust-
ment.
Contact a qualified service center for carburetor adjust-
ment.
Contact a qualified service center for carburetor adjust-
ment.
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.
Contact a qualified service center for carburetor adjust-
ment.
Turn idle speed screw "T" clockwise to increase idle
speed. Refer to Adjusting the Carburetor in the
Maintenance section of this manual.
Turn idle speed screw "T" counterclockwise to de-
crease speed. Refer to Adjusting the Carburetor in
the Maintenance section of this manual.
Contact a qualified service center for a rebuild kit.
Solution