Ryobi RY09440 - Manual (Page 16)

12 - English
TROUBLESHOOTING
IF THESE SOLUTIONS DO NOT SOLVE THE PROBLEM, CONTACT YOUR AUTHORIZED SERVICING DEALER.
PROBLEM CAUSE REMEDY
Engine fails to start. No fuel in tank.
Spark plug shorted or fouled.
Spark plug is broken. (cracked
porcelain or electrodes broken)
Ignition lead wire shorted, broken, or
disconnected from spark plug.
Ignition inoperative. Fill tank.
Replace spark plug.
Replace spark plug.
Replace lead wire or attach to spark
plug.
Contact authorized service center.
Engine hard to start. Water in gasoline or stale fuel mixture.
Engine is under or over choked.
Weak spark at spark plug.
Drain entire system and refill with fresh
fuel.
Adjust choke as necessary.
Contact authorized service center.
Engine lacks power. Air filter clogged. Clean air filter. Refer to Cleaning the
Air Filter Screen earlier in this manual.
Engine overheats. Insufficient lubricant in fuel mixture. Mix fuel as described in starting
instructions.
Engine starts, runs, and accelerates
but will not idle Idle speed screw on carburetor needs
adjustment. Turn idle speed screw clockwise to in-
crease idle speed. See Figure 16.
Engine emits too much smoke Too much oil in crankcase. Drain lubricant and refill with correct
amount of 10W-30 engine lubricant. See
Adding/Checking Engine Lubricant in
the Operation section of this manual.
Engine rope cannot be pulled Oil has entered the combustion
chamber. 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.