11 — English
TROUBLESHOOTING
PROBLEM
POSSIBLE CAUSE
SOLUTION
Engine will not start
No spark.
No fuel.
Engine is flooded.
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. Contact a service
dealer. If primer bulb fills, engine may
be flooded, proceed to next item.
Set the choke lever to the
START
position. Squeeze the trigger and pull
the starter grip and rope repeatedly
until the engine starts and runs.
NOTE
: Depending on the severity of
the flooding, this may require numerous
pulls of the rope.
Engine does not reach full speed and
emits excessive smoke
Incorrect lubricant/fuel mixture.
Air filter is dirty.
Spark arrestor screen is dirty.
Spark plug fouled.
Use fresh fuel and the correct 2-cycle
lubricant mix (50:1).
Clean foam air filter. Refer to
Cleaning
Air Filter
Screen
earlier in this manual.
Contact a qualified service center.
Clean or replace spark plug. Reset
spark plug gap. Refer to
Spark Plug
Replacement
earlier in this manual.
Engine starts, runs, and accelerates
but will not idle
Idle speed screw on carburetor needs
adjustment.
Turn idle speed screw clockwise to
increase idle speed.
See Figure 9.
If problem persists after trying the above solutions, contact customer service or a qualified service center for assistance.
NOTICE:
As the equipment owner, you are responsible for the performance of the required maintenance listed in the
Maintenance
section. It is recommended that you retain all receipts covering maintenance on your equipment. Neglecting or failing
to perform the required maintenance may increase emissions, decrease fuel efficiency, degrade performance, cause ir-
reversible engine damage and/or void your warranty.
This product has a Three-year Limited Warranty for personal,
family, or household use (90 days for business or commercial use).
For warranty details, visit www.ryobitools.com
or call (toll free) 1-800-860-4050.
