Trimmer User Manual

Page 19
TROUBLESHOOTING
PROBLEM POSSIBLE CAUSE SOLUTION
IF THESE SOLUTIONS DO NOT SOLVE THE PROBLEM CONTACT YOUR AUTHORIZED SERVICE DEALER.
1. Check spark. Remove spark plug. Reattach the
spark plug cap and lay spark plug on metal cyl-
inder. Pull the rope and watch for spark at spark
plug tip. If there is no spark, repeat test with a
new spark plug.
2. 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.
3. Squeeze the trigger and pull the rope repeatedly
until the engine starts and runs.
NOTE: Depending on the severity of the flooding,
this may require numerous pulls of the rope.
1. Use fresh fuel and the correct 2-cycle oil mix.
(50:1).
2. Clean air filter. Refer to “Replacing and Cleaning
Air Filter” earlier in this manual.
3. Contact a servicing dealer.
4. Clean or replace spark plug. Reset spark plug
gap. Refer to “Spark Plug Replacement” earlier
in this manual.
1. Turn idle speed screw clockwise to increase idle
speed. See Figure 22.
1. Lubricate string with silicone spray.
2. Install more string. Refer to “String Replacement”
earlier in this manual.
3. Pull strings while alternately pressing down on
and releasing spool retainer.
4. Remove string from spool and rewind Refer to
“String Replacement” earlier in this manual.
5. Advance string at full throttle.
Engine will not start:
Engine does not reach full
speed and emits excessive
smoke:
Engine starts, runs, and ac-
celerates but will not idle:
String will not advance:
1. No spark.
2. No fuel.
3. Engine is flooded.
1. Incorrect oil/fuel mixture.
2. Air filter is dirty.
3. Spark arrestor screen is dirty.
4. Spark plug fouled.
1. Idle speed screw on carburetor
needs adjustment.
1. String is welded to itself.
2. Not enough string on spool.
3. String is worn too short.
4. String is tangled on spool.
5. Engine speed is too slow.
Fig. 22
IDLE SPEED
SCREW