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22
PROBLEM POSSIBLE CAUSE SOLUTION
IF THESE SOLUTIONS DO NOT SOLVE THE PROBLEM CONTACT YOUR AUTHORIZED SERVICE DEALER.
TROUBLESHOOTING
1. Check spark. Remove spark plug. Reattach
the spark plug cap and lay spark plug on metal
cylinder. 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. Set the start lever to the START position. 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. See
Figure 23.
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 31.
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. 31
IDLE SPEED
SCREW