Troubleshooting - Toro 51958-314000001 Operator's Manual

Troubleshooting

Problem
Engine will not start
Engine does not reach full speed and
emits excessive smoke
Line will not advance when using auto-
matic line lengthening
Grass wraps around the trimmer head
assembly and the attachment shaft
Oil drips from muffler
24
Possible Cause
1. No spark
2. No fuel
3. Flooded engine
4. Starter cord pulls harder now then
when new
1. Check oil fuel mixture
2. Air filter is dirty
3. Spark arrestor screen is dirty
1. Line welded to itself
2. Not enough line on the spool
3. Line worn too short
4. Line tangled on spool
5. Engine speed too slow
1. Cutting tall grass at ground level
2. Operating the product at part
throttle
1. Operating the product at part
throttle
2. Check oil/fuel mixture
3. Air filter is dirty
Solution
1. Remove the spark plug. Reattach
the spark plug cap and lay the
spark plug on the metal cylinder.
Pull the starter cord and watch
for a spark at the spark plug tip.
If there is no spark, repeat the test
with a new spark plug.
2. Push primer bulb until the bulb is
full of fuel. If the bulb does not fill,
the primary fuel delivery system
is blocked. If the primer bulb fills,
the engine may be flooded. (See
next item.)
3. Remove the spark plug. Turn the
product so that the spark plug hole
is aimed at the ground. Make sure
the choke lever is set to RUN and
pull the starter cord 10 to 14 times.
This clears excess fuel from the
engine. Clean and reinstall the
spark plug. With the trigger fully
depressed, pull the starter cord 3
times. If the engine does not start,
set the choke lever to FULL and
follow normal starting instructions.
If the engine still fails to start,
repeat the procedure with a new
spark plug.
4. Contact an authorized service
dealer.
1. Use fresh fuel and the correct
2-cycle oil mix.
2. Clean the air filter.
3. Clean the spark arrestor.
1. Lubricate with silicone spray.
2. Install more line.
3. Pull line while alternately pressing
down on and releasing the retain-
ing cap.
4. Remove line from spool and re-
wind.
5. Advance line at full throttle.
1. Cut tall grass from the top down.
2. Operate the product at full throttle.
1. Operate the product at full throttle.
2. Use fresh fuel and the correct
2-cycle oil mix.
3. Clean the air filter.
Troubleshooting