Bar And Chain Combination; Troubleshooting - Homelite UT10510A Operator's Manual

Length of Bar
14 in. Power Tip
PROBLEM
Engine will not start.
(Make sure Ignition
Switch is in start
position "I".)
Engine starts but will
not accelerate properly.
Engine starts but will
not run properly at high
speed.
Engine does not reach
full speed and/or emits
excessive smoke.
BAR AND CHAIN COMBINATIONS
Guide Bar Part Number

TROUBLESHOOTING

POSSIBLE CAUSE
1. No spark.
2. Flooded engine.
Carburetor requires "L" (Low jet)
adjustment.
Carburetor requires "H" (High jet)
adjustment.
1. Oil / Fuel mixture is incorrect.
2. Air filter is dirty.
3. Spark arrester screen is dirty.
4. Carburetor requires "H" (High
jet) adjustment.
PS06331
1. Check spark. Remove air filter cover. Remove spark
plug from cylinder. Reattach the spark plug wire
and lay spark plug on top of cylinder with the metal
part of plug touching the cylinder. Pull the starter
rope and watch for spark at spark plug tip. If there
is no spark, repeat test with a new spark plug.
2. With the Ignition Switch off, remove spark plug.
Move choke lever to run position (pushed in com-
pletely) and pull starter cord 15 to 20 times. This
will clear excess fuel from engine. Clean and
reinstall spark plug. Set Ignition Switch to run (I)
position. Push and fully release primer bulb 7 times.
Pull starter three times with choke lever at run. If
engine does not start, move choke lever to choke
and repeat normal starting procedure. If engine still
fails to start, repeat procedure with a new spark
plug.
Contact a Homelite Service Center for carburetor
adjustment.
Contact a Homelite Service Center for carburetor
adjustment.
1. Use fresh fuel and the correct 2-cycle oil mix ratio.
2. Clean air filter. Refer to "Maintenance – Cleaning the
Air Filter" earlier in this manual.
3. Clean spark arrestor screen. Refer to "Maintenance
– Cleaning the Spark Arresting Muffler" earlier in this
manual.
4. Contact a Homelite Service Center for carburetor
adjustment.
Page 33
Chain Part Number
984296005
SOLUTION