Homelite UT70127A - Manual (Page 20)

20
TROUBLESHOOTING
PROBLEM POSSIBLE CAUSE SOLUTION
IF THESE SOLUTIONS DO NOT SOLVE THE PROBLEM, CONTACT YOUR AUTHORISED SERVICE DEALER.
1. Check spark. Remove sparking plug. Reattach
the sparking plug cap and lay sparking plug on
metal cylinder. Pull the starter rope and watch
for spark at sparking plug tip. If there is no
spark, repeat test with a new sparking 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 (see
next item).
3. Remove sparking plug, turn trimmer so
sparking plug hole is aimed at the ground.
Make sure lever is in the “WARM START”
position and pull starter cord 10 to 14 times.
This will clear excess fuel from engine. Clean
and reinstall sparking plug. With the throttle
trigger fully depressed, pull starter cord three
times with lever at “WARM START” position. If
engine does not start, move choke lever to
“COLD START” and follow normal starting
instructions in “STARTING AND STOPPING”
section. If engine still fails to start, repeat
procedure with a new sparking plug.
4. Contact a service dealer.
Release throttle trigger. Refer to “Starting and
Stopping” earlier in this manual.
*Turn “L” needle anticlockwise 1/16 turn. If “L” low
needle cannot be turned anticlockwise; do not force
plastic limiter caps. Contact a service dealer.
See
Figure 27.
1. Use fresh fuel and the correct 2-cycle oil mix.
2. Clean air filter. Refer to “Replacing and Cleaning
Air Filter” earlier in this manual.
3. Turn “H” needle clockwise 1/16 - 1/8 turn. See
Figure 27.
Turn idle speed screw clockwise to increase
idle speed. See
Figure 27.
Turn idle speed screw anticlockwise to reduce
idle speed.
See Figure 27. If after adjustment,
blade continues to rotate, return to an authorised
service dealer for repair.
Engine will not start:
Lever will not go into the
“COLD START” position:
Engine starts but will not
accelerate:
Engine does not reach full
speed and emits excessive
smoke:
Engine starts, runs, and ac-
celerates but will not idle:
Blade continues to rotate at
idle speed:
1. No spark.
2. No fuel.
3. Flooded engine.
4. Starter rope pulls harder now than
when new.
Throttle trigger is depressed.
Carburettor requires adjustment.
1. Check oil fuel mixture.
2. Air filter dirty.
3. Carburettor requires adjustment.
Carburettor requires adjustment.
Carburettor requires adjustment.