Asus 136-480A - Manual (Page 16)

TROUBLE SHOOTING CHART FOR RECOIL START MODELS
CAUTION: ALWAYS DISCONNECT SPARK PLUG BEFORE ATTEMPTING ANY REMEDY.
TROUBLE LOOK FOR REMEDY
Engine fails to start. Safety System If the engine wili not start be sure the clutch control is dis­
engaged; blade controls disengaged, the throttle control is
set and the key is turned on.
A. Disconnect the yellow wire from the engine. This comes
from the ignition switch.
B. If the engine fails to start the problem is with the engine,
not the safety system.
C. If the engine starts, the problem is with the safety system.
Check the yellow wire for a ground.
D. Check the operation of the switch behind the recoil start­
er handle.
E. If the engine stops when the clutch or blade is en­
gaged, the recoil handle is not pushed into the receptacle
and twisted a quarter turn.
Blocked fuel line or
empty gas tank. Clean fuel line; check fuel supply. Also check fuel shut-off
valve.
Defective spark
plug.
Spark plug lead wire disconnected.
Faulty spark plug—spark should jump gap between control
electrode and side electrode. If spark does not jump, re­
place spark plug.
NOTE: Use insulated pliers to hold the spark plug wire.
Throttle setting. Throttle control lever not in the starting position.
Loose connections Spark plug wire loose.
Hard starting or loss of
power. Dirty air cleaner. Remove air cleaner and clean as outlined in Engine
Manual.
Carburetor improp
erly adjusted. Review paragraph Carburetor Adjustment.
Excessive vibration. Bent or damaged
blade spindle. Stop engine immediately; tighten all bolts and make all nec­
essary repairs. If vibration continues, have the unit serviced
by a competent repairman.
Unit fails to discharge
grass.
Discharge chute
clogged.
Clean discharge chute artd inside of deck.
Foreign object
lodged in deck. Remove object from deck. See CAUTION following step 1 in
paragraph Operation.
Engine overheats. Obstructions in air
passages. Remove any obstruction from air passages in shroud.
Grass and dirt in engine shroud.
Clean cooling fins.
Oil level. Fill crankcase to proper oil level.
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