Trouble shooting chart – Bolens 116-312-000 User Manual
Page 15
Attention! The text in this document has been recognized automatically. To view the original document, you can use the "Original mode".

Trouble Shooting Chart
Problem
Cause
Remedy
1 Engine fails to start
A Blade control handle
A Engage blade control handle.
disengaged
B Check fuel tank for gas
B Fill tank if empty.
C Fuel shut-off valve closed
C Open fuel shut-off valve.
(on engines so equipped)
D Spark plug lead wire discon-
D Connect lead wire.
nected
E Throttle control lever not in
E Move throttle lever to start
the starting position
position.
F Faulty spark plug
F Spark should jump gap be-
tween control electrode and
side electrode. If spark does
not jump, replace the spark
plug.
G Carburetor improperly ad-
G Remove spark plug, dry the
justed, engine flooded
plug, crank engine with plug
removed, and throttle in off po
sition. Replace spark plug and
lead wire and resume starting
procedures.
H Old stale gasoline
H Drain and refill with fresh
gasoline.
1 Engine brake engaged
1 Follow starting procedure.
2 Hard starting or
A Spark plug wire loose
A Connect and tighten spark
loss of power
B Carburetor improperly
plug wire.
B Adjust carburetor. See separate
adjusted
engine manual.
C Dirty air cleaner
C Clean air cleaner as described
in separate engine manual.
3 Operation erratic
A Dirt in gas tank
A Remove the dirt and fill tank
B Dirty air cleaner
with fresh gas.
B Clean air cleaner as described
C Water in fuel supply
in separate engine manual.
C Drain contaminated fuel and
fill tank with fresh gas.
D Vent in gas cap plugged
D Clear vent or replace gas cap.
E Carburetor improperly
E Adjust carburetor. See
adjusted
separate engine manual.
4 Occasional skip
A Carburetor idle speed too
A Adjust carburetor. See
(hesitates) at high
slow
separate engine manual.
speed
B Spark plug gap too close
B Adjust to .030".
C Carburetor idle mixture ad-
C Adjust carburetor. See
justment improperly set
separate engine manual.
5 Idles poorly
A Spark plug fouled, faulty, or
A Reset gap to .030" or replace
gap too wide
spark plug.
B Carburetor improperly
B Adjust carburetor. See
adjusted
separate engine manual.
C Dirty air cleaner
C Clean air cleaner as described
in separate engine manual.
6 Engine overheats
A Carburetor not adjusted
A Adjust carburetor. See
properly
separate engine manual.
B Air flow restricted
B Remove blower housing and
clean as described in separate
engine manual.
C Engine oil level low
C Fill crankcase with the proper
oil.
7 Excessive vibration
A Cutting blade loose or
A Tighten blade and adapter.
unbalanced
Balance blade.
B Bent cutting blade
B Replace blade.
“N
Note: For repairs beyond the minor adjustments listed above, contact your local authorized service dealer.
15