Craftsman 917.20386 Operator's Manual page 29

TROUBLESHOOTING CHART:
See appropriate section in manual unless directed to Sears service center
PROBLEM CAUSE CORRECTION
Loss of power 1 Cutting too much grass_oofast. 1 Raise cutting heigh_reduce
speed.
2 Throttle in "CHOKE" position. 2 Adjust throttle control.
3 Build-up of grass, leaves and 3 Clean underside of mower
trash under mower, housing.
4 Dirty air filter. 4 Clean/replace air filter.
5 Low oil level/dirty oil. 5 Check oil level/change oil.
6 Faulty spark plug. 6 Clean and regap or change spark
plug.
7 Dirty fuel filter. 7 Replace fuel filter.
8 Stale or dirty fuel.
9 Water in fuel.
8
9
Empty fuel tank and refill tank wig-
fresh, clean gasoline.
Empty fuel tank and carburetor,
refill tank with fresh gasoline and
replace fuel filter.
10 Spark plug wire loose. 10 Connect and tighten spark plug
wire.
11 Dirty engine air screen/fins. 11 Clean engine air screen/fins.
12 Dirty/clogged muffler. 12 Clean/replace muffler.
13 Loose or damaged wiring. 13 Check all wiring.
14 Engine valves out of adjustment. 14 Contact a Sears or other qualified
service center.
Excessive vibration 1 Worn, bent or loose blade. 1 Replace blade. Tighten blade bolt
2 Bent blade mandrel. 2 Contact a Sears or other
qualified service center.
3 Loose/damaged part(s). 3 Tighten loose part(s).
Replace damaged parts.
Engine continues to
run when operator
leaves seat with
attachment clutch
engaged
Faulty operator-safety presence
control system.
Check wiring, switches and
connections. If not corrected,
contact a Sears or other qualified
service center.
_ CAUTION: DO NOT
operate machine until
problem is corrected,
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