Problem, Cause, Correction – Craftsman 917.271050 User Manual

Page 29: Loss of power, Excessive, Engine continues to run

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TROUBLESHOOTING CHART

PROBLEM

CAUSE

CORRECTION

Engine clicks but
will not start

Weak or dead battery.

Corroded battery terminals.
Loose or damaged wiring.
Faulty solenoid or starter.

Recharge or replace battery.

Clean battery terminals.
Check all wiring.
Check/replace solenoid or
starter.

Loss of power

Cutting too much grass/too

fast.
Throttle in “CHOKE”

position.
Build-up of grass, leaves
and trash under mower.
Dirty air filter.
Low oil level/dirty oil.

Faulty spark plug.

Dirty fuel filter.
Stale or dirty fuel.

Water in fuel.

Spark plug wire loose.

Dirty engine air screen/fins.
Dirty/clogged muffler.
Loose or damaged wiring.

Carburetor out of
adjustment.

Engine valves out of

adjustment.

Set in “Higher Cut” position/
reduce speed.

Adjust throttle control.

Clean underside of mower
housing.
Clean/replace air filter.
Check oil level/change oil.
Clean and regap or change
spark plug.

Replace fuel filter.
Drain fuel tank and refill with

fresh gasoline.

Drain fuel tank and carbure

tor, refill tank with fresh
gasoline and replace fuel
filter.

Connect and tighten spark

plug wire.
Clean engine air screen/fins.

Clean/replace muffler.

Check all wiring.
See “To Adjust Carburetor” in

Service Adjustments section.

Contact an authorized

service center/department.

Excessive

vibration

• Worn, bent or loose blade.

• Bent blade mandrel.
• Loose/damaged part(s).

Replace blade.

Tighten blade bolt.

Replace blade mandrel.

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 an autho

rized service center/

department.

29

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