Bolens 6A4E Servicehandbuch

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SECTION 9:  TROUBLE SHOOTING GUIDE
NOTE: 
For repairs beyond the minor adjustments above, contact your local authorized service dealer.
Trouble
Possible Cause(s)
Corrective Action
Engine fails to start
Fuel tank empty, or stale fuel.
Blocked fuel line.
Choke not in ON position
Faulty spark plug.
Key not in switch on engine.
Spark plug wire disconnected.
Primer button not depressed.
Fuel shut-off valve closed 
(if so equipped).
Fill tank with clean, fresh  gasoline. Fuel will not last over thirty days 
unless a fuel stabilizer is used.
Clean fuel line.
Move switch to ON position
Clean, adjust gap or replace.
Insert key.
Connect spark plug wire.
Refer to the engine manual.
Open fuel shut-off valve.
Engine runs erratic
Unit running on CHOKE.
Blocked fuel line or stale fuel.
Water or dirt in fuel system.
Carburetor out of adjustment.
Move choke lever to OFF position.
Clean fuel line; fill tank with clean fresh gasoline. Fuel will not last 
over thirty days unless a fuel stabilizer is used.
Drain fuel tank. Refill with fresh fuel.
Refer to the engine manual.
Loss of power
Spark plug wire loose.
Gas cap vent hole plugged.
Exhaust port plugged.
Connect and tighten spark plug wire.
Remove ice and snow from cap. Be certain vent hole is clear.
Clean following the engine manual.
Engine overheats
Carburetor not adjusted 
properly.
Incorrect fuel mixture.
Refer to the engine manual packed with your unit or have 
carburetor adjusted by an authorized service dealer.
Drain fuel tank. Refill with proper fuel mixture.
Excessive vibration
Loose parts or damaged auger.
Stop engine immediately and disconnect spark plug wire. Tighten 
all bolts and nuts. Make all necessary repairs. If vibration 
continues, have unit serviced by an authorized service dealer.
Unit fails to propel itself Incorrect adjustment of drive 
cable.
Drive belt loose or damaged.
Adjust drive cable.
Replace drive belt.
Unit fails to
discharge snow
Discharge chute clogged.
Foreign object lodged in auger.
Incorrect adjustment of drive 
cable.
Drive belt loose or damaged.
Stop engine immediately and disconnect spark plug wire. Clean 
discharge chute and inside of auger housing.
Stop engine immediately and disconnect spark plug wire. Remove 
object from auger.
Adjust drive cable.
Replace drive belt.