Yard-Man 614 - SECTION 11: TROUBLESHOOTING; Engine Troubleshooting; Vibration and Cut Issues

SECTION11: TROUBLESHOOTING
Trouble
Engine fails to start
Engine runs erratic
Possible Cause(s)
PTO knob (or lever) engaged.
Parking brake not engaged.
Spark plug wire(s) disconnected.
Throttle control lever not in correct
starting position.
Choke not activated
Fuel tank empty, or stale fuel.
Blocked fuel line.
Faulty spark plug.
Engine flooded.
Unit running with CHOKE applied.
Spark plug wire(s) loose.
Blocked fuel line or stale fuel.
Vent in gas cap plugged.
Water or dirt in fuel system.
Dirty air cleaner.
Corrective Action
Disengage PTO.
Engage parking brake.
Connect wire(s) to spark plug.
Place throttle lever to FAST or CHOKE position.
Engine overheats Engine oil level tow.
Air flow restricted.
Engine hesitates at high RPM Spark plug gap too close. Remove spark plug and reset the gap.
Idles poorly Spark plug fouled, faulty or gap too Replace spark plug. Set plug gap.
wide.
Dirty air cleaner. Replace air cleaner cartridge/element or clean pre-
cleaner, if so equipped.
Excessive vibration Cutting blade loose or unbalanced. Tighten blade and spindle. Balance blade.
Damaged or bent cutting blade. Replace blade.
Uneven cut Deck not balanced properly. Perform side-to-side deck adjustment.
Dull blade. Sharpen or replace blade.
Uneven tire pressure. Check tire pressure in all four tires.
Pull out the CHOKE control or move throttle lever to
CHOKE position
Fill tank with clean, fresh (tess than 30 days old) gas.
Clean fuel line or replace fuel filter, if so equipped.
Clean, adjust gap or replace plug.
Crank engine with throttle in FAST position.
Deactivate CHOKE.
Connect and tighten spark plug wire(s).
Clean fuel line; fill tank with clean, fresh (less than 30
days old) gasoline. Replace fuel filter, if so equipped.
Clear vent or replace cap if damaged.
Drain fuel tank. Refill with clean, fresh (tess than 30
days old) gasoline.
Replace air cleaner cartridge/element or clean pre-
cleaner, if so equipped.
Fill crankcase with proper capacity and weight of oil.
Clean grass clippings and debris from around the
engine's cooling fins and blower housing.
28