Yazoo/Kees ZHDD61271 - Manual (Page 52)

52
TROUBLE SHOOTING GUIDE
Trouble Shooting Guide
Problem Cause
The engine will not start. • The control for engaging the mower deck is
not depressed.
• The steering controls are not locked in the
neutral position.
• The driver is not sitting in the driver’s seat.
• The parking brake is not activated.
• The battery is dead.
• Contamination in the fuel line.
• The fuel supply is closed or the valve
for the fuel tanks is in the wrong position.
• Clogged fuel filter or fuel line.
The starter motor does not turn the
engine over. • Dead battery.
• Poor contacts on the battery terminal
cable connections.
• Fuse blown.
• Ignition system faulty. The engine runs unevenly.
• Defective valves.
• Defective piston, cylinder, piston ring, or
cylinder head seal.
• The cylinder head bolts are loose.
• Clogged fuel filter or jet.
• Clogged ventilation valve on the fuel cap.
• Fuel tank nearly empty.
• Wrong fuel type.
• Water in the fuel.
• Clogged air filter.
The engine seems weak. • Clogged air filter.