Onan LK Series User Manual

TROUBLESHOOTING GUIDE
STARTING SYSTEM'
• •
Loose or Corroded Battery Connection
• •
Low or Discharged Battery
•
a
Faulty Starter
a
Faulty Start Solenoid
IGNITION SYSTEM
•5"
• • • • • •
Ignition Timing Wrong
• • •
Wrong Spark Plug Gap
• • •
Worn Points or Improper Gap Setting
•
Bad Ignition Coil or Condenser
• •
Faulty Spark Plug Wires
FUEL SYSTEM
• •
Out of Fuel - Check
• • • • •
• • • •
.Rich Fuel Mixture or Choke Stuck
• • • •
Engine Flooded
• • • • • •
Poor Quality Fuel
• • • •
Dirty Carburetor
• • • •
a
• • •
Dirty Air Cleaner
• • •
• Dirty Fuel Filter
• • • •
Defective Fuel Pump
INTERNAL ENGINE
•
a
• • •
Wrong Valve Clearance
•
a
• • • •
Broken Valve Spring
• • • • •
Valve or Valve Seal Leaking
-* • • •
Piston Rings Worn or Broken
• • • • •
Wrong Bearing Clearance
COOLING SYSTEM (AIR COOLED) ;
• •
1
Poor Air Circulation
• •
Dirty or Oily Cooling Fins
• • • •
Blown Head Gasket
COOLING SYSTEM fWAT ER COOLED.
ft
•
a
Insufficient Coolant
•
•
•
•
Worn Water Pump or Pump Seal
Water Passages Restricted
Defective Gaskets
• • • • • •
Blown Head Gasket
LUBRICATION SYSTEM
• •
Defective Oil Gauge
• •
Relief Valve Stuck
• • • •
e
• •
Faulty Oi 1 Pump
• • • • • •
Dirty Oil or Fi Iter
• • • • • • • • •
•Oil Too Light or Diluted
• • • • • • • • •
Oi 1 Level Low
•
•
•
•
#
•
Dirty Crankcase Breather Valve
THROTTLE AND GOVERNOR
• •
Linkage Out of Adjustment
•
Linkage Worn or Disconnected
•
Governor Spring Sensitivity Too Great
•
Linkage Binding
21

Onan LK Series Specifications

General

Brand	Onan
Model	LK Series
Category	Portable Generator
Language	English