Onan BF Series User Manual

ENGINE TROUBLESHOOTING
STARTING SYSTEM
• •
Loose or Corroded Battery Connection
• •
Low or Discharged Battery
• •
Faulty Starter
•
Faulty Start Solenoid
•
a
• • • •
Ignition Timing Wrong ,
•
• •
Wrong Spark Plug Gap
•
u
•
Worn Points or Improper Gap Setting
n
•
Bad Ignition Coil or Condenser
a
•
Faulty Spark Plug Wires
-
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FUEL SYSTEM
• •
Out of Fuel - Check
• • • • • •
Lean Fuel Mixture - Readiust
t
• • • •
Rich Fuel Mixture or Choke Stuck
a
• • •
Engine Flooded
• • • • •
Poor Qual ity Fuel
• • • •
Dirty Carburetor
• • • • • • • •
Dirty Air Cleaner
• • •
Dirty Fuel Filter
• • • •
Defective Fuel Pump
INTERNAL ENGINE
• • • • •
Wrong Valve Clearance
• • • • • •
Broken Valve Spring
• • • • •
Valve or Valve Seal Leaking
• • • •
Piston Rings Worn or Broken
• • • • •
Wrong Bearing Clearance
COOLING SYSTEM (AIR COOLED)
• •
Poor Air Circulation
• •
Dirty or Oily Cooling Fins
• • • •
Blown Head Gasket
COOLING SYSTEM (WATER COOLED)
•
Insufficient Coolant
•
Faulty Thermostat
•
Worn Water Pumo or Pumo Seal
•
Water Passages Restricted
•
Defective Gaskets
• • • • • •
Blown Head Gasket
LUBRICATION SYSTEM
• •
Defective Oil Gauge
• •
Relief Valve Stuck
• • • • • • •
Faulty Oil Pump
• • • • • •
Dirty Oil or Filter
• • • • • • • • • •
Oil Too Light or Diluted
• • • • • • • •
Oil Level Low
• •
Oil Too Heavy
• * • •
Dirty Crankcase Breather Valve
THROTTLE AND GOVERNOR
• •
Linkage Out of Adjustment
•
Linkage Wom or Disconnected
•
Governor Spring Sensitivity Too Great
•
Linkage Binding
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11

Onan BF Series Specifications

General

Brand	Onan
Model	BF Series
Category	Welding System
Language	English