91
10. Cooling System
Preparing Documents ---------------------- 10.1
Failure Diagnosis ---------------------------- 10.2
Water Pump ---------------------------------- 10.3
10.1
Preparing Documents
Function of the cooling system:
The cooling method of the engine is water cooling. Water cooling, in which the water is used as the
heat conductor, is a method of cooling high-temperature components and then transferring heat to
the outside air, thus keeping the engine working under the optimum temperature.
Specific cooling circuit:
The cooling water entering from the crankcase goes to the cylinder water jacket through the water
channel of the crankcase, then goes upward through the cylinder cover, finally enters into the
radiator through the pipe to dissipate heat, and transfers heat to the outside air with the help of the
radiator’s fins.
10.2
Failure Diagnosis
Water leakage
Damaged seals
Broken pump assembly
Broken water hose
Over high temperature in cylinder block
Damaged blade of the water pump
10.3 Water Pump
Disassembly
Loosen the bolt, and remove the water pump sub
assembly.
①
①:
bolt
②
:
water pump cover
②
Summary of Contents for ZAFFERAN 250
Page 1: ...1 ZAFFERANO 250 Service Manual ...
Page 14: ...14 Ignition spark ignition DC capacitance system Diameter of rear brake disc mm φ250mm ...
Page 50: ...50 B L B R BL W W G B BL W W G B ...
Page 80: ...80 Rear Wheel Rear Suspension ...
Page 85: ...85 Lubricating system diagram 1 camshaft 2 oil pump 3 crank 4 fuel filter ...
Page 90: ...90 Cooling System Connects to radiator Flows back to radiator Water pump ...
Page 93: ...93 Cylinder Head Valves ...
Page 112: ...112 Driving Disc Clutch Driven Wheel ...
Page 114: ...114 V BELT CLUTCH AND SECONDARY PRIMARY SHEAVE ...
Page 115: ...115 SECONDARY SHEAVE ...
Page 126: ...126 input shaft middle shaft output shaft ...
Page 130: ...130 left crankcase crankshaft right crankcase ...
Page 131: ...131 magneto start the main gear gasket ...
Page 143: ...143 Inspection and Maintenance of Electronic Fuel Injection EFI System ...
Page 165: ...165 17 2 7 2 Appearance of the oxygen sensor ...
Page 179: ...179 Then check the corresponding fault according to the fault code list ...