12
. COOLING SYSTEM
12-2
DINK50/ 125
SERVICE INFORMATION
GENERAL INSTRUCTIONS
•
The water pump must be serviced after removing the engine. Other cooling system service can be
done with the engine installed in the frame.
•
The engine must be cool before servicing the cooling system.
When the coolant temperature is over 100
℃
, never remove the radiator cap to release the
pressure because the boiling coolant may cause danger.
•
Avoid spilling coolant on painted surfaces because the coolant will corrode the painted surfaces.
Wash off any spilled coolant with fresh water as soon as possible.
•
After servicing the system, check for leaks with a cooling system tester.
SPECIAL TOOL
Mechanical seal driver
TORQUE VALUES
Water pump impeller
1.2 kgf-m (12 N-m, 9 lbf-ft) Left hand threads
Water pump cover bolt
1 kgf-m (10 N-m, 7 lbf-ft)
TROUBLESHOOTING
Engine temperature too high
Coolant leaks
•
Faulty temperature gauge or thermosensor
•
Faulty pump mechanical (water) seal
•
Faulty radiator cap
•
Deteriorated O-rings
•
Faulty thermostat
•
Damaged or deteriorated water hoses
•
Insufficient coolant
•
Passages blocked in hoses or water jacket
•
Clogged radiator fins
•
Passages blocked in radiator
•
Faulty water pump
Temperature gauge pointer does not register
the correct coolant temperature
•
Faulty temperature gauge or thermosensor
•
Faulty thermostat
Summary of Contents for Dink 50
Page 33: ...1 GENERAL INFORMATION 1 32 DINK 50 125 Fuel Tube Fuse Box Starter Relay Fuel Vacuum Tube...
Page 48: ...2 EXHAUST MUFFLER FRAME COVERS 2 1 DINK 50 125 SCHEMATIC DRAWING...
Page 66: ...3 INSPECTION ADJUSTMENT 3 3 DINK50 125 MAINTENANCE SCHEDULE DINK125 Only DINK125 Only...
Page 116: ...6 CYLINDER HEAD VALVES 6 1 DINK 50 125 SCHEMATIC DRAWING DINK 125...
Page 117: ...6 CYLINDER HEAD VALVES 6 2 DINK50 125 SCHEMATIC DRAWING DINK 50...
Page 146: ...7 CYLINDER PISTON 7 1 DINK 50 125 SCHEMATIC DRAWING DINK 125...
Page 147: ...7 CYLINDER PISTON 7 2 DINK50 125 SCHEMATIC DRAWING DINK 50...
Page 164: ...8 DRIVE AND DRIVEN PULLEYS KICK STARTER 8 1 DINK 50 125 SCHEMATIC DRAWING DINK 125...
Page 165: ...8 DRIVE AND DRIVEN PULLEYS KICK STARTER 8 2 DINK 50 125 SCHEMATIC DRAWING DINK 50...
Page 180: ...8 DRIVE AND DRIVEN PULLEYS KICK STARTER 8 17 DINK 50 125 Install the drive face boss Boss...
Page 200: ...9 FINAL REDUCTION 9 1 DINK 125 50 SCHEMATIC DRAWING DINK 125...
Page 201: ...9 FINAL REDUCTION 9 2 DINK 125 50 SCHEMATIC DRAWING DINK 50...
Page 216: ...10 A C GENERATOR STARTER CLUTCH 10 1 DINK 50 125 SCHEMATIC DRAWING DINK 125...
Page 217: ...10 A C GENERATOR STARTER CLUTCH 10 2 DINK 50 125 SCHEMATIC DRAWING DINK 50 1 A C G...
Page 218: ...10 A C GENERATOR STARTER CLUTCH 10 3 DINK 50 125 SCHEMATIC DRAWING DINK 50 2 R COVER...
Page 232: ...11 CRANKCASE CRANKSHAFT 11 1 DINK50 125 SCHEMATIC DRAWING DINK 125...
Page 233: ...11 CRANKCASE CRANKSHAFT 11 2 DINK 50 125 SCHEMATIC DRAWING DINK 50...
Page 245: ...12 COOLING SYSTEM 12 1 DINK50 125 SCHEMATIC DRAWING...
Page 268: ...13 FUEL SYSTEM CARBURETOR FUELPUMP FUEL TANK 13 1 DINK 50 125 FUEL SYSTEM DINK 125...
Page 269: ...13 FUEL SYSTEM CARBURETOR FUELPUMP FUEL TANK 13 2 DINK 50 125 SCHEMATIC DRAWING DINK 125...
Page 270: ...13 FUEL SYSTEM CARBURETOR FUELPUMP FUEL TANK 13 3 DINK 50 125 SCHEMATIC DRAWING DINK 50...
Page 287: ...13 FUEL SYSTEM CARBURETOR FUELPUMP FUEL TANK 13 20 DINK 50 125 Install the cap Cap...
Page 389: ...17 IGNITION SYSTEM 17 1 DINK 50 125 IGNITION SYSTEM LAYOUT DINK 125 IGNITION CIRCUIT DINK 125...
Page 423: ...20 WIRING DIAGRAMS DINK 50 125 20 DINK 125 20...