Page 17

GPX NC450 - Page 17

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31

Table of Contents

Troubleshooting2
Maintenance Notice2
Low Cylinder Pressure2
Exhaust with Black Smoke2
Disassembly and Maintenance of Cylinder Head Assembly3
Removal of Cylinder Head Cover4
Disassembly of the Cylinder Head5
Inspection of Valves and Valve Springs6
Inspection of Rocker Arm and Rocker Arm Shaft6
Inspection of the Cylinder Head7
Assembly of the Cylinder Head8
Installation of the Cylinder Head9
Installation of the Cylinder Head Cover12
Cylinder Block and Piston Repair13
Assembly Drawing14
Disassembly of the Cylinder15
Cylinder Block Inspection15
Disassembly of the Piston16
Inspection of Pistons and Piston16
Piston Ring Installation18
Piston Installation20
Installation of the Cylinder Block20
Clutch, Driving Gear, Overrunning Clutch, Oil Pump, Shifting Mechanism21
Water Pump Cover Removal22
Right Crankcase Cover Removal22
Clutch Removal23
Dismantling of Driving Gear23
Removal of the Right Body Oil Pump23
Disassembly of the Double Gear24
Removal of the Gearshift24
Removal of Starter Motor24
Inspection of Right Crankcase Cover25
Inspection of Clutch Active Friction Plate26
Inspection of Clutch Cover27
Inspection of the Overrunning Clutch27
Inspection of the Right Body Oil Pump27
Assembly of the Gearshift Mechanism28
Assembly of the Right Body Oil Pump28
Installation of Starting Gear and Overrunning Clutch29
Installation of Driving Gear30
Installation of the Clutch30
Assembly of the Starter Motor31
Installation of the Right Crankcase Cover31
Magnetic Motor and Balanced Main and Driven Gear32
Removal of Left Crankcase Cover32
Disassembly of the Magneto32
Dismantling of Balance Main and Driven Teeth33
Removal of the Left Body Oil Pump33
Inspection of Left Crankcase Cover33
Left Body Oil Pump Inspection34
Installation of the Left Body Oil Pump34
Installation of Balanced Main and Driven Gears34
Installation of the Magneto Rotor35
Installation of Magneto Stator36
Disassembly of the Crankcase38
Crankshaft Inspection38
Inspection of Main and Countershaft Components39
Inspection of Oil Filter Parts and Oil Filter39
Close the Box40

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