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4.Cylinder head/valve
Check the valve seat
If the valve seat is too wide, too narrow or has dents,
the valve seat must be ground and trimmed.
Valve seat width
Available limit: 1.6mm
Check the contact surface of the valve seat.
Grinding valve seat
The worn seat surface must be trimmed with a special
valve seat surface dresser.
Use a 45
°
seat surface dresser to grind any rough or
irregular surfaces of the seat.
Use a 32° cutter to remove 1/4 of the upper seat
surface.
Use a 60° cutter to remove 1/4 of the lower seat
surface.
Remove the cutter and check the new seat surface.
After the air valve guide is replaced, the seat
surface must be corrected with a 45° dresser.
NOTE
Roughness
Width of old valve seat
Summary of Contents for A180
Page 2: ......
Page 12: ...ZHEJIANG KAYO MOTOR CO LTD 4 4 1 2 3...
Page 26: ...ZHEJIANG KAYO MOTOR CO LTD 1 Taillight connection cord 2 Taillight 1 2...
Page 41: ...3 3 I Inspect Note When driving in a dusty place it should be cleaned frequently...
Page 75: ...ZHEJIANG KAYO MOTOR CO LTD 8 1 8 9 Generator starting clutch 8 9 1 9 5 Crankshaft axle box 9...
Page 77: ...1 Preparation of information fault diagnosis...
Page 80: ...1 Preparation of information fault diagnosis...
Page 106: ...3 Lubrication system...
Page 108: ...3 Lubrication system...
Page 115: ...Lubrication system Install the starting gear and alternator set See Chapter 8 bolt X2...
Page 128: ...4 Cylinder head valve Do not damage the joint surface of the cylinder head...
Page 157: ...6 V belt drive system...
Page 162: ...Remove the hammer roller from the sliding drive plate Sliding drive plate Hammer roller...
Page 174: ...Use pliers to snap the spring into the groove spring Clutch block...
Page 190: ...8 Alternator Starting clutch Flywheel puller Universal fixator...
Page 213: ......