102
Refinishing of the Valve Seat
Use a 45° milling cutter to clear out the rough or
uneven parts on the surface of the valve seat.
Note: Coat the valve seat ring with a transparent or
Prussian blue coating to see more clearly.
Use a 32° milling cutter to clear out the 1/4 of the
outer end of valve seat.
rough
32°
Use a 60° milling cutter to clear out the 1/4 of the
bottom of valve seat. Take down the milling cutter and
inspect the treated parts.
60°
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 ...