103
Use a 45° milling cutter to cut the valve seat to its
appropriate width.
All the indentation and uneven parts have to be
eliminated.
Standard width of valve seat ring
:
Inlet
:
0.8mm
Exhaust
:
0.8mm
If the contacting part is the place where the valve is too
high, please use a 32° flat milling cutter to lower the
valve seat.
If the contacting part is the place where the valve is
①
too low, please use a 60° inner milling cutter to elevate
the valve seat.
Use a 45° finishing milling cutter to cut the valve seat
to its appropriate specification.
After the cutting of the valve seat, please coat
②
polishing agent onto the surface of valve and polish the
valve slightly.
①:
high contacting surface
②:
low contacting surface
0.8mm
Installation
The installation sequence shall be in reversed sequence of removal.
Note:
When installing the valve spring, put the spring
pitch span
of smaller end towards the combustion
chamber. When installing the valve collet, please use valve spring compression tools.
When installing the valves, please grease the surface of valve lever with machine oil first, then
put it into the valve guide.
Содержание ZAFFERAN 250
Страница 1: ...1 ZAFFERANO 250 Service Manual ...
Страница 14: ...14 Ignition spark ignition DC capacitance system Diameter of rear brake disc mm φ250mm ...
Страница 46: ...46 Ignition system 1 Battery 2 Starter Relay 3 Power lock assembly 4 Flash apparatus 5 Rectifier 6 Horn 7 ECU ...
Страница 50: ...50 B L B R BL W W G B BL W W G B ...
Страница 80: ...80 Rear Wheel Rear Suspension ...
Страница 85: ...85 Lubricating system diagram 1 camshaft 2 oil pump 3 crank 4 fuel filter ...
Страница 90: ...90 Cooling System Connects to radiator Flows back to radiator Water pump ...
Страница 93: ...93 Cylinder Head Valves ...
Страница 104: ...104 Cylinder Body and Piston cam chain sliders piston cylinder body piston pin piston ring assembly base gasket ...
Страница 112: ...112 Driving Disc Clutch Driven Wheel ...
Страница 113: ...113 V BELT CLUTCH AND SECONDARY PRIMARY SHEAVE CRANKCASE FILTER COVER AND CRANKCASE COVER LEFT ...
Страница 114: ...114 V BELT CLUTCH AND SECONDARY PRIMARY SHEAVE ...
Страница 115: ...115 SECONDARY SHEAVE ...
Страница 126: ...126 input shaft middle shaft output shaft ...
Страница 130: ...130 left crankcase crankshaft right crankcase ...
Страница 131: ...131 magneto start the main gear gasket ...
Страница 143: ...143 Inspection and Maintenance of Electronic Fuel Injection EFI System ...
Страница 165: ...165 17 2 7 2 Appearance of the oxygen sensor ...
Страница 179: ...179 Then check the corresponding fault according to the fault code list ...