PIAGGIO Beverly Tourer 300 i.e. - Page 24

- Check the concentricity of the valve head by ar-
ranging a dial gauge at right angle relative to the
valve head and rotate it on a "V" shaped abutment.
Characteristic
Admissible limit:
0.03 mm
Measure the valve guide.
Characteristic
Valve guide:
5 +0.012 mm
- After measuring the valve guide diameter and the
valve stem diameter, check clearance between
guide and stem.
INTAKE
Specification
Desc./Quantity
Standard clearance: 0.013 - 0.04 mm
Admissible limit: 0.08 mm
EXHAUST
Specification
Desc./Quantity
Standard clearance: 0.025 to 0.052 mm
Admissible limit: 0.09 mm
- Check that there are no signs of wear on the surface of contact with the articulated register terminal.
Characteristics Beverly Tourer 300 i.e.
CHAR - 24