APRILIA MXV 450 - Owner's Manual download pdf (Page 30)

TECHNICAL INFORMATION

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ine 450 - 550

2.1.6. LIMIT VALUES

LIMIT VALUES CHART

Description Limit value (mm)

Max. head deformation 0.05

Maximum camshaft out of round 0.05

Rocker arm inner diameter 12.04

Rocker arm shaft outer diameter 11.96

Rocker arm-rocker arm shaft clearance 0.08

Valve wear limit 4.96

Valve-valve guide clearance (intake) 0.08

Valve-valve guide clearance (exhaust) 0.08

Thickness on seal side - intake valve 2.2

Thickness on seal side - exhaust valve 2.5

Valve stem out of round 0.01

Width of intake valve-seat mating surface 1.3

Width of exhaust valve-seat mating surface 1.5

Bucket diameter 25.96

Bucket seat diameter on head 26.04

Intake spring uncompressed length 37.8

Exhaust spring uncompressed length 35.7

Valve spring max. inclination 2.5° -1.8

Cylinder barrel inner diameter 76.02/80.02

Piston outer diameter 75.94/79.94

Piston pin bore inner diameter 16.02 / 17.02

First piston ring end clearance 0.45

Con-rod small end inner diameter 16.04 / 17.04

Clutch plates deformation 0.2

Clutch pack limit value 34

Clutch spring length 45.1

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APRILIA MXV 450 - Owner's Manual Page 30