MV Agusta 2008 F4 312RR 1078 Workshop Manual page 53

Valve-guide valve coupling
Coupling play at assembly must be:
0,01 ÷ 0,03 mm inlet
0,02 ÷ 0,04 mm exhaust
The maximum coupling limit permitted is even to
0,08 mm inlet
0,10 mm exhaust
If a major play should result, substitute valve and valve
guide.
Valve springs
Check to be sure that the free value of length is not
inferior to the suggested limit and in such case substi-
tute the springs:
Exhaust valve Internal spring L = 33,8 mm
Service limit 33,3 mm
External spring L = 37,9 mm
Service limit: 37,4 mm
Inlet valves Internal spring L = 35,28 mm
Service limit: 34,78 mm
External spring L = 39,04 mm
Service limit: 38,54 mm
Valve reassembly
A)Carefully degrease the guide
B)Insert the inferior basement disk (6) and be sure that
it is in beat.
C)Assembly the rubber holdings, always new, on the
valve guide using tool n° 800095581;
D)Sprinkle the valve stem with oil.
Cylinder kit
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800095581
C