Vittorazi Motors COSMOS 300 Maintenance Manual page 190

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Measure the eccentricity of the crankshaft, the factory settings are shown in the figure.
Check that the seat of the key is undamaged.
If the above checks are not passed, replace the crankshaft.
Measure the diameter of the 2 bearing seats on the crankshaft, the table shows the factory
settings.
Dimension
8
9
Cosmos 300 – Maintenance manual – V2
Factory settings at 20° C
(mm)
16,983-16,994
16,983-16,994
190

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