APRILIA SCARABEO 500 2008 Service Station Manual page 206

Engine
- Check that the crankshaft cone, the tab fitting, the oil seal flow, the knurling and the threaded tabs are
in good working order.
- In case of failure, replace the crankshaft.
NOTE
CRANKCASE BEARINGS ARE NOT GRINDABLE.
The connecting rod cannot be replaced. To check the connecting rod small end diameter, see the
«Thermal group and Timing system» chapter.
- When cleaning the crankshaft, be very careful that no impurities get in through the shaft lubrication
hole.
NOTE
SHOULD A CRANKSHAFT CONSISTING OF TWO HALF-SHAFTS OF DIFFERENT CATEGORIES
NEED REPLACING, REPLACE BOTH CRANKCASE HALVES AS WELL, COUPLING THE TWO
COMPONENTS (SHAFT AND CRANKCASE) WITH THE SAME CATEGORY.
- To check the gearing of the crankshaft, see the
«Thermal group and Timing system» chapter.
See also
Cylinder assy. and timing system
Inspecting the crankcase halves
- Before checking the crankcase halves, thorough-
ly clean all the surfaces and oil pipes.
- For the transmission-side crankcase half, special
attention should be given to the bushings, the cool-
ing jet on the transmission side (see figure) and
the lubrication duct.
ENG - 206
SCARABEO 500