I guess this could well explain Ivo's recent drama with his Honda CB500:
Honda recalls CB500 motorcycles over oil leak
http://motorbikewriter.com/honda-recalls-cb500-motorcycles-oil-leak/
The recall notice says that due to “an incorrect procedure during manufacture” of the rocker arm shaft sealing bolt, it may come loose causing oil to leak from the CB500’s engine. “If the oil leak is undetected or unrepaired, loss of engine oil could cause engine failure or seizure,” the recall notice says.
Owners of all Thai-made CB500 models are being asked to contact their Honda dealer to arrange for a bike inspection and the bolt replaced “as soon as possible”.
The bikes affected are:
CBR500RA – MLHPC44U0D5000001 TO MLHPC44UXD5000829
CBR500R – MLHPC44U0D5000189 TO MLHPC44U9D5000773
CB500F – MLHPC44U2D5000012 TO MLHPC45U3D5000248
Honda recalls CB500 motorcycles over oil leak
http://motorbikewriter.com/honda-recalls-cb500-motorcycles-oil-leak/
The recall notice says that due to “an incorrect procedure during manufacture” of the rocker arm shaft sealing bolt, it may come loose causing oil to leak from the CB500’s engine. “If the oil leak is undetected or unrepaired, loss of engine oil could cause engine failure or seizure,” the recall notice says.
Owners of all Thai-made CB500 models are being asked to contact their Honda dealer to arrange for a bike inspection and the bolt replaced “as soon as possible”.
The bikes affected are:
CBR500RA – MLHPC44U0D5000001 TO MLHPC44UXD5000829
CBR500R – MLHPC44U0D5000189 TO MLHPC44U9D5000773
CB500F – MLHPC44U2D5000012 TO MLHPC45U3D5000248