Britbike forum Forums Thread Like Summary - A65/A50 chaincase oil level

Hi all.
I’ve noticed that the chaincase level screw hole bears no relation at all to the recommended oil capacity of about 150cc. The hole is not obstructed, yet with 250cc of oil in the case none comes out of the level hole.
Anyone have any ideas on this?
Bike is a 1970 A50.

I've only had earlier A65s, without the overflow hole. Never had a problem using the specified 140-150cc of oil (actually prefer ATF).

Have you tried the overflow with the bike on the side stand? Just a thought...