Hello, possibly a simple question, but im a bit new to BSA M20. When refilling the chaincase will oil, how much do you put in or how do you know when its fill to the right level ? The manual I have doesn’t specify and an amount and just says ‘refill’ any thoughts - thanks
Assuming you have the correct cover on bike there is a hexagon headed level plug just below the foot peg mounting. Remove that and fill with oil until it just starts to run out. Not sure quantity but it isn't much, maybe 200mls or bit more.
