21-09-21, 07:44 PM
(20-09-21, 08:14 PM)unfazed link Wrote: New sight glass is your best option and is about £20. Part number was 4h7-15361-00, but it has been superseded by part number 2h7-15361-00.Don't know of any effective way of cleaning it or anyway of removing it with damaging it.
In the dim and distant past, I've used cotton buds on some bikes to clean the glass.