May 12, 2026 at 8:29 PM
#22541
It has a spring, and washers and a sieve in there, it is purely for the gearbox cam shaft, because there is small parts there, so easier to service it after a rebuild, this is something of a concern for engine builders or garages rebuilding a damaged engine. It’s just an overengineered engine to be fair.
So general riders are told to just focus on #2 for oil changes.