You could switch to thicker oil
Maybe some of that 70 weight aircraft oil that old Harley dudes use?
You’d be surprised how many owners simply use a higher viscosity grade oil just to quieten the motor down.
Thii ok ugh choosing the right viscosity is important. There was a post on face-ache the other month where a fellow was stating he used something like 5-30. He was also one of those guys that was a mechanic for Aston Martini so knew everything about oil... or at least as much as what the autodata could tell him.
The last few years i raced my old beezer i ran R30 which is 30 weight, it was excellent oil as far as wear was concerned.
Despite everyone saying it's too light for 40+ deg ambient i never had any problems with oil pressure or smoking. It flows
great from cold which is really important. BUT then i never had any problems with pump petrol either whereas some say
you must run methanol here.
The main noticeable difference between the oil i used previously and the R was..........
IT SMELLS LOVELY.