I concur! I never fit the filter. I change the oil every year even if I've only done 1000 miles. Ron

email (option): ronpier@talk21.com

exactly.
I also attached a relatively large magnet that I disassembled from a speaker - to the bottom of the oil sump, on the steel cover.

email (option): michasteinmann@gmail.com

End fed crank
Roller big end
No real need for any oil filter other than the strainer over the outlet tube in the tank to protect the oil pump pressure side & the strainer in the sump to protect the oil pump scavenge side
Everything else will get enough oil via splash to keep it happy.
Thousands of stationary engines out there with no oil filter or pump for that matter , total splash lube .

email (option): bsansw1@tpg.com.au