theyare all dirty in a tub….when the incoming load of fuel oil pushes out the exhaust on the up stroke both in and out ports are open so fuel oil bypasses the cyl and ends up outside in the exaust….and the water in the tub.
conclusion…. don’t worry about it 🙂 that is why modern EFI engines consume much less fuel since all the fuel is burnt up before leaving the cylinders . oil is mostly used outside the cylinders being routed (pumped) directly in the crankcase for lubrification. my 75 ETEC burn .6l/hr trolling ! next to nothing compared to my 9.5hp from the 60s
Joining AOMCI has priviledges 🙂
