Recent content by jvbram

A side valve engine is a four stroke

I run a 1950 49cc Mobylette with 12.5 to 1 ratio. No smoke with Stihl 2 stroke oil. So I think the problem maybe engine wear, piston rings, valve guides etc

Thanks Jetronic and Ed, It's a 4/3 but the cap has a deep reach under it would hold too much oil. Let alone 4 caps. The tablespoon per gallon sounds about right. I'll try it Jack

I have a 1960 Ransomes tractor mower that uses a JAP side valve engine. On the petrol tank cap is written "One gallon of petrol four measures of oil". Is this normal ? If so, I was thinking of using modern smokeless 2 stroke oil. Is a measure a pump from an oil can or maybe an ounce?