Hi folks,

Just wondered if anybody was familiar with an engine that my friend described to me over the phone.

He picked it up in a trade deal and doesn't know much about it.

He said it's an O.S Max .61 with a gold head and (special edition) stamped on the mounting flange.

It has a side exhaust.

The "61" is marked on the exhaust port side and "(special edition)" is marked on the mounting flange on the other side along with O.S MAX on the casing.

We think it's similar to the SF series. It's an ABC motor.

The carburetor has the Low speed mixture screw on the same side as the High speed needle and it (low speed screw) has an elongated head held in place with a flat metal U clamp.

Any help is appreciated[8D]