OutdoorKing Repair Forum Forums Restoring, Customising and Modifying Other Walk-Behind Rotary Mowers Atco Rotary With Vinco 2 Stroke Engine

Good morning ODK Members,

The Vinco Two Stroke engine is quite a rare one, 125cc but made more for marine application than garden implements. Massive crankshaft journals would allow this engine to idle very low but still maintain a good strong output. I have put up a lot of pics to show just how well made and designed this engine is. Not sure of a date but I believe early to mid 50’s.

The rings were quite worn but the engine still started and ran well, I have found that Victa 125 rings will fit nicely with a little work, my cylinder is .040” oversized and by removing a little off a set of standard Victa rings I had a perfect fit. The Victa rings are same thickness and width.

My donor engine has had the thread removed from the output shaft or may have been originally a marine unit, I may make up a boss to take a blade but it will probably not be cutting grass again anyway.





















Just have to make some new gaskets up and put it back together.