This engine, while it works great as originally intended, hasn't worked out as well for a converted model engine.

The ports are small and the displacement to weight ratio is not as good as some of the bigger engines. It's more of a 13-6 at 7,000 rpm motor.

The Homelites, Ryobi, McCulloch weed whacker work better.

Any more, the Poulan & Homelite small chain saws have been popular.

Enjoy,

Jim