I am going to be converting a Mac 2815, gas, 2 stroke weedie into an aircraft engine.
The plan is to do a step by step walk through to show those that my be daunted by such an endeavor that it isn't that hard to do.

I plan on using much of the original equipment as a baseline and substituting aftermarket components to show possible advancements in reliability and power output.

In addition, I will attempt to do some mapping and porting of the engine to "clean it up" for added efficiency and again, power.

The beginning:
The neighbor across the street was tossing out a weedie and leaf blower. Of course I walked the dog over that way to get a better look. Within moments both were in my garage.

The Mac would not run past idle so I took the ZAMA carb apart to see if I could find the problem. There were some small bits of debris but nothing I saw would indicate a clog. I blew out the high and low speed jets, put it back together, and stuck it back on the engine. A few prime pumps later I had it up and running. The top end was lean so a little tweaking brought it up just right. It ran so well I hated to tear into it.

Below are before and after pics of the initial deconstruction.

Note that the only tools I used are a pair of needle nose pliers and a T25 Torx.

I don't have my workshop set up so the going is going to be slow. Bear with me please.