The drawing on the bottom of the page on the Horizon site is as close to a template as you will get. The dimesions are in inches, but the engine is metric. Even on the Zenoah site, www.zenoah.net there is no template. The manual on their site is exactly what you get when new. The G-62 is easy as the holes are spaced evenly. Just draw your own template off the dimensions.

Safe Flying!