RE: Anyone converted 4-cycle gas string trimmer?
Honda GX25, Shindaiwa 25 and 34, Briggs and Stratton 34...All ran about the same, around 7500 with an 18-6 Mejzlik..The Shindaiwa 34 turned 8000 with a larger carb...
Stihl makes a 64.9 cc backpack blower four cycle, 7200 with a 22-10 and 6400 with a 24-8..
There are pages about four cycle weed trimmers, do a search...