RE: Unerstanding Purpose built Verses Conversion
Greg ENYA sleeved the carb on the 25CXD conversion ; Davis suggested a quick fix use a air intake filter on the carb and just add a thin plastic disc'with a hole in it to reduce the air intake of course not running the carb wide open around 75% or so works too on MY Irvine 53s I run 70 -75%
open and run fine either way is does show the reduced fuel consumption of diesel martin