Hey all,
Thought this might be of interest, (see photo's) a bit historical as these things are wayyyy obsolete. They are a Aussie made Kirby Tecumseh engine STD 4.2HP & 3,600 RPM modified 12+HP & 8,000 + RPM. Bore 2.500" Stroke 1.770" their down fall is the fact the cranks are a bit dodgy in...