Does anyone have the carb sizes (venturi size in mm) for the 9.9 and 15 hp Johnson/Evinrude? I am looking at a 1980 9.9 that the owner said the previous owner said (?) that it had been modded to a 15 hp with the carb. I also understand that the exhaust tubes need to be changed for this mod -...
Does anyone know what the cranking compression should be for a 1980 15 hp/E15RCSD motor be?
This motor has not been run for a few years and the throttle shaft appears to be seized and won't rotate. A few small hole were drilled in the housing above the shaft and WD40'd a few times but it won't...
