I will be working on 1955 25 hp RD-17 this winter
Does anyone have the actual service bulletins regarding –
"Service bulletins were issued to open the quarter inch hole in the front lower motor cover to two inches and to remove the rubber elbow and the acoustical liner from the intake air silencer."
or any other service bulletins on the 1955 25 hp RD-17
Just want to make the RD 17 the best it can be
Thank you everyone.
Based on everything discussed here, the only question that remains is the compression ratio. I will wait until I can get two heads in my hands and compare them. Everything esle seems to be the same, crank size and comprssion relief aside.
Adam