Home › Forum › Ask A Member › Johnson SD-15 with Pressurized with Integral Tank? › Re: Johnson SD-15 with Pressurized with Integral Tank?
March 9, 2017 at 7:19 pm
#54052
The low speed carburetor Venturi ran off a small rotary valve in the center main bearing. They tapped into the back side to get the pressure. . . 😆

