johntoyomaru
New member
i have twin ad31 s port side won t rev up rpms can get 2200 rpms on the water and sluggish in the yard on hose using more fuel than other mtr some black smoke i have eliminated all filters fuel supply turbos after cooler injecters i want to swap out injection pump about to order top dead center pin and what ever other tool i need ? question , if i do this and find the problem goes with pump i can send out for rebuild who sets the injection angle ? the shop or me upon installion