1985 Mercury Outboard V-300 V-3.4L Shop Service Manual, Page 80Get this manual

1985 Mercury Outboard V-300 V-3.4L Shop Service Manual, Page 80

Install fuel bowl ven jet (a) I nstall idle jet (a) and id le jet plug (b) with gasket (c)
If removedin stall shutt er plate (a) onto nat of thrott le shaft with screws and lockwashers as shown
If removedposition thro ttle shu tt er as shown, then in stall plastic spacer (a)throttle retu rn spring (b) and throttle lever (c) nto end of shaft as show nSecure thrOllle le'er to shaft with scre w