1983 Yamaha 30EN Outboards Service Manual, Page 148Get this manual
6 Remove the circlip from the throttle friction screw, and remove the throttle friction band and throttle friction screw
Using slotted-head screwdriver, remove the bushing, cam roller, and washer from the pin on the end of the shift arm4Loosen the nuts (Main switch choke switch, and Emergency stop switch) and screws (Neutral switch) on the control box, and remove the switches and buzzer
1Circlip Throttle friction band 3Throttle frict ion screwRemove the neutral switch operation arm from the gear