1983 Yamaha 30EN Outboards Service Manual, Page 147Get this manual
REMOTE CONTROL BOX Operation 1Forward and reverse To shift into forward, turn the control lever to "F" until it stops once (about 30), and to shift into reverse, turn to "R"When the control lever is turned passed these positions the throttle begins to open2Free accelerator lever Place the control lever in Neutral and tu(n the free accelerator lever upward so that the throttle can be opened, without shifting into any gear