Yamaha Outboards 3P Service Manual, Page 26Get this manual
p_ER_IO DI_C_S_E_R_V_IC_E 033000-0
IDlESPEED 1) Turn the pilot screw until it is lightly seated2) Turn the pilot screw outward to specifi cation
Pilot screw (turns out): 114 14
3) Start the motor, and allow it to warm up for few minutes4) Set the idlespeed to the specified level by setting the throttle stopscrewUse tachometer for checking the speed when adjusting the motor speedNOTE: _ Turning the throttle stopscrew clockwise in creases the motor speed; turning it counter clockwise decreases the motor speed
03330 1-0
Idle speed: 1.200SO