Its only a 5 minute job to remove the rubber plug and give each of the 2 screws a turn or two counter clockwise to see if.
Yamaha jet boat throttle friction adjustment. Push the neutral button in on the side of the handleto move the throttle handle forward for checking. Surely there must be and adjustment on the darn thing but I cant find it. A 14 turn of the allen screw on the starboard side seems to have it working right.
Truly multi-function it control features include throttle throttle friction control shift lever key switch stop switch and a Power Trim Tilt switch. Loosen it too far and the throttle wont stay where you have it set -- in other words it will creep back toward slowneutral. Be careful when removing the throttle assembly cover screws and mounting screws.
Throttle friction is exactly what it means. Yamaha 704 throttle friction adjustment Remove the top cover of your control. Has the professional knowledge and Using a diagnostic tachometer adjust experience to do so.
2 is what you are popping off. 2 phillips to remove the top plate 3 Alan Bit to remove the throttle assembly and 3 Phillips while holding the throttle to adjust the port throttle. Most adjusting should be engine and warm it up for one or two left to a Yamaha Jet Boat dealer who minutes.
Adjust until the tension feels similar to the left throttle lever. I do not know what model number the control box is. It mounts on the side of my console and inside the console is a fairly large sort of coffin-shaped control box.
You can lay a towel doubled up on the thickness on the deck so you can lay the control assy. Turning it in increases the friction. The key switches and alarms are not contained on the control.