Random engine shutoffs, but immediately restarts. 2013 Yamaha F300xca. 170hrs

[divenman]

Cant figure this one out. New batteries, tight cable connections, fresh service. Kill switch ok, ignition switch seems to function smoothly. No loss of power. Random shutoffs at any RPM. Occurs 1-2 times per day. Had fuel injectors serviced when I purchased boat 3 weeks ago. Smooth running engine. No alarms, or warning lights. Stable water temp with P water. Cant find a blog or info on this one any ideas?

 

[Thirsty Turtle]

Have you checked the fuel line..I was loosing power on top end and it ended up being the inner liner on the fuel line. Line looked good but when I pulled it apart the inner liner was separated and it would suck down restricting fuel flow. Also may want to check water separator.

 

[99yam40]

monitoring fuel pressures when it shuts off may give you an idea if lift pump and /or VST pump pressure is what is causing the motor to shut down.
restriction, sucking air, or electric pump shutting down could be things to look for