Yamaha Power Loss Then Stall
Took Dad's Dory out today. Fitted with 2 Yamaha 25 2 Stroke Outboards. Both engines started first time but one was running a bit rough and stalling on idle from cold, fair enough, boat hasn't been used for a month. Both engines ran well for the trip, on the way back in a weird thing happened a couple of times. When throttling down from about 4000 - 2500 revs the engine that had a bit of a rough idle would lose all power then stall. First time it happened, it restarted first time. Second time it happened, it took at least 15 turns and lots of choke.