Engine Loses Power When Water Rough

Pricestavern · 07-13-2015, 11:22 AM

We just started having an issue with our Yamaha 150hp 2-stroke on Saturday. The engine will lose power (not stall) abruptly when we hit a few decent sized waves. Once we're over the waves, the engine runs fine again. It occurs only for a second or so and seems to happen at mid-to-high rpm. If putt-ing along we haven't had the issue.

Definitely feels like the engine must not be getting gas. I'd suspect a float issue, but the engine is fuel-injected. Thoughts?

07-13-2015, 11:22 AM	#1
Pricestavern Senior Member Join Date: Oct 2006 Location: Valencia, Spain (formerly Rattlesnake Isle) Posts: 388 Thanks: 135 Thanked 142 Times in 82 Posts	Engine Loses Power When Water Rough We just started having an issue with our Yamaha 150hp 2-stroke on Saturday. The engine will lose power (not stall) abruptly when we hit a few decent sized waves. Once we're over the waves, the engine runs fine again. It occurs only for a second or so and seems to happen at mid-to-high rpm. If putt-ing along we haven't had the issue. Definitely feels like the engine must not be getting gas. I'd suspect a float issue, but the engine is fuel-injected. Thoughts?

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