This creates a light compact powerful outboard for deck boats and deep-V hulls navigating shallow rocky rivers.

Yamaha jet boat noise. The noise sounds like a valve ticking tick tick tick not a knock. Mar 28 2019. At wide open throttle the little Yamaha gets just 18 mpg.

JRobChicago dont get worried about the noise it will only be apparent at WOT and when youre doing 40mph across the water you wont care about it at all. Yamaha has made a combination of engineering changes along with the addition of large amounts of sound deadening materials and significantly reduced the overall noise in the 240 Series. You have purchased a trouble free boat that should give you years of enjoyment.

- Engines are running at 7000 rpm cruise noise. As the boat climbs on plane the engine noise revs up into the 70s. Compatible with mechanical controls our Multi-Function Tiller Handle analog gauges and Command Link 354 pounds including jet pump assembly Fits 25-inch transom boats.

DO NOT give this a second thought. Heres the builders issue. Unfortunately thats not necessarily the case with Jet boats.

The jet also runs at much higher rpm and this higher-frequency sound is more irritating to the human brain. The efficient Sea Ray on the other hand delivers 35 mpg. Yamaha successfully addresses the irritating noise issue that had afflicted previous models with a comprehensive package of updates.

With most boats it isnt necessary to have ear protection while youre out on the water. 86 db to 10000 rpm wot 98 db. The higher the dB the less amount of time it takes for hearing damage to occur.