Yamaha Jetboat | Engine Sound Insulation Install

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I FINALLY got around to installing sound insulation in my boat. Check out how I did it, and if it was worth it!
Thanks to ‪@SmoknJaysGarage‬ for his data for the sound levels!
Here's what I used: (amazon affiliate links)
The Insulating Foam:
tinyurl.com/4n6smy9b
West System G-Flex Epoxy:
amzn.to/4dHPurl
Hanger Pins:
amzn.to/4bJ78t2
Heavy Duty Scissors:
amzn.to/3ym5COR
Mylar Tape:
amzn.to/3K32s5r
3M Super 77 Adhesive Spray
amzn.to/4akmZNq
Sound Meter:
amzn.to/4akmZNq
-----------------Chapters-----------------
00:00 Intro
00:36 The Science of Sound
01:37 Remove the Old Foam & Prep the New
03:32 Project Update, Tips and Fixes
05:35 Adding More Foam
06:48 Testing
08:24 Results
09:14 Outro
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Marine, Yamaha, Jet Boat, Jetboat, Waverunner, 1.8L HO, SX AR FSH, 190, 195, 210, 240, 250, Noise, Engine, Sound, Damping, Kilmatt, Killmat, Dynamat, Dynomat, Loud, Foam, Soundproof, Soundproofing

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27 июл 2024

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Комментарии : 13

@matthewnewman2982 2 месяца назад

Good job Mike…I’ve been following you, Capt Leon & Smokin J since my purchase of my 2021 195S. Many great ideas. For sound deadening, I used Kilmat 50mil squares on the inside of the engine cover to see how well it did. Definitely worth the effort since it lowered the reverberation of that cover better than the stock, whimpy foam. Apply it on a warm sunny day and it stick nicely. I’ll be adding more to other areas of the engine bay as well as the gas tank cover (as you pointed out) since I hadn’t thought of it as a source of vibration. Keep up the good work all you Yamaha peeps. I’ll be on Barnegat Bay enjoying the fruits of your labor.

@boatingpropless 2 месяца назад

Thanks Matt! We’re just happy to give back to the community! The Kilmat definitely works too. I wanted to try something that was a bit “extra”. This thing is so dang loud lol

@dcouwlier 2 месяца назад

I bought a 2023 275 sdx. Twin supercharged and it was loud as hell. I did the killmat in the engine bay within a couple of weeks after delivery last year. And it was so cheap I had enough to do under the seats. That Helped make the 10” stock sub stop vibrating the heck out of the fiberglass too. I still Have left over killmat. I’ll Be doing more soon.

@SmoknJaysGarage 2 месяца назад

Nice job! I noticed that the foam you removed from the engine hatch was substantially thinner than the foam on mine. I like how you fastened it on rather than just glueing. Looks good!!

@boatingpropless 2 месяца назад

Thanks! And thanks again for your help!! 👍🏻