Jay's Mobile Marine LLC

Jay's Mobile Marine LLC On-site marine repair. Maintenance, electronics, rigging, repower, audio, winterization, shrink wrap, and more. Yamaha certified.

Servicing NH Lakes Region, Silver Lake, Conway, Ossipee, NH Seacoast, Newburyport, and Western Maine.

I am happy to announce that I am now an authorized MinnKota trolling motors and shallow water anchors as well as Humminb...
04/28/2026

I am happy to announce that I am now an authorized MinnKota trolling motors and shallow water anchors as well as Humminbird GPS and fish finder dealer! I can get you everything from a replacement part, to a full trolling motor setup, lithium batteries, wiring, and a huge list of other awesome products MinnKota and Humminbird supply. Here’s a link to their website if you’re curious about spotlocking onto those bass beds, or wirelessly drawing a trolling line for salmon. Both MinnKota and Humminbird are running some great spring time deals. Thanks! https://minnkota.johnsonoutdoors.com/us

04/23/2026

Oil injection delete. A very good idea on any old 2 stroke jetski or outboard. At some point, either the oil pump fails, an oil line pops off, or the oil lines becomes brittle and crack, thus, leaving your engine running WIDE OPEN with no oil! Next you know, POP! You now have a new lawn decoration. We don’t like lawn decorations, we like our boats out on the water. Call me for some help with this issue.

Spring is in the air! And water? Finished up this 2019 Yamaha 242XE Jetboat right in time for the season. I installed th...
04/17/2026

Spring is in the air! And water? Finished up this 2019 Yamaha 242XE Jetboat right in time for the season. I installed the factory ballast pump systems, fixed up a misting system to stay cool on hot days, performed annual service on both engines, replaced a few speakers, a broken wash down hose, new steering cable and alignment, and a few other smaller items. Spring is getting busy for me so give me a call or text 603-481-6751 to get on the schedule for a hassle free boating experience! Thanks!

04/03/2026

When I test the most simple electronic device

04/02/2026

This is madness

03/25/2026

It’s probably my fault

02/19/2026

If your Jetboat all of a sudden lacks power, this generally is the reason why. Maybe you have twin engines and notice one engine hits max rpm and the other doesn’t. Every year before you drop your boat in the water the wear ring and impeller should be inspected. When you fire up, if you hear a scraping, high pitch clang sound, this is the problem. On top of that, if you hear a low grumble and rumble, that could be your jet pump housing bearing. Both can be catastrophic for your engines health. Always do your annual maintenance and grease up those jet pump housings!

Very excited about my new Evinrude ETEC diagnostic equipment! I just got my laptop all set up so if you have an ETEC lay...
02/07/2026

Very excited about my new Evinrude ETEC diagnostic equipment! I just got my laptop all set up so if you have an ETEC laying around giving you some issues, give me a call. This 30hp pinged an error code 91 faulty electric fuel pump. I recommend replacing the fuel pump and low pressure lift pump along with fuel filters. Run some injector cleaner through the system and it should be good to go.

Just finished up a 300hr service on a Yamaha 250 four stroke. Let me tell you, those lower units are heavy, especially w...
02/01/2026

Just finished up a 300hr service on a Yamaha 250 four stroke. Let me tell you, those lower units are heavy, especially with the extension plate. Yamaha (and every other OB manufacturer as well) recommends every 3 years or 300 hours, whichever comes first, to replace the water pump and thermostats. On top of that, annual maintenance or 100 hour service is a must. New spark plugs, fuel filter, fuel water separator, oil change with filter, gear oil, anti-corrosion spray the block and grease all fittings. This boat is being stored in my shop all winter however I still like to winterize in case we lose power. I can smell spring around the corner ! all oem parts, always!

Boats aren’t the only thing you can Shrinkwrap! A gentleman wanted his mini excavator wrapped to keep the squirrels out,...
11/22/2025

Boats aren’t the only thing you can Shrinkwrap! A gentleman wanted his mini excavator wrapped to keep the squirrels out, so I wrapped it tight around the cab making sure there was no passageways for critters to get in. Another family wanted their pool furniture, hot tub, and patio sets wrapped to keep the strong winter winds of Mount Washington from destroying their property. I have plenty of Shrinkwrap left with affordable prices to get your toys, furniture, and anything else safe from the weather this winter. Message me for details, thanks !

-Jay

Address

Silver Lake, NH
03875

Opening Hours

Monday 8am - 8pm
Tuesday 8am - 8pm
Wednesday 8am - 8pm
Thursday 8am - 8pm
Friday 8am - 8pm
Saturday 8am - 8pm

Telephone

+16034816751

Website

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