Outboard Madness

Outboard Madness Marine & Automotive mechanic. I strive for greatness! I have a passion for working on outboard engines, old and new. They speak for themselves. πŸ˜‰πŸ‘πŸ½
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I document all of the work that I do, on this page. Check out my ratings, reviews, and recommendations. I graduated top of my class at Contra Costa College studying in automotive science & technology/mechanical engineering, automotive electric/hybrid motors & electrical systems & software, automotive body/structure damage & repair, damage report writing, metal & other materials modifications/fabri

cation, automotive smog & emissions systems, automotive AC/heat systems, and automotive preparation & painting; with an accumulative GPA of 3.963 over the course of 4yrs. I was born and raised in a mechanic family with a family owned business in Napa, Ca. I have many years of mechanical experience. I love finding and fixing problems on almost anything with any motor, especially outboard motors.

06/05/2026

I haven't used my Yamaha Big Bear 400cc 4x4 quad in over a year. Started up 2nd pull (it needs a new battery). Drove it around the property for a bit and had some fun. I need to use it more often. Loving my new Oakley Vandguard glasses! πŸ˜πŸ‘πŸ½
Outboard Madness

The best analogy that I've heard in a long time! 🀣πŸ’ͺ🏽Thanks again, Chris! πŸ˜‡πŸ™πŸ½
06/05/2026

The best analogy that I've heard in a long time! 🀣πŸ’ͺ🏽

Thanks again, Chris! πŸ˜‡πŸ™πŸ½

I assembled this new Mercury jet pump assembly today. I need to order a water pump kit with housing, a shift cable from ...
06/05/2026

I assembled this new Mercury jet pump assembly today. I need to order a water pump kit with housing, a shift cable from the jet pump to the tiller handle, and some other random hardware. This will be going on that 2025 Mercury 150hp with tiller.

A few pictures from today on that 2004 Mercury (Yamaha) 115hp EFI 4-stroke. I didn't take many pictures because I was ta...
06/05/2026

A few pictures from today on that 2004 Mercury (Yamaha) 115hp EFI 4-stroke. I didn't take many pictures because I was taking videos with my new Oakley Vandguard glasses. The gearcase passed the pressure test & vacuum test. This one is good. I'm gonna order & install a new water pump kit, new gear oil, put everything back together, and test run the engine.

Stay tuned.... πŸ€™πŸ½

06/05/2026

How to pressure test a gearcase on a 2004 Mercury (Yamaha) 115hp EFI 4-stroke. After letting it sit for 11min with 10inHg negative vacuum. It passed the vacuum test! This gearcase is good! Video 6 of 6. Using my new Oakley Vandguard glasses.
Outboard Madness

06/05/2026

How to pressure test a gearcase on a 2004 Mercury (Yamaha) 115hp EFI 4-stroke. I put 10psi in the gearcase for 12min in this video. It didn't drop any pressure for 12min! It passed the pressure test! Video 5 of 6. Using my new Oakley Vandguard glasses.
Outboard Madness

06/05/2026

How to pressure test a gearcase on a 2004 Mercury (Yamaha) 115hp EFI 4-stroke. I sprayed soapy water around the prop shaft, driveshaft, and shift rod. Then I applied 10psi into the gearcase. No bubbles coming out from any of the seals! Video 4 of 6. Using my new Oakley Vandguard glasses.
Outboard Madness

06/05/2026

How to pressure test a gearcase on a 2004 Mercury (Yamaha) 115hp EFI 4-stroke. I removed the water pump assembly in this video. Video 3 of 6. Using my new Oakley Vandguard glasses.
Outboard Madness

06/05/2026

How to pressure test a gearcase on a 2004 Mercury (Yamaha) 115hp EFI 4-stroke. I removed the lower unit in this video. Video 2 of 6. Using my new Oakley Vandguard glasses.
Outboard Madness

Address

I-5 Rite Off Of Exit 148 (call/text For Exact Address)
Oakland, OR
97462

Opening Hours

Monday 9am - 6pm
Tuesday 9am - 6pm
Wednesday 9am - 6pm
Thursday 9am - 6pm
Friday 9am - 6pm
Saturday 9am - 11am

Telephone

+17073424072

Website

https://www.tiktok.com/@outboardmadness?_r=1&_t=ZP-93HH

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