Metrejean Motors

06/17/2026

Mercury/mariner decal sets
150 each shipped

06/16/2026

China 16ybs REV2,s back in stock
350 shipped.

06/16/2026

This is the 1757 .125 gauge SV3 prototype that I haven't spent much time in since it's been built, after this weekend I've seen what I needed to see (for now) with the NBL 1860 so I put the Tohatsu on the SV3 and went spend some time in it to see what it is capable of. With a worked 15 vengeance at 6800 it ran 47.1mph. Going to throw some pore pitch on it tomorrow see if I can get 50 out of it.

06/15/2026

Caught me a 🏁at the Lake Washington benefit race this weekend, always a fun time with Rowdy Creek thanks for the time and effort to put this race together and for a great cause to help Millie kate and her Family get through this tough time.

06/11/2026

Got some Mini Merc/Mini Mariner decal sets in 150$ a set shipped
Send me a message if you would like to order a set

06/05/2026

NBL #2 is finished 470lb finished weight on this 18'2"X60" .125 hull.
Now to get the Tohatsu 60 back on it and see how quick i can make it run in 660 for the Rowdy Creek race at lake Washington next weekend.

** Prototype only, not for sale**

06/02/2026

Been working on a new decal set what yall think

since yall showed that much interest i can ship these decals for 150$ fair warning these aren't the easiest decals to install lots of soapy water and patience

06/02/2026

Stop by or call 985-519-3539 if your interested in giving your 150/175 Yamaha SHO a bump of bugga shugga.
First customer to get this flash gets 40% off if you can leave your boat with me to do before and after testing ya know for Science.
Msrp 850$ for the Outboard EFI performance flash

Wake up your Yamaha V MAX SHO with proven ECU performance tuning from Outboard EFI.

Our tuning for the VF150 & VF175 2.8L delivers 225+ HP, stronger midrange torque, quicker acceleration, and improved fuel economy. Whether you’re looking for more speed, better hole shot, or all-around performance, we’ve got you covered.

🌎 Over 350 dealers worldwide and growing!
🌎 We are actively looking to expand our dealer network. If you're interested in becoming an authorized dealer, contact us today.

📞 534-356-0694
🌐 OutboardEFI.com

05/28/2026

We need some product pictures! If you're a customer of ours, comment a picture of the product you purchased and we may potentially use it on the site, I'll also get each of our twin girls Nikki and Kelsi to pick their favorite picture and those two winners will get some merch sent to them.

Working on a website, it's live but you can't make purchases yet.

www.metrejeanmotors.com

05/23/2026

I installed a Wideband O2 sensor on my 60 Tohatsu and the test results were surprising. for the ones that aren't a where what a O2 sensor does here is a explanation.

(A wideband O₂ sensor measures how much oxygen remains in the exhaust, allowing you (or the ECU) to determine the actual air‑fuel ratio (AFR) across a wide range—not just rich/lean like a narrowband sensor. It outputs a continuous 0–5V signal that corresponds to AFR or lambda, giving precise insight into combustion. This is why widebands can accurately read mixtures from very lean (20:1+) to very rich (10:1).

Raw data
Stock ECU Stock Air Box 11.9-12.4 AFR
Flashed ECU Stock Air Box 11.4-11.7 AFR
Flashed ECU Velocity Stack 11.1-11.4 AFR