Find out why some outboard engines overheat and how to fix it.

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BoatTEST - On The Water Newsletter

Hello Boater

New Boat Test - Formula 360 CBR OB

Runs Hard, Handles Easily

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TESTED AT SPEED The Formula 360 Crossover Bowrider Outboard blends bowrider seating with real overnight capability, including a stand-up head and aft cabin berth. As tested with triple Mercury Verado outboards, she reached 63.7 mph and ran comfortably in the mid-40s. Walk-through access, defined cockpit zones, and joystick piloting make her easy to manage at speed and around docks.

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Nimbus T8

Small Scale, Full Walkaround

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TENDER FIRST Built as the smallest model in Nimbus’ Tender line, at 26’2”, she carries a full walkaround deck, convertible cockpit seating, and a two-person berth below. She features a stepped hull, multiple seating and sunbed conversions, and a compact cabin for two. Power is a single outboard from 200 to 300 hp, with a standard bow thruster and cruising speeds in the mid-20-knot range.

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Miami International Boat Show  --  Feb 11-15, 2026

A 4-Ring Circus of Boats, Gear, and Fun

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PLAN YOUR TRIP NOW Miami Beach plays host to three of the Miami show's four venues -- large new and used boats in Indian Creek by Collins Ave. (red arrow); the Miami Convention Center for smaller boats, gear, and accessories (green arrow); the "Pride Park" circus within a circus, featuring Nautical Venture's "Aquazone" with yacht toys, an Electric EV boat and motor Pavilion, education, food and beverages of all kinds (orange arrow); and the in-water sailboat exhibits on Jungle Island (purple arrow). 

COMPLETE SHOW INFO
DISCOUNT SHOW TICKETS

Sharrow Demos in Miami -- Feb. 11-15, 2026

Merc V10s w/Sharrow Props/Side-by-Side Test Demos

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YOU DON'T HAVE TO GO to the Miami Boat Show to experience the "Sharrow difference." Just go to the Miami Marina at 300 Alton Ave. to see what the marine world is raving about. But you will need a free reservation.  Sign-up below...

(Psst -- Sharrow also has a booth in the Convention Center Lobby).

SIDE-BY-SIDE DEMO
MERC V10 DEMO
SHARROW STORE

Pre-Owned Yacht Spotlight

2022 Azimut Atlantis 45

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SEAKEEPER STABILIZED This 2022 Azimut Atlantis 45 is powered by twin Volvo IPS 650s with under 200 engine hours and is equipped with Seakeeper stabilization, joystick control with dynamic positioning, and a bow thruster. The layout includes two staterooms, two heads, a full galley, and multiple outdoor seating and sunpad areas. Features include a hydraulic swim platform, tender garage, retractable sunroof, air-conditioned helm, and an upgraded 11 kW generator.

FULL LISTING & PRICE

Inside Boat Telemetry

Siren and Yamaha Integration

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ALWAYS CONNECTED Siren Marine has been monitoring boats remotely since 2011, sending alerts on location, bilge activity, batteries, and more. With Yamaha now integrating Siren directly into its outboard control systems, engine data like fuel levels and system anomalies can be transmitted straight to a phone or tablet. It’s a closer look at how connected boating is evolving.

EXPLORE THE SYSTEM
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Chasing a Phantom Overheat

When Cooling Vanishes

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NOT THE ENGINE A Yamaha outboard keeps tripping an overheat alarm and refusing wide-open throttle, despite sensors, impeller, and thermostat all checking out. The problem turns out not to be inside the engine at all. This walkthrough shows how engine mounting height quietly affected cooling water at speed, and why a small adjustment unlocked full RPM.

WATCH THE FULL FIX

Life is Better on a Boat 

Troy Mackenzie 20 1978 Bell Buoy

Flat summer water, mountain scenery, and a contented dog on board — Anderson Lake near D’Arcy, BC, aboard a 20' 1978 Bell Buoy

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Questions? Drop us a line: editorial@boattest.com

 

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