Technology

Engine Technology

When you purchase a Honda product you purchase something far more than the sum of its parts. That’s because each Honda product is designed and engineered to be the leader in its field.

Put simply, we are passionate about improving on perfection and creating the benchmarks that others try to emulate. That’s why every Honda product is built to be the best and to deliver optimum performance, reliability and economy

VTEC™

VTEC™ delivers more power, torque and efficiency at every speed. At 5200rpm, a high-lift cam engages to pack more air into the combustion chamber to produce more power. VTEC™ works to produce a longer, flatter torque profile:the ultimate in fine-tuned performance. [VTEC: BF90 only]

BLAST™

Honda’s revolutionary Boosted Low Speed Torque (BLAST™) air/fuel ratio and ignition-timing technology was first employed in Honda’s BF75/90, released in September 2006.

BLAST™ utilises MBT – Minimum advance for Best Torque – trace control, which is based on basic engine ignition timing theory. By linking the ignition timing control of the engine to the air/fuel ratio, it sets the optimum timing via computer control.

BLAST™ traces the air/fuel ratio that results in the maximum torque for each engine revolution, while simultaneously tracing the maximum knock limit ignition timing that can be obtained using a rich air/fuel ratio in the full throttle zone, and advances the ignition timing to the limit (27°), in order to produce greater torque.

This boost in horsepower and torque at low rpm contributes to strong hole shot performance to get the hull up on plane quickly! BLAST™ ensures strong acceleration to get boats on the plane quicker!

4-Front Corrosion Protection

There’s much more than simply great cosmetic appearance behind that metallic silver finish. Each Honda engine undergoes a vigorous 4-stage coating process for protection against harsh conditions, like ultraviolet rays and extensive saltwater exposure. First, the double sealed, anodising treatment is applied to the Honda aluminium alloy base, followed by the epoxy primer undercoat, the acrylic silver metallic paint and finally the acrylic resin clear topcoat. With Honda, complete durability means applying innovation at every level.

ECOmo

The new BF40/50 incorporates Lean Burn Control technology, which allows combustion to operate on a leaner air/fuel ratio (14.7 to 1 ~ 18.0 to 1) than stoichiometric air/fuel (14.7 to 1).

The engines each utilise an O2 sensor. Together with the ECU the sensor precisely controls the air/fuel mixture for the best fuel economy at cruise setting.

The mode in which Lean Burn Control is used during cruising to achieve higher fuel economy is referred to as ECOmo (Economy Controlled Motor).

Lean Burn Feedback

Adjusts the air/fuel mix according to speed and load to maximise efficiency. Inclusion of Lean Burn Feedback offers significantly improved fuel consumption over Direct Injection two-stroke models as well as over competing four-stroke models.The completely redesigned 2007 model is even more fuel efficient than previous models. Lightest four-stroke outboard ever produced in its class!

Powerful 1.5L, SOHC , 16-valve, inline four-cylinder engine. 4-Front Corrosion Protection. A patented, ‘double-sealed’ multi-layered paint process. Sacrificial anodes and stainless steel technology, along with waterproof connectors, all enhance corrosion protection. CARB 2008 and EPA 2006 ultra-low emission compliant. Tiller steer option is available on 90hp engine.

Advanced engine technology

Every Honda outboard engine integrates the most effective systems and technologies for their power range, so you get unrivalled speed and acceleration no matter what size you use, at any rpm. Over the years, we have used our experience as the world’s largest engine manufacturer to perfect 4-stroke engines that are clean, quiet and economical. With advanced engineering, exclusive Honda technologies and our pursuit of excellence, Honda will continue to offer high quality products that set the standard in engine technology.

Reliability

With our dedication to performance and innovation, Honda delivers power with unparalleled reliability. At Honda, we build engines that can be relied on to perform day in, day out. Our deep level of experience and commitment to precision manufacturing techniques, has allowed Honda to build a reputation for consistency. The sleek design of Honda outboards reflects the superb engineering that goes into every model, which pairs proven technology with reliability for an enjoyable experience in the water.

Smooth operation

Honda outboards are designed with the consumer in mind. That is why Honda’s high horsepower outboards integrate an inverted flywheel at the base of the power head. This lowers the centre of gravity to greatly reduce vibration and provide smooth handling.

Fuel efficiency

Honda 4-stroke technology ensures low fuel consumption without compromising maximum performance. By comparison, Honda 4-stroke outboards are around 50% more fuel efficient than conventional 2-stroke models and reduces harmful exhaust emissions.

Complete security

For absolute reliability, Honda outboards come with a complete range of security features, including oil pressure and over heating alert systems. Even more importantly, junior operators will have the tools they need to head out to sea with confidence. With neutral gear or start-in-gear protection, and an emergency kill switch that attaches to the operator’s wrist, Honda increases both your confidence and theirs.