DF140BGT / DF115BGT

Newly Designed Air Intake System

Advantage

• Delivers higher power output
• Increased ability to remove water from air taken into cowl
• Decrease in the air intake temperature

Direct Ignition

Integrates the ignition coils into the spark plug caps

Advantage

• Reduces the number of parts and simplifies the wiring system

• Removing the high tension cord enables the ignition to generate spark efficiently which leads to the improvement of combustion efficiency

Easy Maintenance

Designed to be easy maintenance for the benefits of the customers.

Advantage

• Easy Access Oil Filter: Can be replaced simply by removing the top cover
• Oil Spill Catcher: A tray is added around the oil filter to catch oil which comes out when exchanging the oil filter
• Oil Level Gauge: Able to use Φ15 oil changer hose

Water detecting system

• It helps to protect the engine from water in the fuel
• Using bigger fuel filter than DF140A/115A
• Optimized Fuel Filter position

Advantage

• Can avoid water in fuel
• Increased Durability & Reliability
• Easy replacement of fuel filter

High Compression Ratio

• To achieve the optimized mask, port and piston combination, the shape of parts was simulated over 1,000 combinations and then tested thoroughly with the carefully selected parts.

Advantage

• Achieved 10.6 Compression Ratio which contributes to high torque.

Offset Drive Shaft

• The engine powerhead is positioned closer to the front, moving the outboard’s center of gravity forward.

Advantage

• Less vibration
• More compact
• Stable steering performance

2-Stage Gear Reduction

• This system which incorporates the Offset Driveshaft features a first stage reduction between the crankshaft and drive shaft, and a second stage reduction inside the gear case.

Advantage

• High Torque even with big loads.
• Powerful enough to rotate larger propeller

Quiet Operation

• Intake noise is suppressed with a resonator, which makes the noise from the outboard quieter.

Advantage

• Less noise, making boating more pleasant.

Alternator Output

• Newly designed ventilation which cools the coils better.

Advantage

• 3Amp better alternator output at idle speed range that is roughly equivalent to the necessary output of SMD12/SMD16.

Lean Burn Control System

• The Lean Burn Control System supplies the appropriate amount of fuel and air mixture depending on the navigation conditions.

Advantage

• Significant improvement in fuel economy in all speed ranges especially at cruising speed.
• Fuel is saved and gasoline costs are cut thanks to improved fuel economy.