Regular engine maintenance and tuning to get better mileage is essential.
This will ensure your boat runs better and has fewer emissions.
Engines should be serviced every year or 100hrs (very important – refer to your service manual).
Also monitor the following; air intake (could save you up to 20% of fuel costs), exhaust smoke, engine oil level, coolant level, bilge for oil (or water and fuel) and the condition of the batteries.
