The weight of a 1988 Yamaha 40 HP outboard motor depends on its specific model and configuration. Yamaha produced various versions of the 40 HP outboard during that period, including two-stroke engines with options for different features like manual or electric start, tiller or remote steering, and long or short shafts. On average, a 1988 Yamaha 40 HP outboard weighs between 150 to 180 pounds (68 to 82 kilograms).
Factors Influencing Weight
The exact weight of the motor can vary based on:
- Starter Type
- Manual Start: Models with manual start tend to weigh slightly less since they lack the additional components of an electric starting system.
- Electric Start: Models with electric start include a starter motor and battery cables, adding some weight.
- Steering Configuration
- Tiller Steering: Typically lighter because the control system is integrated directly on the engine.
- Remote Steering: Slightly heavier due to the inclusion of components needed for remote operation.
- Shaft Length
- Short Shaft (15 inches): Lighter, designed for smaller boats.
- Long Shaft (20 inches): Heavier, suitable for boats requiring a longer transom height.
Approximate Weights by Model
- Manual Start with Tiller Steering: ~150-160 lbs.
- Electric Start with Remote Steering: ~170-180 lbs.
Why Does Weight Matter?
Knowing the weight of your outboard is important for several reasons:
- Boat Balance: Ensures proper distribution of weight on the transom.
- Transport: Helps in planning for storage or mounting on a boat.
- Performance: A heavier engine may impact the speed and fuel efficiency of smaller boats.
A 1988 Yamaha 40 HP outboard weighs approximately 150 to 180 pounds, depending on the model’s features. If you’re looking to confirm the exact weight of your specific model, you can check the owner’s manual or refer to Yamaha’s specifications for that year. Properly understanding the weight ensures optimal performance and safety for your boat.