Haswing Osapian W20 (50735)
Haswing Osapian 20lbs Kayak Trolling Motor User Manual
Brand: Haswing | Model: Osapian W20 (50735)
Introduction
This manual provides detailed instructions for the safe and effective operation, installation, and maintenance of your Haswing Osapian W20 20lbs Kayak Trolling Motor. Please read this manual thoroughly before using the product.
The Haswing Osapian W20 is a transom mount trolling motor designed for kayak use, offering 20 lbs of thrust with a 12-volt motor and a 20-inch shaft. It features a two-blade propeller and a battery charge level indicator.

Image: The Haswing Osapian W20 trolling motor, showcasing its full assembly including the control head, shaft, mounting bracket, and propeller.
Product Features
- Forward (2 Speed)/Reverse Switch
- LED Battery Level Indicator
- Angle-Adjustable Steering Handle
- Adjustable Depth Collar
- Level Lock Mounting Bracket
- Mounting Point
- Two Blade Propeller
Setup and Installation
Unpacking
Carefully remove all components from the packaging. Verify that all parts listed in the product features are present and undamaged.
Mounting the Motor
The Osapian W20 is designed for transom mounting. Secure the Level Lock Mounting Bracket to the transom of your kayak. Ensure the mounting point is stable and can support the motor's weight and thrust. Tighten the mounting screws firmly to prevent movement during operation.

Image: The Haswing Osapian W20 trolling motor securely mounted to the stern of a kayak, demonstrating the transom mount bracket in use.
Adjust the depth of the propeller using the Adjustable Depth Collar. The propeller should be submerged sufficiently to avoid cavitation but not so deep as to hit obstacles.

Image: A detailed view of the two-blade propeller and the lower unit of the motor, showing its design for efficient propulsion.
Battery Connection
Connect the motor's power cables to a 12-volt deep cycle marine battery. Ensure correct polarity: red cable to the positive (+) terminal and black cable to the negative (-) terminal. Secure connections to prevent accidental disconnection or short circuits.
Operating Instructions
Powering On
Once connected to the battery, the LED Battery Level Indicator will illuminate, showing the approximate charge level of your battery.
Speed and Direction Control
The motor features a Forward (2 Speed)/Reverse Switch. Use this switch to select between two forward speeds or reverse.

Image: A close-up of the motor's control head, highlighting the "Speed" switch with settings 1 and 2, and the "FOR Trolling" switch for forward and reverse.
Steer the kayak by rotating the Angle-Adjustable Steering Handle. The handle can be adjusted for comfortable operation.

Image: A person seated in a kayak, demonstrating the use of the Haswing Osapian W20 trolling motor, with the steering handle positioned for easy access.
Maintenance
After Each Use
After each use, especially in saltwater, rinse the motor thoroughly with fresh water to remove salt, dirt, and debris.
Inspect the propeller for any fishing line, weeds, or other obstructions. Remove any entanglement immediately to prevent damage to the motor shaft seal.
Periodic Checks
Regularly check all electrical connections for corrosion. Clean terminals with a wire brush if necessary and apply a marine-grade anti-corrosion spray.
Inspect the propeller for nicks, cracks, or bends. A damaged propeller can reduce efficiency and cause vibration. Replace if necessary.
Ensure all mounting hardware remains tight.
Troubleshooting
Motor Not Running
- Check Battery Connection: Ensure cables are securely connected to the battery terminals and polarity is correct.
- Check Battery Charge: Verify the battery has sufficient charge using the LED indicator or a voltmeter. Recharge if low.
- Check Switches: Ensure the speed/direction switch is engaged.
Reduced Thrust or Excessive Vibration
- Propeller Obstruction: Inspect the propeller for weeds, fishing line, or debris. Clear any obstructions.
- Damaged Propeller: Check for bent or chipped propeller blades. Replace if damaged.
- Low Battery: A low battery can result in reduced performance.
LED Battery Indicator Not Working
- Check Connections: As noted in a customer review, sometimes internal connections can be loose. If comfortable, inspect wiring within the control head. Otherwise, contact support.
Specifications
| Feature | Detail |
|---|---|
| Brand | Haswing |
| Model | Osapian W20 (50735) |
| Thrust | 20 lbs |
| Voltage | 12 Volts |
| Shaft Length | 20 inches |
| Propeller | 2 blades |
| Mounting Type | Transom Mount |
| Color | Black |
| Material | Aluminum |
| Item Weight | 4 kg |
| Operation Mode | Manual |
| Recommended Use | For Kayaking |
Warranty and Support
For warranty information or technical support, please refer to the original product packaging or contact Haswing customer service directly. Keep your purchase receipt as proof of purchase.
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