The main components you will need for the conversion are a belt drive kit, which includes the belt, pulleys, and mounting hardware, and a new rear wheel that is compatible with a belt drive. You will also need to make some modifications to the motorcycle's frame and swingarm to accommodate the new belt drive system.
The process of converting a Sportster from chain drive to belt drive is as follows:
1. Remove the chain drive system. This includes the chain, sprockets, and tensioner.
2. Install the new rear wheel. The new rear wheel must be compatible with a belt drive system and have the correct axle size and width.
3. Modify the frame and swingarm. The frame and swingarm will need to be modified to accommodate the new belt drive system. This may involve welding new mounting points for the belt drive pulleys.
4. Install the belt drive kit. The belt drive kit includes the belt, pulleys, and mounting hardware. Follow the instructions included with the kit to install the belt drive system.
5. Adjust the belt tension. The belt tension should be adjusted according to the manufacturer's specifications.
Once the conversion is complete, your 1989 Sportster will be equipped with a belt drive system. Belt drives are generally considered to be more reliable and require less maintenance than chain drives. They also provide a smoother ride and can reduce noise.
It is important to note that converting a Sportster from chain drive to belt drive is not a simple task and should be attempted by an experienced mechanic. If you are not comfortable performing this type of work, it is best to have it done by a professional.
