I just purchased a 1981 250r three wheeler. I have some money and am wanting to but some after market parts or hop ups for it. It has already been bored .03 over and has been port and polished. what are some parts or hop ups that would be great for a gain in horsepower.

 

Parts are hard to find for the 81-84 R's. Check Ebay. I'm not sure if anyone still makes pipes for them. If anyone does it's probably DG. Get to know 3wheeler.org and 3wheelerworld.com, they will ahve a lot more technical knowledge.