This dyno chart is a comparison between a bike equipped with dual carbs and one that has the KJS Single Carb System.
This chart is relevant for all models and sizes for both Yamaha V-Stars and Viragos.
Red dots are the KJS single carb system and Blue dots are the stock duel carbs
1A KJS had 58 ft lb of Torque @ 2,000 rpm
2A KJS had 24 Horsepower @ 2,000 rpm
1B Stock had 54 ft lb of Torque @ 2,000 rpm
2B Stock Bike had 20 Horsepower @ 2,000 rpm