Join Date: Jan 2019
Year/Make/Model: 2001 Vulcan 800
OK, so let's assume you're running stock jets in a clean, working carb with open aftermarket pipes and an unknown spring in your mixture screw. The easiest place to start is to back it out 1/2 turn and test ride it. (Trying to diagnose anything mixture related by going in 1/4 turns, you'll go mad. That's only good for fine tuning later)
How does your air filter look like BTW? Stock or K&N? And how old is your petcock? These things can and will leak without you noticing and throw off your mixture, too. Our ethanol-y fuels chew up the older rubber bits just like they do in the carbs.
Floorboards are wear items. Scooterized, 52 pilot, 170 main and 3.25 turns out. 18/40 sprockets.