This kit combo is simply worth every penny. Don't even waste time with the cheaper kits out there with their random screws, and gaskets that don't fit. Both kits have literally everything you need to do either carb, including every o-ring, gasket, springs, rubber parts, parts I don't know the name of (but could benefit from being replaced), and screws that often strip. You know when a new bowl drain screw is included, you're getting EVERYTHING you could want or need. The included parts diagram is easy to read and extremely helpful in figuring out what should go where. I have no idea what my bike ran like off the line 15+ years ago, but I bet it couldn't have been much better than it runs now that my carbs are all but brand new. As a side note, Maxair shipped it same day, and it was in my mailbox across the country in 2 days. Awesome company, thank you for offering this.