Unscrewing and wrenching in new jets are pretty darn simple, once you understand the task at hand. The first step is to lose the Phillips head screws that hold the float bowls and top diaphragm covers in place and replace them with some stainless Allen head cap screws. Fast Eddy has them on the shelf. If you want to pump in more air, the easiest method is to add an inlet through the bottom of the airbox and existing filter. There is lots of info here in the archives that covers the subject. You need to check out the jetting calculator as well for a starting point for the jet change too. Add air in with more fuel and a less restrictive flowing exhaust and you will find torque and ponies available for passing two up around that school bus in your way. BTW, is your air injection system still in place? If so, it really needs to go.
