Its a peice of cake. You take the float bowl off, and BAMMMMM the main jet is looking right at you. unscrew it, put in the new one. The pilot jet is in a passage about an inch down, and you will need a small flat head to remoce that, and you usually dont have to change te needle valve, just make sure its not sticking. Y are you changing the jets?? Is it running crappy. If it isnt, and its running good, i would think a little before i went to a leaner jet, especially when you are jumping 5 leaner sizes right from the start.
Need some darn snow people.
Need some darn snow people.