i have the mikuni 45 carb on my rhino and took it to the sierras riding this weekend .most or the riding was a average 8000 ft elevation and its jetted for sea leval. current set up is 160 main forgot what slow jet was, needle middle clip and air screw about 2 turns out, i planned on changing the main an few sizes down when i got there but realized i forgot them at home. i drove all weekend and it sounded like it was sputtering and missing somtimes. im sure it was way to rich. TOO MUCH FUEL. my question to you is , if i did bring them main jets what size do you think would of worked best for that elevation? i was guessing 2 sizes down.