It is all the same carb.I had a 91 on mine and now i got a 87.Try a 220 and 35 see what happen or 240 and 30,Im just telling what i have in mine.When i had stock cage with boysen replacements and uni filter.I was running 220 40,What oil ratio are you running.They were 20 to 1 new 240 main.every 4 ounces of oil you take out will cause the jet to get rich from losing the oil..So if your 32.1 that 3 sizes down right  thier,Then your reed will make it rich,Everything i done to my lt made it rich like air filter reeds and such i had to keep going down.