Carb# s ok 87-model 43B00 88-89- models 43B10 90-model 43B20 the 43B #s are the ones on that upper/top square pad on the intake side of carb FYI I jst got all the proper internal parts last week from East Coast Atv in Coopersburg,Pa they have a web site an they ship parts they also had a complete 43B10 carb there that fits 88-89 models for $140 comes with cable and thumb throttle hope this helps u and ur machine out.Good Luck on ur hunt .