Bo here not sure about different companies but if u can get ones that fit I wldnt get too picky thies things are jst about 30 yrs old most aftermarket suppliers are moving on to newer machines my 87 has them forget the make sry. an I jst sold another set 2 months ago with a 86 lt250r but they were for a Zilla any parts u can still get buy them I jst got 2 stock carburetor s together because both carbs had incorrect internal parts like jets/needles and slides the carb I tried out before changes .the Zilla was a complete dog down low but top end wasn't too bad but still slow lol.took me a few yrs to find them and correct both of em fyi I'm tryin to get it back to stock condition.like it looked in the sho room.