The carby part No. is listed as the same for KX 125 - 74, 75 & 76.
The float you can pinch from many models....
Part # = 16031-026
Part Description = FLOAT
Model Count = 26
KD125 75 125 KD125 MOTOCROSS
KD125-A2 76 125 KD125 MOTOCROSS
KD125-A3 77 125 KD125 MOTOCROSS
KD125-A4 78 125 KD125 MOTOCROSS
KD125-A5 79 125 KD125 MOTOCROSS
KE125-A3 76 125 KE125 DUAL PURPOSE
KE125-A4 77 125 KE125 DUAL PURPOSE
KE125-A5 78 125 KE125 DUAL PURPOSE
KE125-A6 79 125 KE125 DUAL PURPOSE
KE125-A7 80 125 KE125 DUAL PURPOSE
KE125-A8 81 125 KE125 DUAL PURPOSE
KS125 74 120 KS125 DUAL PURPOSE
KS125A 75 120 KS125 DUAL PURPOSE
KX125A 75 125 KX125 MOTOCROSS
KX125-A3 76 125 KX125 MOTOCROSS
KE125-A9 82 125 KE125 DUAL PURPOSE
KX125 74 125 KX125 MOTOCROSS
F7C 74 175 F7 175E ENDURO DUAL PURPOSE
F7D 75 175 F7 175E ENDURO DUAL PURPOSE
KD175-A1 76 175 KD175 MOTOCROSS
KD175-A2 77 175 KD175 MOTOCROSS
KD175-A3 78 175 KD175 MOTOCROSS
KD175-A4 79 175 KD175 MOTOCROSS
KE175-B1 76 175 KE175 DUAL PURPOSE
KE175-B2 77 175 KE175 DUAL PURPOSE
KE175-B3 78 175 KE175 DUAL PURPOSE