ST125Y-1 Professional
| NUMBER | PART NO. | DESCRIPTION | QTY. |
| 1a | D-1-1a-11100-19H00 | 125cc ENGINE (ELECTRIC STARTING MODEL) | 1 |
| 2 | D-1-2-SY1E02 | GASKET, INTAKE MANIFOLD | 1 |
| 3 | D-1-3-SY1E03 | INTAKE MANIFOLD PIPE | 1 |
| 4 | D-1-4-SY1E04 | INTAKE BOLT, TO ENGINE | 2 |
| 5 | D-1-5-SY1E05 | INTAKE BOLT, TO CARBURETOR | 2 |
| 6 | D-1-6-SY1E06 | GASKET, CARBURETOR. | 1 |
| 8 | DAB-1-8 | BOLT,A51E08 | 1 |
| 9 | DAB-1-9 | AIR-INTAKE ASSY. | 1 |
| 10 | D-1-10-SY1E14 | KICK -START ARM ASSY. | 1 |
| 11 | D-1-11-SY1E15 | BOLT,SY1E14 | 1 |
| 12 | D-1-12-SY1E16 | CHAIN, (SHORT WHEEL BASE) | 1 |
| 12a | D-1-12a-SY1E16A | CHAIN, (LONG WHEEL BASE) | 1 |
| 13 | D-1-13-SY1E17 | GEARSHIFT, PEDAL ASSY. | 1 |
| 14 | D-1-14-SY1E18 | BOLT SY1E17 | 1 |
| 15 | ABD-1-19 | BRACKET, SIDE STAND | 1 |
| 16 | D-1-16-SY1E20A | ALUMINOUS FOOTREST , L | 1 |
| 17 | D-1-17-SY1E21A | ALUMINOUS FOOTREST , R | 1 |
| 18 | D-1-18-SY1E22 | RETURN SPRING, FOOTPEG | 2 |
| 19A | D-1-19a-SY1E23A | SIDE STAND( SHORT,10"REAR WHEEL) | 1 |
| 20 | ABD-1-24 | BOLT, SIDE STAND | 1 |
| 21 | ABD-1-25 | RETURN SPRING, SIDE STAND | 1 |
| 22 | ABD-1-26 | WASHER FOOTREST | 3 |
| 23 | ABD-1-27 | CLIP FOOTREST | 3 |
| 24 | ABD-1-28 | BOLT SY1E19 | 4 |
| 25 | ABD-1-29 | PIN, FOOTREST | 2 |