| Fig. | Item # | Hodaka Part # | Description | Amt. |
| B | 1 | 921001 | Crank case assembly (L&R) | 1 |
| B | 2 | 901011 | Main shaft bushing | 1 |
| B | 3 | 901004 | Counter shaft bushing | 1 |
| B | 4 | (46)0640 | Crank case screw | 3 |
| B | 5 | (46)0645 | Crank case screw | 8 |
| B | 6 | 901008 | Crank case alignment dowl (large) | 1 |
| B | 7 | 901009 | Crank case alignment dowl (small) | 1 |
| B | 8 | BB6204 | Ball bearing (#6204) | 3 |
| B | 9 | 901010 | Crank case oil seal (L) | 1 |
| B | 10 | 901003 | Crank case oil seal (R) | 1 |
| B | 11 | 901006 | Crank shaft thrust snap ring | 1 |
| B | 12 | BB6203 | Ball bearing (#6203) | 1 |
| B | 13 | 901007 | Main shaft snap ring | 1 |
| B | 14 | 901012 | Counter shaft oil seal | 1 |
| B | 15 | 901019 | Drain plug | 1 |
| B | 16 | 901020 | Drain plug gasket | 1 |
| B | 17 | 901002 | Cylinder stud bolt | 4 |
| B | 18 | 901013A | Breather | 1 |
| B | 19 | 912700 | Crank shaft assembly (20/26) | 1 |
| B | 20 | 912701 | Crank shaft (magneto side) | 1 |
| B | 21 | 912702 | Crank shft (clutch side) | 1 |
| B | 22 | 912710R | Connecting rod | 1 |
| B | 23 | 912712R | Needle bearing (small end) | 1 |
| B | 24 | 902703 | Crank pin | 1 |
| B | 25 | 902709 | Needle bearing (large end) | 1 |
| B | 26 | 902705 | Crank pin thrust washer | 2 |
| B | 27 | 902714 | Crank shaft washer (L) | 1 |
| B | 28 | 902713 | Crank shaft key (L) | 1 |
| B | 29 | 903001 | Flywheel nut | 1 |
| B | 30 | (64)10009 | Flywheel spring washer | 1 |
| B | 31 | 9201500 | Piston STD | 1 |
| B | 32 | 9201501 | Piston (#10) over size | |
| B | 33 | 9201502 | Piston (#20) over size | |
| B | 34 | 9201503 | Piston (#30) over size | |
| B | 35 | 9201504 | Piston (#40) over size | |
| B | 36 | 9202500 | Piston ring No 1 STD | 1 |
| B | 37 | 9202501 | Piston ring No 1 (#10) over size | |
| B | 38 | 9202502 | Piston ring No 1 (#20) over size | |
| B | 39 | 9202503 | Piston ring No 1 (#30) over size | |
| B | 40 | 9202504 | Piston ring No 1 (#40) over size | |
| B | 41 | 9203500 | Piston ring No 2 STD | 1 |
| B | 42 | 9203501 | Piston ring No 2 (#10) oversize | |
| B | 43 | 9203502 | Piston ring No 2 (#20) over size | |
| B | 44 | 9203503 | Piston ring No 2 (#30) over size | |
| B | 45 | 9203504 | Piston ring No 2 (#40) over size | |
| B | 46 | 922715 | Expander ring | 1 |
| B | 47 | 922707 | Piston pin | 1 |
| B | 48 | 902708 | Piston pin snap ring | 2 |
| B | 49 | 904020 | Clutch disc | 1 |
| B | 50 | 90402502 | Clutch disc spacer t=0.2 | 1 |
| B | 50 | 90402503 | Clutch disc spacer t=0.3 | 1 |
| B | 50 | 90402505 | Clutch disc spacer t=0.5 | 1 |
| B | 51 | 904014 | Crank shaft nut (left hand thread) | 1 |
| B | 52 | 904013 | Crank shaft lock washer | 1 |
| B | 53 | 924000A | Clutch assembly (54/65) | 1 |
| B | 54 | 934008 | Clutch cover | 1 |
| B | 55 | 934011 | Clutch spring | 7 |
| B | 56 | 934017 | Clutch inner spring | 7 |
| B | 57 | 924012A | Clutch hub | 1 |
| B | 58 | 904015 | Clutch thrust washer | 1 |
| B | 59 | 934006 | Clutch friction disc | 4 |
| B | 60 | 934007 | Clutch plate | 3 |
| B | 61 | 934004 | Clutch cage | 1 |
| B | 62 | 924005 | Clutch cage cover | 1 |
| B | 63 | 904009 | Clutch screw | 7 |
| B | 64 | 924010 | Clutch saftey wire | 1 |
| B | 65 | 914002R | Clutch rotor gear | 1 |
| B | 66 | 904001 | Clutch pinion gear | 1 |
| B | 67 | 904003 | Clutch pinion bushing | 1 |
| B | 68 | 904016 | Clutch thrust washer inner | 1 |