| Yamaha Parts | ||
| Part No. | Description | Price |
| 787-11311-00 | Cylinder | $220.40 |
| 787-(size) | Piston | $33.45 |
| 131-11633-00 | Wrist Pin | $5.25 |
| 787-11111-04 | Cylinder Head | $154.50 |
| 50-W-11651-00 | Lite Rod | $27.74 |
| 7F6-11651-02 | Medium Rod | $41.93 |
| 787-11681-00 | Crankpin | $10.95 |
| 90209-20159 | Crankpin Washer | $3.25 |
| CRB5 | Lower Rod Brg. | |
| 7YB-11400-10 | Crank Assembly | |
| 7YB-11422-10 | PTO Half | $103.40 |
| 7YA-11412-10 | Mag Half | $91.66 |
| WPB7 | Upper Rod Brg. | |
| 7F6-15411-02 | N/S Ignition Cover | $20.85 |
| O/S Ignition Cover | ||
| N/S Stator | $116.20 | |
| O/S Stator | $116.20 | |
| 7F6-85551-01 | Std. Rotor | $85.69 |
| 7F6-85551-51 | Reverse Rotor | $83.00 |
| 7F6-85540-01 | TCI Unit | $140.00 |
| 90201-13202 | Rotor Washer | $2.35 |
| 90179-12N01 | Rotor Nut | $4.45 |
| Spark Plug Boot | ||
| 8A7-14613-09 | Exhaust Gasket | $4.25 |
| 7YA-13522-00 | Pulse Nozzle | $2.25 |
| 787-13586-00 | Phenolic Spacer | $5.95 |
| 787-13585-00 | Aluminum Spacer | $22.86 |
| 787-14291-00 | Throttle Bracket | $3.65 |
| 90123-06002 | Throttle Adjuster | $3.55 |
| 95617-08325 | Exhaust Stud | $2.45 |
| 90179-08N15 | Cylinder & Head Nut | $4.25 |