The "Periodic Maintenance
/ Lubrication Intervals" schedule is taken directly from the 1984 edition Yamaha
CV50L factory service manual.
Before starting any work, always consult
the manual for your scooter's model & year and be sure you know what you're doing.
Item |
Remarks |
Type |
300 mi (500 km) or 1 month |
Thereafter every
2,000 mi (3,000 km) or 12 months |
Thereafter every
4,000 mi (6,000 km) |
| Spark Plug | Inspect/clean or replace as required. | NGK BP6HS .024" - .028" gap | X | X | X |
| Air filter* | Clean and replace if necessary. | - |
X | ||
| Carburetor* | Check operation. Clean/refit/adjust | - | X | X | |
| Brake system* | Adjust free play. Replace shoes if needed | EBC503 | X | X | |
| Autolube pump* | Check. Adjust and bleed air as needed. | - | X | X | |
| Wheels & tires* | Front 14 psi, Rear 22 (36 max) psi | 3.50 or 110/90 x 10 | X | X | |
| Rear shock absorber* | Check operation and looks for oil leaks. Repair as required. | - | X | X | |
| Battery* | Check specific gravity and breather pipe. Top with distilled water. | 6YB8L-B | X | X | |
| Lights/signals | Check operation. Replace bulbs as required. | - | X | X | X |
| Fittings/fasteners* | Check and tighten when needed. | - | X |
X | X |
| V-Belt* | Check cracks and wear. Replace if
necessary. Replace every 12,000 mi (18,000 km) |
- | X | ||
| Transmission oil* | Replace every 8,000 mi (12,000 km) or 24 months. | 180cc (6 oz) SAE 10W30 type SE motor oil | Replace | Check | Check |
| Steering bearings* | Inspect thoroughly. Repack moderately every 8,000 mi (12,000 km). | Medium weight wheel bearing grease | Check |
Check |
Check |
| Wheel bearings* | Check bearings for smooth rotation. Replace when required. | Medium weight wheel bearing grease | X | X |