This "Periodic Maintenance
/ Lubrication Intervals" schedule is taken directly from the 1987 edition Yamaha
CG50/CE50T 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 | Check condition - clean or replace if necessary | NGK BP7HS .024 - .028 gap | X | X | X |
| Air filter* | Clean and replace if necessary | - |
X | ||
| Carburetor* | Check idle speed / starter operation. Adjust if necessary. | - | X | X | |
| Fuel line* | Check fuel hose for cracks or damage. Replace if necessary. | - | X | X |
|
| Transmission oil* | Replace every 8,000 mi (12,000 km) or 24 months. | 100cc (3.4 oz) SAE 10W30 type SE motor oil | Replace | Check | Check |
| Autolube Pump* | Check. Adjust and bleed air as needed. | - | X | X | |
| Brake | Adjust free play. Replace shoes if needed | Front EBC501, DP9109 Rear EBC519 |
X | X | |
| Wheels* | Check pressure/wear/runout | Front 18 psi, Rear 32 psi, Front & Rear tires 3.00 X 10 |
X | X | |
| Wheel bearings* | Check bearings for looseness / damage. Replace if damaged. | Medium weight wheel bearing grease | X | X | |
| Steering bearings* | Check bearing assembly for looseness. Repack moderately every 8,000 mi (12,000 km) or 24 months. | Medium weight wheel bearing grease | |||
| Rear shock absorber* | Check operation and look for oil leaks. Repair or replace as required. | - | X | X | |
| Fittings/Fasteners* | Check and tighten as needed. | - | X |
X | X |
| Battery* | Check specific gravity and breather pipe. Top with distilled water. | YB4L-B, CB4L-B | X | X | |
| Centerstand | Check operation. Repair if necessary. | - | X | X | X |
| V-Belt* | Check cracks and wear. Replace if necessary. Replace every 12,000 mi (18,000 km) | - | X |