The "Periodic Maintenance
/ Lubrication Intervals" schedule is taken directly from the Yamaha SH 50T/MT 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 6 months |
Thereafter every
4,000 mi (6,000 km) or 12 months |
| Spark plug | Inspect/Clean or replace as required. | NGK BP6HS-10 1.0 - 1.1mm (.039" - .043") gap |
X | X | X |
| Air filter* | Clean and replace if necessary. | - |
X | X | |
| Carburetor* | Check idle speed/starter operation. Adjust if necessary | - | X | X | |
| Brake system* | Check operation. Adjust if necessary | Front and Rear EBC519 | X | X | |
| Autolube pump* | Check. Adjust and bleed air as needed. | - | X | X | |
| Wheels & tires* | Check pressure/wear/runout | Front 18 psi, Rear 32 psi Front & Rear 2.50 x 10 |
X | X | |
| Rear shock absorber* | Check operation and look for oil leaks. Repair as required. | - | 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 |
| Fittings/fasteners* | Check and tighten when needed. | - | X |
X | X |
| Transmission oil* | Replace every 8,000 mi (12,000 km) or 24 months. | SAE 10W30 type SE motor oil, 0.7 liter (0.7 quart) | Replace | Check | Replace |
| Steering bearings* | Inspect thoroughly. Repack moderately every 8,000 mi (12,000 km) or 24 months. | Medium weight wheel bearing grease |
|
X | X |
| Wheel bearings* | Check bearings for damage/looseness. Replace if damaged. | Medium weight wheel bearing grease | X | X |