Honda CRF50F 2007 Owner's Manual page 177

Quick Reference
Initial Maintenance
Regular
Maintenance
Pre-ride Inspection
Fuel/Capacity
Engine Oil
Maximum Weight
Capacity
Tires
Tire Pressure (cold)
Spark Plug
Quick Reference
about 100 miles (150 km) or 1 month.
about every 600 miles (1,000 km) or 6 months.
Check the following items each time before you ride (page
leaks, engine oil, fuel, drive chain, cables, nuts & bolts, spark plug & cap, throttle, and
brakes.
unleaded gasoline, pump octane number of 86 or higher
tank: 0.79 US gal (3.0 )
reserve: 0.24 US gal (0.9 )
API Service Classification SG or higher except oils labeled as energy conserving on the
circular API service label, SAE 10W-30, JASO T 903 standard MA,
Pro Honda GN4 or HP4 (without molybdenum additives) 4-stroke oil or equivalent
88 lbs (40 kg)
rider only (no passenger or cargo) and any accessories
Front: 2.50-10 33J , Rear:
Type: bias-ply, tube
Front: 15 psi (100 kPa , 1.0 kgf/cm )
Rear: 18 psi (125 kPa , 1.25 kgf/cm )
or
CR6HSA (NGK) U20FSR-U (DENSO)
2.50-10 33J
27 ): tires, spokes & rims,