Yamaha TT-R125(P) Owner's Service Manual page 54

FUEL
Use regular gasoline. Always use fresh, name
brand gasoline.
WARNING
Do not overfill the fuel tank. Avoid spilling
fuel on the hot engine. Do not fill the fuel
tank above the bottom of the filler tube 1
as shown in the illustration or it may over-
flow when the fuel heats up later and
expands.
a Fuel level
Recommended fuel:
For USA, AUS and NZ:
Unleaded gasoline only
For CDN and EUROPE:
Regular
only
For ZA:
Regular gasoline
Fuel tank capacity:
Total:
6.6 L (1.45 lmp gal, 1.74 US gal)
Reserve:
1.9 L (0.42 lmp gal, 0.5 US gal)
CAUTION:
Use only unleaded gasoline. The use of
leaded gasoline will cause severe damage
to the engine internal parts such as valves,
piston rings, and exhaust system, etc.
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GEN
FUEL
INFO
unleaded gasoline