Honda CTX700A Owner's Manual page 18

Refuelling and Fuel Guidelines
Follow these guidelines to protect the engine
and catalytic converter:
●
Use only unleaded petrol.
●
Use recommended octane number. Using
lower octane petrol will result in decreased
engine performance.
●
Do not use fuels containing a high
concentration of alcohol.
●
Do not use stale or contaminated petrol or an
oil/petrol mixture.
●
Avoid getting dirt or water in the fuel tank.
P. 120
2
Riding Precautions
15