TVS RAIDER Owner's Manual page 60

RAM AIR DUCT
TVS Raider 125 is designed with a ram air duct on the
right side of the fuel tank. This ram air duct throws
air exactly above the spark plug while the vehicle in
move.
The air thrown above the spark plug cools the plug
and maintains its temperature in optimum level.
Which in-turn results in better heat management
without any compromise on the engine performance
and improves the engine's durability.
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Caution
Care should be taken not to block the ram air duct air
passage by cover or any other means. Else it will lead to
over heating of engine or seizure.
LED HEADLAMP
TVS Raider 125 comes with a LED headlamp which
glows automatically once the engine is started. The
headlamp beam (high / low) can be controlled by
pressing the 'high / low' beam switch.
Note
Headlamp glows only when the engine is running.