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This is the motorcycle that has Bajaj and TVS all stirred up. Sadly, it isn't because the damn thing's so good looking. Hmph. The nub of the matter is that the TVS has two spark plugs and a third valve – an inlet that opens later, sort of like VTEC. No all that's wrong. What happens is that TVS' carburettor opens into two vertically stacked manifolds that lead to the two intake valves, one each. As the carburettor slide rises on throttle application, the fuel-air mix first begins to travel down the lower one, the 'swirl port' as TVS calls it. This port is designed to operate with maximum swirl, generating maximum possible turbulence to allow the engine to offer great economy and torque. As the revs (and the slide) continue to rise, the carburettor begins to feed the motor through the other manifold, the 'power port'. This port is straigher compared to the curvy swirl port, and it's job in life is to flow more mixture. At high revs, this allows the engine to breathe deeper and make more power.
I haven't had any saddle time, but am told that the torque levels are admirable. In many respects, this might be the best looking 125 on the market soon. Launch is expected by November.
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