Yamaha India, enjoying their eventful second spell here.They were vanished from Indian motorcycling arena for a while.But they made much memorable comeback with the launch of affordable yet truly sporty FZ-16 in India.Then we seen a series of successful launches, in all categories including sports machines.Now Yamaha India promises another excitement for New Delhi Auto Expo.We will witness the launch of an improved Yamaha YZF-R1.