Lorenzo unsure about new engine

MotoGP championship leader Jorge Lorenzo admitted that the new engine Yamaha delivered for Monday's Barcelona test did not deliver much. Assessing the revised engine was one of the priorities for the Catalunya Grand Prix-winning team, but after going eighth quickest Lorenzo conceded he had hoped for a bigger step. "We tried a new engine spec yesterday that in theory is more powerful," said Lorenzo

Christian Goethals Jean Pierre Jabouille Billy Garrett Scott Russell Riggs David Carl Allison Brian Gubby