Patent ID: 7650862

Claim:
A multiple-cylinder DOHC engine mounted in a motorcycle, comprising: a cylinder head; a first camshaft that is mounted on the cylinder head and is configured to drive one of an intake valve and an exhaust valve mounted on the cylinder head; a second camshaft that is mounted on the cylinder head and is configured to drive the other one of the intake valve and the exhaust valve; a camshaft drive system that is mounted at an end portion of the first camshaft in an axial direction thereof and is configured to drive the first camshaft; and a driving power transmission mechanism that is disposed at a center portion of the first and second camshafts in the axial direction to transmit a driving power from the first camshaft to the second camshaft, wherein a pair of frame members of the motorcycle extends substantially rearward and has a width therebetween that is smaller in a vicinity of front end portions thereof, and the second camshaft is disposed between the pair of frame members, wherein the engine is mounted in the motorcycle such that the second camshaft is positioned forward relative to the first camshaft.