Abstract: A leaning vehicle includes an actuator, a left steerable front wheel, a right steerable front wheel, a steering mechanism and a leaning mechanism. The steering mechanism includes a first center steering shaft, a second center steering shaft disposed at the front side of the first center steering shaft, and a center steering shaft rotation interlocking mechanism that interlocks rotation of the first center steering shaft with rotation of the second center steering shaft. The actuator is provided between a left end and a right end of a link member of the leaning mechanism in the left-right direction. At least one part of the actuator is provided at a position that overlaps with a movable range of the center steering shaft rotation interlocking mechanism as viewed from the up direction or the down direction.

Abstract: A leaning vehicle includes a vehicle body; a rear wheel; a left arm mechanism; a left steerable front wheel; a right arm mechanism; a right steerable front wheel; a leaning mechanism; a leaning drive mechanism; and a steering mechanism. The leaning drive mechanism is disposed between any one of a left-right arm connection mechanism, the left arm mechanism and the right arm mechanism and the vehicle body. A rear end of the leaning drive mechanism is disposed at a rear side of a lower end of a steering shaft in the front-back direction of the vehicle body. A front end of the leaning drive mechanism is disposed at a front side of an upper end of the steering shaft. At least a portion of the leaning drive mechanism is disposed at a down side of the steering shaft in the up-down direction of the vehicle body.

Abstract: A leaning vehicle includes an actuator, a left steerable front wheel, a right steerable front wheel, a steering mechanism and a leaning mechanism. The steering mechanism includes a first center steering shaft, a second center steering shaft disposed at the front side of the first center steering shaft, and a center steering shaft rotation interlocking mechanism that interlocks rotation of the first center steering shaft with rotation of the second center steering shaft. The actuator is provided between a left end and a right end of a link member of the leaning mechanism in the left-right direction. At least one part of the actuator is provided at a position that overlaps with a movable range of the center steering shaft rotation interlocking mechanism as viewed from the up direction or the down direction.

Abstract: A leaning vehicle includes a vehicle body; a rear wheel; a left arm mechanism; a left steerable front wheel; a right arm mechanism; a right steerable front wheel; a leaning mechanism; a leaning drive mechanism; and a steering mechanism. The leaning drive mechanism is disposed between any one of a left-right arm connection mechanism, the left arm mechanism and the right arm mechanism and the vehicle body. A rear end of the leaning drive mechanism is disposed at a rear side of a lower end of a steering shaft in the front-back direction of the vehicle body. A front end of the leaning drive mechanism is disposed at a front side of an upper end of the steering shaft. At least a portion of the leaning drive mechanism is disposed at a down side of the steering shaft in the up-down direction of the vehicle body.

Abstract: A multiple cylinder engine cooling apparatus includes a bottom wall of a cylinder head, a lower end of a spark plug inserting cylindrical wall, a lower end of an inlet port, an exhaust port, and a water jacket. A plurality of combustion chamber forming recesses are formed in the cylinder head to line up in a longitudinal direction parallel to an axial direction of a crank shaft. The spark plug inserting cylindrical wall extends from each recess upward in a direction opposite to a combustion chamber. The inlet port extends from each recess laterally in one direction perpendicular to the longitudinal direction. The exhaust port extends from each recess laterally in the other direction. The water jacket is formed in the cylinder head to cool the bottom wall of the cylinder head, the lower end of the spark plug inserting cylindrical wall, the lower end of the inlet port, and the exhaust port. The water jacket includes a first water jacket portion and a second water jacket portion.

Abstract: A multiple cylinder engine cooling apparatus includes a bottom wall of a cylinder head, a lower end of a spark plug inserting cylindrical wall, a lower end of an inlet port, an exhaust port, and a water jacket. A plurality of combustion chamber forming recesses are formed in the cylinder head to line up in a longitudinal direction parallel to an axial direction of a crank shaft. The spark plug inserting cylindrical wall extends from each recess upward in a direction opposite to a combustion chamber. The inlet port extends from each recess laterally in one direction perpendicular to the longitudinal direction. The exhaust port extends from each recess laterally in the other direction. The water jacket is formed in the cylinder head to cool the bottom wall of the cylinder head, the lower end of the spark plug inserting cylindrical wall, the lower end of the inlet port, and the exhaust port. The water jacket includes a first water jacket portion and a second water jacket portion.

Abstract: An internal combustion engine is provided that includes a combustion chamber; a secondary air passage located above the combustion chamber; an exhaust passage that communicates with the combustion chamber; and a water jacket that is located between the exhaust passage and the secondary air passage.

Abstract: An internal combustion engine is provided that includes a combustion chamber, a secondary air passage located above the combustion chamber; an exhaust passage that communicates with the combustion chamber, and a water jacket that is located between the exhaust passage and the secondary air passage.

Abstract: A number of cylinder head arrangements that provide low cost and easy assembly of their various components with minimum labor and reduced necessity for line boring to reduce both manufacturing and assembly operation without adversely affecting performance.