摘要:
An exhaust pipe (44) is disposed on one side of a cylinder (27) so as to oppose to a power transmitting unit (25) in a widthwise direction of a vehicle body, a water pump (52) is disposed on a side surface of a lower portion of a crankcase (26) below the exhaust pipe (44), a radiator is disposed on a front portion of the vehicle body, an inlet pipe (53) and an outlet pipe (55) are disposed on one side and the other side in the widthwise direction of the vehicle substantially in parallel to each other along the vehicle longitudinal direction in a space below a foot board on which feet of a rider are put, an exhaust port (43) opens toward one side of the cylinder (27) so as to oppose to the power transmitting unit (25) in the vehicle widthwise direction, and an exhaust pipe (44) extends substantially horizontally toward a rear portion of the vehicle body from the exhaust port (43).
摘要:
A scooter type vehicle comprises: a unit swing type engine provided with an engine body having a cylinder assembly forward inclined in a horizontal direction and having a central axis arranged along a longitudinal direction of a vehicle body and a transmission case rearward extending from one side of the engine body and supporting a rear wheel to a rear end thereof, swingably pivoted to a vehicle body frame and flexibly supported to a vehicle body frame through a cushion unit; a fuel injection type intake apparatus comprising a throttle body connected to an intake port of the cylinder assembly, an air cleaner connected to the throttle body, fuel injecting means and a controller for controlling a fuel injection amount; and an article accommodation box arranged above the unit swing type engine. In such scooter type vehicle, a bottom surface of the accommodation box (7) is formed in an obliquely forward descending manner so as to be substantially parallel to a line (X-X, X'-X') connecting the highest position of the unit swing type engine (10) in a state that the cushion unit (15) is most compressed and the highest position of the fuel injecting means (50) or the air cleaner (48), and the controller (58) is arranged in adjacent to a fuel tank (9) arranged in the longitudinal direction of the vehicle body in the accommodation box (7).
摘要:
A scooter type vehicle comprises: a unit swing type engine provided with an engine body having a cylinder assembly forward inclined in a horizontal direction and having a central axis arranged along a longitudinal direction of a vehicle body and a transmission case rearward extending from one side of the engine body and supporting a rear wheel to a rear end thereof, swingably pivoted to a vehicle body frame and flexibly supported to a vehicle body frame through a cushion unit; a fuel injection type intake apparatus comprising a throttle body connected to an intake port of the cylinder assembly, an air cleaner connected to the throttle body, fuel injecting means and a controller for controlling a fuel injection amount; and an article accommodation box arranged above the unit swing type engine. In such scooter type vehicle, a bottom surface of the accommodation box (7) is formed in an obliquely forward descending manner so as to be substantially parallel to a line (X-X, X'-X') connecting the highest position of the unit swing type engine (10) in a state that the cushion unit (15) is most compressed and the highest position of the fuel injecting means (50) or the air cleaner (48), and the controller (58) is arranged in adjacent to a fuel tank (9) arranged in the longitudinal direction of the vehicle body in the accommodation box (7).
摘要:
A scooter type vehicle comprises: a unit swing type engine provided with an engine body having a cylinder assembly forward inclined in a horizontal direction and having a central axis arranged along a longitudinal direction of a vehicle body and a transmission case rearward extending from one side of the engine body and supporting a rear wheel to a rear end thereof, swingably pivoted to a vehicle body frame and flexibly supported to a vehicle body frame through a cushion unit; a fuel injection type intake apparatus comprising a throttle body connected to an intake port of the cylinder assembly, an air cleaner connected to the throttle body, fuel injecting means and a controller for controlling a fuel injection amount; and an article accommodation box arranged above the unit swing type engine. In such scooter type vehicle, a bottom surface of the accommodation box (7) is formed in an obliquely forward descending manner so as to be substantially parallel to a line (X-X, X'-X') connecting the highest position of the unit swing type engine (10) in a state that the cushion unit (15) is most compressed and the highest position of the fuel injecting means (50) or the air cleaner (48), and the controller (58) is arranged in adjacent to a fuel tank (9) arranged in the longitudinal direction of the vehicle body in the accommodation box (7).
摘要:
A scooter-type motorcycle (1) has a structure in which an article accommodation box (33) is disposed below a rider's seat (32) which is upward openable, and a power unit (7) including an engine (9) and a power transmission (10) is disposed below the article accommodation box (33) to be vertically swingable together with a rear wheel (12). The power unit (7) is connected to a swing shaft (6), which is disposed above a front portion of an engine crank case (11), and a starter motor (21) for starting an operation of the engine (9) is disposed above a rear portion of the crank case (11). An air cleaner (26), a suction pipe (25), a throttle body (24) and an intake manifold (23) are arranged substantially from a rear side portion of a motorcycle body (2) towards a front side portion thereof so as to constitute an engine intake device (30) to be connected to the engine (9). The throttle body (24) is disposed between the swing shaft (6) and the starter motor (21).
摘要:
An engine unit of a motorcycle generally comprises a cylinder head, a cylinder block formed with a cylinder bore therein, a crankcase and a rear case sequentially assembled in this order from a front side of a motorcycle body. A crankshaft is pivoted to a mating face between the cylinder block and the crankcase, a counter shaft which is rotated with the crankshaft in an interlocking manner is pivoted to a mating face between the crankcase and the rear case. These two mating faces lie in planes parallel to each other so as to be substantially perpendicular to a center axis of the cylinder bore of the cylinder block.
摘要:
A fuel tank system (5) of a motor bicycle according to the present invention comprises: a tank main body (26) made of a synthetic resin, which is formed into a reverse U-letter shape in its longitudinal section (27) in a manner of riding on a front head portion of a vehicle-body frame (2); a fuel supply port (50) which is provided on an upper portion of the tank main body (26); a receiving pan portion (51) which is provided in the fuel supply port; a relay joint (80) which is arranged in a vicinity of a bottom portion of the tank main body and whose attaching direction is the substantially same as an attaching direction of the receiving pan portion; and a drain pipe (85) which comprises a soft hose, passes through an interior of the tank main body, and connects between the receiving pan portion and the relay joint. Further, a fixing member for fixing the tank main body to the vehicle-body frame is formed out of a rigid material independently from the tank main body, a fixing portion on the tank main body side of the fixing member has a shape formed so as to surround a fixture plate of the relay joint, and the fixing member has a shape in its side view such that at least part of the fixing member is situated on a position lower than the relay joint when the fixing member is fixed to the tank main body.