Abstract: To improve maintenance workability of fuel injection valves in multiple throttle bodies, a distribution member (D) is provided with a fuel distribution path (3) communicating with a fuel inflow path (8), throttle body mounting holes (7, 7) and injection valve support member mounting holes (6, 6), injection valve support members (S, S) are provided with injection valve support bosses (12, 12), the distribution member (D) is screwed to the one and other side throttle bodies (T1, T2) via the throttle body mounting holes (7, 7), the other side end surfaces (11, 11) of the injection valve support members (S, S) are screwed on one and the other side end surfaces (1, 2) of the distribution member (D), and the other and one side fuel injection valves (Ja, Jb) are held by the injection valve support members (S, S) and the other and one side throttle body (T2, T1) respectively.

Abstract: To improve maintenance workability of fuel injection valves in multiple throttle bodies, a distribution member (D) is provided with a fuel distribution path (3) communicating with a fuel inflow path (8), throttle body mounting holes (7, 7) and injection valve support member mounting holes (6, 6), injection valve support members (S, S) are provided with injection valve support bosses (12, 12), the distribution member (D) is screwed to the one and other side throttle bodies (T1, T2) via the throttle body mounting holes (7, 7), the other side end surfaces (11, 11) of the injection valve support members (S, S) are screwed on one and the other side end surfaces (1, 2) of the distribution member (D), and the other and one side fuel injection valves (Ja, Jb) are held by the injection valve support members (S, S) and the other and one side throttle body (T2, T1) respectively.

Abstract: To easily carry out change pulling directions of opening and closing wires in a link type throttle valve control device, a throttle valve operation dram 61 and a first link lever 62 are mounted at a throttle valve operation shaft 3, the throttle valve operation dram 61 has opening and closing valve end inserting holes 61a, 61b, the throttle valve operation shaft 3 is rotatably provided at a stay plate 1 having first and second cable guide inserting holes 1d, 1e, and rotatably provided coaxially with a throttle valve shaft 52, first and second link levers 62, 56 mounted at the throttle valve shaft 52 are linked by a connection lever 63a, the stay plate 1 is rotated to a desired position around the throttle valve shaft 52, and in this state, the stay plate 1 is fixed at a throttle body 50 by screws 5.

Abstract: To easily carry out change pulling directions of opening and closing wires in a link type throttle valve control device, a throttle valve operation dram 61 and a first link lever 62 are mounted at a throttle valve operation shaft 3, the throttle valve operation dram 61 has opening and closing valve end inserting holes 61a, 61b, the throttle valve operation shaft 3 is rotatably provided at a stay plate 1 having first and second cable guide inserting holes 1d, 1e, and rotatably provided coaxially with a throttle valve shaft 52, first and second link levers 62, 56 mounted at the throttle valve shaft 52 are linked by a connection lever 63a, the stay plate 1 is rotated to a desired position around the throttle valve shaft 52, and in this state, the stay plate 1 is fixed at a throttle body 50 by screws 5.

Abstract: To provide an accelerator opening degree detecting apparatus for a two-wheeled vehicle, which is not damaged even if the two-wheeled vehicle takes a fall, and is excellent in waterproofness and weather resistance, a rotating shaft (11) is rotatably supported to a fixed member (10), an accelerator opening degree sensor (13) is arranged in one end (11b) of the rotating shaft (11), a rotating drum (12) is arranged in the other end (11a), the rotating drum (12) and an accelerator grip (16) are coupled by a coupling member (17), and the accelerator grip (16) and the rotating drum (12) are synchronously rotated.

Abstract: To provide an accelerator opening degree detecting apparatus for a two-wheeled vehicle, which is not damaged even if the two-wheeled vehicle takes a fall, and is excellent in waterproofness and weather resistance, a rotating shaft (11) is rotatably supported to a fixed member (10), an accelerator opening degree sensor (13) is arranged in one end (11b) of the rotating shaft (11), a rotating drum (12) is arranged in the other end (11a), the rotating drum (12) and an accelerator grip (16) are coupled by a coupling member (17), and the accelerator grip (16) and the rotating drum (12) are synchronously rotated.

Abstract: To improve freedom of mounting to a motor cycle, a tandem valve type throttle body is provided with a throttle valve (4) in the downstream side of an intake passage (2) and a sub throttle valve (9) in the upstream side thereof, a sub throttle valve shaft (8) is rotated by a motor (M), a sub throttle valve lever (10) and a throttle valve lever (5) are connected by a transmission member, the shaft (8) and a sensor rotor (TA) of an opening degree sensor (T) are energized in the opening direction of the shaft (9) by a rotor spring (TC), a link lever spring (14) pressing the transmission member (12) in one direction is energized in the closing direction of the valve (9), and torque is set so as to cancel spring forces applied to the shaft (8) by both the springs (TC), (14).

Abstract: To reduce the number of the fuel distribution pipes and fuel joints to make the cost for them inexpensive, a fuel distribution pipe is provided with a fuel distribution passage with one end being opened by a fuel introduction hole, a plurality of injection valve insertion holes positioned apart from a longitudinal axial line of the fuel distribution passage toward one side by a predetermined amount, having longitudinal axial lines thereof crossing orthogonally to the longitudinal axial line, and having a leading end open toward one side a plurality of mounting bosses formed orthogonally to a cross section including the longitudinal axial lines and, and each having an upper end surfaces and a lower end surfaces uniformly protruding upward and, downward a predetermined amount from the longitudinal axial line, and mounting holes provided in the mounting bosses apart from the longitudinal axial line toward one side by a predetermined amount, at least two fuel distribution pipes being prepared, the fuel introducti

Abstract: To reduce the number of the fuel distribution pipes and fuel joints to make the cost for them inexpensive, a fuel distribution pipe is provided with a fuel distribution passage with one end being opened by a fuel introduction hole, a plurality of injection valve insertion holes positioned apart from a longitudinal axial line of the fuel distribution passage toward one side by a predetermined amount, having longitudinal axial lines thereof crossing orthogonally to the longitudinal axial line, and having a leading end open toward one side a plurality of mounting bosses formed orthogonally to a cross section including the longitudinal axial lines and, and each having an upper end surfaces and a lower end surfaces uniformly protruding upward and, downward a predetermined amount from the longitudinal axial line, and mounting holes provided in the mounting bosses apart from the longitudinal axial line toward one side by a predetermined amount, at least two fuel distribution pipes being prepared, the fuel introducti

Abstract: To provides a throttle valve control apparatus which can stably detect an angle of a throttle valve shaft for a long time with no hysteresis in detecting an angle of the throttle valve shaft, and can make a motor for driving the throttle valve shaft compact, an intake passage 2 is controlled to be opened and closed by a throttle valve 4 mounted to a throttle valve shaft 3, a spring force in a direction for closing of the throttle valve 4 is energized to the throttle valve shaft 3 by a throttle return spring 6, the throttle valve shaft 3 is operated to be opened and closed by a motor M driven according to a signal output from an ECU, a rotation angle of the throttle valve shaft 3 is detected by an opening degree sensor T arranged to face to the throttle valve shaft 3, this angle signal is output toward the ECU, and a sensor rotor TA constituting the opening degree sensor is pressed and energized to an end portion of the throttle valve shaft 3 in a rotation direction of the throttle valve 4 by a rotor return sp

Abstract: To provides a throttle valve control apparatus which can stably detect an angle of a throttle valve shaft for a long time with no hysteresis in detecting an angle of the throttle valve shaft, and can make a motor for driving the throttle valve shaft compact, an intake passage 2 is controlled to be opened and closed by a throttle valve 4 mounted to a throttle valve shaft 3, a spring force in a direction for closing of the throttle valve 4 is energized to the throttle valve shaft 3 by a throttle return spring 6, the throttle valve shaft 3 is operated to be opened and closed by a motor M driven according to a signal output from an ECU, a rotation angle of the throttle valve shaft 3 is detected by an opening degree sensor T arranged to face to the throttle valve shaft 3, this angle signal is output toward the ECU, and a sensor rotor TA constituting the opening degree sensor is pressed and energized to an end portion of the throttle valve shaft 3 in a rotation direction of the throttle valve 4 by a rotor return sp

Abstract: In a tandem valve type throttle body in which a sub throttle valve lever and a throttle valve lever are connected by a transmission member, a freedom of mounting characteristic to a motor cycle is improved by making a motor for driving a sub throttle valve shaft compact. The tandem valve type throttle body is provided with a throttle valve 4 in a downstream side of an intake passage 2, and with a sub throttle valve 9 in an upstream side thereof. The sub throttle valve shaft 8 is rotated and controlled by a motor M, and a sub throttle valve lever 10 and a throttle valve lever 5 are connected to each other by a transmission member. The sub throttle valve shaft 8 and a sensor rotor TA of an opening degree sensor Tare energized in an opening direction of the sub throttle valve shaft 9 by a rotor spring TC, and a link lever spring 14 which presses the transmission member 12 to one direction is energized in a closing direction of the sub throttle valve 9.

Abstract: To provide a tandem valve type throttle body in which a closing direction of a second throttle valve is not restricted to one side, can an intake efficiency can be improved, and an entire length of a throttle body can be reduced, a butterfly type first throttle valve (3) is attached to a first throttle valve shaft (4) and operated by an accelerator, a butterfly type second throttle valve (5) is disposed in an upstream side of the first throttle valve (3) and attached to a second throttle valve shaft (6), the second throttle valve (5) is formed in an always open type and operated so as to be closed by an electromagnetic actuator, an axial pitch (P) between the first throttle valve shaft (4) and the second throttle valve shaft (6) is twice a radius (R) of the throttle valve (3) or less, and a notch portion (5B) is formed in the second throttle valve (5) in correspondence to an interference portion on planes of both the throttle valves (3, 5) at a time of fully opening both the throttle valves (3, 5).

Abstract: A vacuum actuated valve for a constant vacuum type carburetor is formed with a first guide hole, a jet needle engaging step portion and a jet needle insertion hole therein. A spring seat has an outer cylindrical portion in an upper portion thereof, and an inner cylindrical portion and a jet needle supporting cylindrical portion therein. The outer cylindrical portion of the spring seat is arranged on the outer circumference of a diaphragm plate. The jet needle supporting cylindrical portion is inserted within a first guide hole. A lower end of a vacuum actuated valve return spring engages with a spring seating flange of the spring seat. A flange portion of a jet needle is restricted by the jet needle engaging step portion and the jet needle supporting cylindrical portion.