JP6491043B2 - Mounting structure for motorcycle electrical components - Google Patents

Description

  The present invention relates to a mounting structure for an electrical component in a motorcycle including a main frame having a pair of left and right frame pieces.

  2. Description of the Related Art In recent years, there is a demand for reducing the opening width of both legs at a riding position, that is, reducing the dimension in the vehicle width direction of the front part of the vehicle body in order to improve maneuverability in a motorcycle. However, various electrical components are arranged inside the cowl and the cover at the front of the vehicle body, making it difficult to slim the front of the vehicle body. For example, as disclosed in Patent Document 1, there is one in which a regulator is disposed in the vicinity of a transmission.

Japanese Patent No. 5138402

  However, when the regulator is arranged in the vicinity of the transmission as in Patent Document 1, particularly in a motorcycle that travels on rough terrain such as for a motocross, mud splashed up by the rear wheel is likely to adhere.

  SUMMARY OF THE INVENTION An object of the present invention is to provide an electric component mounting structure for a motorcycle capable of slimming the front part of the vehicle body.

  In order to achieve the above object, an electrical equipment mounting structure for a motorcycle according to the present invention is an electrical equipment mounting structure for a motorcycle including a main frame having a pair of left and right frame pieces, on the rear surface of an engine cylinder head. An intake passage is connected, an exhaust passage is connected to the front surface of the cylinder head, and the electrical component is disposed behind the cylinder head and above the intake passage inside one of the frame pieces, It is attached to one frame piece. The electrical component is a component throughout the electrical system including the electrical control system of the engine and the control system of the lamp. For example, the electrical component is a regulator that converts and controls an alternating current generated by the generator into a direct current voltage.

  According to this configuration, since the electrical component is disposed not behind the front portion of the vehicle body but behind the cylinder head, the front portion of the vehicle body becomes slim. In addition, since the electrical component is disposed inside the frame piece and above the intake passage behind the cylinder head, mud does not easily adhere even to a motorcycle that travels on rough terrain such as a motocross. Furthermore, since it is arrange | positioned inside the frame piece, even if it falls down by any chance, an electrical component is hard to be damaged. Moreover, since it arrange | positions at the intake side used as low temperature compared with an exhaust side, the temperature rise of an electrical component is suppressed.

  In the present invention, it is preferable that the electrical component is disposed above a throttle body provided in the intake passage. According to this configuration, since there are relatively few peripheral parts between the frame pieces and behind the engine and above the throttle body, it is easy for the running wind to flow, so that the heat dissipation of the electrical components is improved.

  In the present invention, a fuel tank is disposed above the engine, a fuel pump is mounted on the lower surface of the fuel tank, and a fuel hose connecting the fuel pump and the fuel injection valve is disposed on one side of the fuel pump. When arranged, the electrical component is preferably arranged on the other side of the fuel pump. According to this configuration, it is possible to arrange electrical components using space effectively while avoiding interference with the fuel pump and the fuel hose. Further, the traveling wind can be guided to the electrical component without being blocked by the fuel pump and the fuel hose.

  In the present invention, when the cable extending from the control device mounted on the vehicle body is disposed along one frame piece of the pair of left and right frame pieces, the electrical component is fixed to the other frame piece. It is preferable. According to this configuration, it is possible to arrange electrical components using space effectively while avoiding interference with the cable. Further, the traveling wind can be guided to the electrical component without being obstructed by the cable.

  In the present invention, it is preferable that the intake passage is disposed on one side in the vehicle width direction, and the electrical component is disposed on the other side opposite to the one side. According to this configuration, it is possible to arrange electrical components using space effectively while avoiding interference with the intake passage.

  In the present invention, the electrical component is attached to the inside of one frame piece via a bracket, and is covered with the one frame piece from the outside in a side view, and the electrical component is the one frame piece. It is preferable that it is fastened by a fastening member that is attached from the outside. According to this configuration, since the electrical component is covered with the frame piece from the outside, the appearance is improved. Moreover, since it can fasten from the outer side of a vehicle body, workability | operativity improves. In this case, it is preferable that the bracket is made of a plate material and fastened to the electrical component via an elastic body. According to this structure, it can suppress that the vibration of a vehicle body is transmitted to an electrical component from a flame | frame piece. Moreover, the existing small grommet-type elastic body can be used.

  According to the electric component mounting structure for a motorcycle of the present invention, the front portion of the vehicle body is slim and the electric component is not easily mud.

1 is a side view showing a motorcycle including an electrical component mounting structure according to a first embodiment of the present invention. Fig. 2 is a plan view showing a body frame of the same motorcycle. It is a top view which shows the front part of the same motorcycle. Fig. 3 is an enlarged side view showing a main part of the motorcycle. It is an enlarged side view which shows the state which abbreviate | omitted the vehicle body frame from FIG. It is the front view which looked at the attachment structure of the regulator from the vehicle body front.

  Hereinafter, preferred embodiments of the present invention will be described with reference to the drawings. In this specification, “left side” and “right side” refer to the left and right sides as viewed from the driver who rides the motorcycle.

  FIG. 1 is a right side view of a motorcycle according to a first embodiment of the present invention. The motorcycle shown in FIG. 1 is a so-called motocross motorcycle for traveling on rough terrain. A body frame FR of the motorcycle has a front frame portion 1 that forms a front half portion and a rear frame portion 2 that forms a rear half portion.

  The front frame portion 1 includes a main frame 1a extending rearward and obliquely downward from the head pipe 4, and a lower frame 1b extending downward from the head pipe 4 and extending rearward and connected to the lower end of the main frame 1a. ing. As shown in the plan view of FIG. 2, the main frame 1a has a pair of left and right frame pieces 5L and 5R. Most of the frame pieces 5L and 5R are configured to expand in width toward the rear. That is, the space between the left and right frame pieces 5L and 5R is large at the rear. Specifically, the width of the frame pieces 5L and 5R gradually increases from the head pipe 4 to a position directly above a cylinder head 24, which will be described later, of the engine E, and the width is substantially constant behind it.

  As shown in FIG. 1, the frame pieces 5L and 5R constitute the front half of the main frame 1a, and the latter half of the main frame 1a is composed of a pair of left and right swing arm brackets 9. Whereas the frame pieces 5L and 5R are rolled products or cast products, the swing arm bracket 9 is a forged product, and is fixed to the rear ends of the frame pieces 5L and 5R by welding. As shown in FIG. 2, the upper ends of the left and right swing arm brackets 9 are connected by a cross member 7 extending in the left-right direction (vehicle width direction).

  On the other hand, the rear frame portion 2 includes a seat rail 2a that is connected to the rear portions of the frame pieces 5L and 5R of the main frame 1a and extends rearward, and a reinforcing rail 2b. The reinforcing rail 2b is connected to the swing arm bracket 9 below the seat rail 2a and extends rearward and obliquely upward, and the rear end portion is connected to the seat rail 2a.

  A front fork 8 is pivotally supported on the head pipe 4 via a steering shaft (not shown). A steering handle 6 is fixed to the upper end portion of the front fork 8, and a front wheel 10 is attached to the lower end portion of the front fork 8. On the other hand, a swing arm 12 is pivotally supported in a swingable manner around a pivot shaft 19 attached to the swing arm bracket 9. A rear wheel 14 is rotatably supported at the rear end of the swing arm 12. A rear suspension 13 is suspended between the seat rail 2a and the swing arm 12 to absorb an impact applied to the rear wheel 14 from the road surface. The rear suspension 13 of the present embodiment is a so-called single suspension, and is disposed at the center in the vehicle width direction of the vehicle body.

  The engine E is disposed below the main frame 1a and above the lower frame 1b, and is attached to the vehicle body frame FR. The engine E drives the rear wheel 14 via the drive chain 11. The engine E of the present embodiment is a single cylinder engine. However, the engine format is not limited to this. The engine E includes a crankcase 20 that supports a crankshaft 16 that is an engine rotation shaft, a cylinder 22 that protrudes upward from an upper surface of a front portion of the crankcase 20, and a cylinder head 24 above the cylinder 22.

  A fuel tank 15 is disposed above the engine E and supported by the upper portion of the main frame 1a. A fuel pump 17 that supplies fuel to the engine E is mounted on the lower surface of the fuel tank 15. A seat 18 is supported on the seat rail 2 a behind the fuel tank 15. The seat 18 is formed long in the front-rear direction, the front end of the seat 18 is located above the fuel tank 15, and the rear end is located above the rear wheel 14. The upper part of the motorcycle is covered from the outside by a shroud 31, a side cover 33 and a rear cowl 35 from the front.

  An exhaust pipe 25 constituting the front half of the exhaust passage EP is connected to the front surface of the cylinder head 24 of the engine E. The exhaust pipe 25 guides the exhaust of the engine E from the front surface of the cylinder head 24 to the rear through the side of the cylinder head 24 above the crankcase 20 and is connected to an exhaust muffler 26 disposed above the rear wheel 14. Has been. The exhaust muffler 26 constitutes the second half of the exhaust passage EP.

  An intake passage IP for introducing intake air to the engine E is connected to the rear surface of the cylinder head 24. The intake passage IP is provided with a throttle body 28 connected to the rear surface of the cylinder head 24, an air cleaner 30 disposed behind the throttle body 28, and an intake pipe 32 connecting the throttle body 28 and the air cleaner 30. ing. The throttle body 28 includes a fuel injection valve 46 (FIG. 3) described later. The air cleaner 30 is disposed below the seat 18, takes outside air as engine intake air, purifies it, and then guides it to the engine E.

  As shown in FIG. 3, the intake passage IP is disposed on the left side, which is one side of the vehicle width direction. Specifically, the intake port (not shown) of the engine E is located at the center in the vehicle width direction, but the intake passage IP formed in the throttle body 28 is inclined leftward toward the rear. It extends. An intake pipe 32 is connected to the rear end of the throttle body 28, and the intake pipe 32 extends in the front-rear direction on the left side of the vehicle body and is connected to the air cleaner 30. The rear suspension 13 is located on the right side of the intake pipe 32 behind the throttle body 28 and in front of the air cleaner 30 in plan view.

  A regulator 40, which is a kind of electrical component mounted on the motorcycle, is disposed behind the cylinder head inside the right frame piece 5R. In this embodiment, the regulator 40 is arrange | positioned inside the part exposed from the shroud 31 and the side cover 33 in the main frame 1a of FIG. The regulator 40 is a device that converts an alternating current generated by the generator 36 of FIG. 3 into a direct current voltage and controls (rectifies) the direct current. The generator 36 is connected to the left end portion of the crankshaft 16 of the engine E. The motorcycle according to the present embodiment is a battery-less and capacitor-mounted vehicle, and a generator 36 and a capacitor (not shown) are connected via a regulator 40.

  4 is an enlarged right side view showing a portion where the regulator 40 is disposed, and FIG. 5 is a right side view showing a state where the vehicle body frame FR is omitted from FIG. As shown in FIG. 5, the regulator 40 is disposed above the intake passage IP, specifically, above the throttle body 28 and below the fuel tank 15. Above the throttle body 28, no parts having large dimensions in the vehicle width direction are arranged, so that air permeability in the vehicle width direction and the front-rear direction is good. Further, since the fuel tank 15 is disposed below the fuel tank 15, the capacity of the fuel tank 15 can be increased by arranging the regulator as compared with the case where the bottom wall of the fuel tank 15 is recessed upward and the regulator 40 is disposed in the recessed portion. Can be prevented from decreasing.

  Further, the exhaust pipe 25 passes through a lower part away from the regulator 40. That is, the regulator 40 is disposed so as to be spaced above the exhaust pipe 25. Thereby, the influence by the heat of the exhaust pipe 25 can be avoided. Further, the regulator 40 is disposed in front of the cross member 7 and obliquely below and in front of the cross member 7. Thereby, a relatively large space extending in the vehicle width direction along the cross member 7 is formed above the intake passage IP between the left and right frame pieces 5L and 5R and below the front of the cross member 7. Heat can be prevented from spreading around the regulator 40.

  As shown in FIG. 5, the regulator 40 has a plurality of cooling fins 42 that are elongated and extend along the longitudinal direction that is the horizontal direction of FIG. 5. Attachment holes 44 and 44 are formed at both ends of the regulator 40 in the longitudinal direction. Each attachment hole 44 consists of an oval through-hole. A voltage input / output harness 45 is led out from the lower surface of the regulator 40.

  As shown in FIG. 5, the regulator 40 is arranged such that its longitudinal direction is along the extending direction of the main frame 1 a. Specifically, the longitudinal direction of the regulator 40 and the extending direction of the main frame 1a are parallel to each other. The cooling fin 42 faces the inner surface of the right frame piece 5R shown in FIG. Thereby, traveling wind flows between the cooling fin 42 and the frame piece 5R of FIG. 2, and the heat dissipation of the cooling fin 42 is improved. Further, the cooling fin 42 is inclined backward and downward with the regulator 40 shown in FIG. 5 attached to the vehicle body. Thereby, for example, the water when the vehicle body is washed with water flows backward along the cooling fins 42. However, the cooling fin 42 may be inclined forward and downward.

  As shown in FIG. 3, the regulator 40 is disposed on the right side of the vehicle body. Specifically, the regulator 40 is disposed in front of the rear suspension 13 and on the right side of the fuel pump 17. Thereby, the regulator 40 can be disposed avoiding interference with the rear suspension 13 and the fuel pump 17. A fuel hose 48 that connects the fuel pump 17 and the fuel injection valve 46 of the throttle body 28 is disposed on the left side of the fuel pump 17. The fuel injection valve 46 injects fuel into the intake passage IP in the throttle body 28. Further, a space is formed between the fuel pump 17 and the regulator 40 in plan view, and the throttle cable 52 is disposed in this space.

  As shown in FIG. 2, an electric cable 50 extending from an electrical control device (not shown) mounted on the vehicle body is disposed along the left frame piece 5L. For example, the control device is disposed below the seat 18 (FIG. 1). The connection destination of the electric cable 50 is each sensor, actuator, etc. of the engine E. The sensor of the engine E is, for example, an intake pressure sensor, an intake air temperature sensor, and the like, and the actuator is a drive device such as an ignition plug, a fuel injection valve 46, and the like.

  Most of the regulator 40 is located on the right side of the right end of the cylinder head 24 in plan view. As a result, the traveling wind that has passed above and to the right of the cylinder head 24 can easily flow toward the regulator 40, and the heat dissipation of the regulator 40 is improved.

  The regulator 40 shown in FIG. 4 is attached to the inside of one right frame piece 50R via a bracket 55, and is entirely covered with the right frame piece 5R from the outside in a side view. As shown in FIG. 5, the bracket 55 is formed by bending a sheet metal, and has a substantially rectangular shape with the lower side 55a rising upward when attached to the vehicle body. The bracket 55 includes a supported portion 56 supported by the vehicle body frame FR, an attachment portion 58 to which the regulator 40 is attached, and a connecting portion 60 that connects the supported portion 56 and the attachment portion 58.

  As shown in FIG. 6, the supported portion 56 has a surface facing outward in the vehicle width direction, and a welding nut 57 is attached to the back surface. The connecting portion 60 extends from the supported portion 56 in an inward direction in the vehicle width direction. The connecting portion 60 is further bent 90 ° inward in the vehicle width direction, and is then bent 90 ° again to form an attachment portion 58 parallel to the connecting portion 60. An annular spacer member 62 made of sheet metal is welded to the inner surface of the attachment portion 58, and the attachment portion 58 is formed thicker than the other portions by the amount of the spacer member 62.

  Two supported portions 56 shown in FIG. 5 are formed in the lower portion so as to be aligned in a direction inclined by about 30 ° with respect to the front-rear direction, and screw holes that face the left-right direction (vehicle width direction) in each supported portion 56 56a is formed. In the present embodiment, the screw hole 56a is constituted by a welding nut 57 (FIG. 6). In the central portion of the connecting portion 60, a lightening hole 60a is formed. Two attachment portions 58 are formed in the upper portion side by side in a direction inclined by about 30 ° with respect to the front-rear direction, and an insertion hole 58a including a through hole is formed in each attachment portion 58. The insertion hole 58a and the center hole 62a (FIG. 6) of the spacer member 62 coincide.

  As shown in FIG. 4, a first attachment piece 66 protruding downward is integrally formed with the swing arm bracket 9 at the upper end portion (front end portion) of the swing arm bracket 9 by forging. The first mounting piece 66 is formed with a first bolt insertion hole 66a facing in the left-right direction. An engine mounting portion 68 to which the engine bracket 65 is mounted is formed integrally with the swing arm bracket 9 by forging in the vicinity of the first mounting piece 66, specifically, below the first mounting piece 66 in the swing arm bracket 9. Yes. Thus, by providing the first attachment piece 66 separately from the engine bracket 65, the regulator 40 can be attached and detached without removing the engine E.

  The second mounting piece 70 is fixed to the lower end (rear end) of the right frame piece 5R by welding. The second mounting piece 70 protrudes diagonally forward and downward from the right frame piece 5 </ b> R and is positioned diagonally forward and upward of the first mounting piece 66. The second mounting piece 70 is formed with a second bolt insertion hole 70a facing in the left-right direction.

  The attachment of the regulator 40 to the vehicle body will be described. First, the regulator 40 is attached to the bracket 55, and the subassembly is assembled. Specifically, as shown in FIG. 5, a cylindrical grommet 69 made of an elastic material such as rubber is fitted into the insertion hole 58a of the mounting portion 58 on the upper portion of the bracket 55 and the center hole 62a of the spacer member 62. . Grommet 69 has flanges 72, 72 formed at both ends in the axial direction, and is attached to mounting portion 58 of bracket 55 and spacer member 62 between both flanges 72, 72.

  Next, a cylindrical collar 74 is inserted inside the grommet 69. The collar 74 has a collar portion 74a at one end in the axial direction (outside the vehicle body in FIG. 5). In this state, the bolt 75 is inserted from the one end side of the collar 74 into the cylindrical collar 74. Further, the bolt 75 is inserted into the mounting hole 44 of the regulator 40 and then tightened to the nut 76. As described above, the regulator 40 is attached to the bracket 55, and the sub-assembly is configured.

  Subsequently, a sub-assembly including the regulator 40 and the bracket 55 is attached to the vehicle body. Specifically, a kind of fastening member is formed on the first bolt insertion hole 66a of the first mounting piece 66 of the right frame piece 5R shown in FIG. 4 and the second bolt insertion hole 70a of the second mounting piece 70 from the outside of the vehicle body. Are respectively inserted through the bolts 78. The bolt 78 is further tightened in the screw hole 56a of the supported portion 56 of the bracket 55 shown in FIG. Thus, the regulator 40 is attached to the main frame 1a via the bracket 55. Thus, after the subassembly is assembled, the bolts 78 are fastened and attached from the outside of the vehicle body, so workability is good.

  As shown in FIG. 5, the harness 45 extending from the regulator 40 passes through the lightening hole 60 a of the bracket 55. Thus, in the present embodiment, the bracket 55 functions as a guide mechanism for the harness 45 in addition to the attachment of the regulator 40. Thereby, the undesired movement of the harness 45 is restricted.

  According to the above configuration, the regulator 40 is disposed not behind the front portion of the vehicle body but behind the cylinder head 24, so the front portion of the vehicle body becomes slim. Further, since the regulator 40 is disposed on the inner side of the right frame piece 5R and above the intake passage IP behind the cylinder head 24, even in a motorcycle that runs on rough terrain such as for a motocross, it is mud. Hard to stick. As a result, the regulator 40 is less likely to fail. Furthermore, since it is arranged inside the right frame piece 5R, the regulator 40 is unlikely to be damaged even if it falls down. Moreover, since it arrange | positions at the intake side used as low temperature compared with the exhaust side, the temperature rise of the regulator 40 is suppressed.

  Here, as shown in FIG. 2, since the distance between the left and right frame pieces 5L and 5R becomes narrower forward, it is difficult to place the regulator 40 in a space in front of the frame pieces 5L and 5R. . When the regulator 40 shown in FIG. 5 is disposed in front of the position shown in FIG. 5, it interferes with the fuel pump 17, and when it is disposed behind the right frame piece 5 </ b> R, it interferes with the throttle body 28 and the exhaust pipe 25. It becomes a disadvantage against heat.

  Further, since the regulator 40 is disposed above the exhaust pipe 25 with a gap, it is possible to prevent muddy water from the road surface from reaching the regulator 40 by colliding with the exhaust pipe 25. Furthermore, since the upper part of the regulator 40 is covered with the seat 18 and the fuel tank 15, it is possible to prevent rainwater, muddy water, and the like from the upper part from traveling toward the regulator 40.

  A regulator 40 is disposed above the throttle body 28. Between the left and right frame pieces 5L, 5R, traveling wind tends to flow behind the cylinder head 24 and above the throttle body 28. Therefore, the heat dissipation of the regulator 40 is improved.

  A fuel hose 48 is disposed on the left side of the fuel pump 17 shown in FIG. 3, and a regulator 40 is disposed on the right side of the fuel pump 17. As a result, the regulator 40 can be arranged using the space effectively while avoiding interference with the fuel pump 17 and the fuel hose 48. Further, the traveling wind is guided to the regulator 40 without being blocked by the fuel pump 17 and the fuel hose 48.

  The electric cable 50 shown in FIG. 2 is arranged along the left frame piece 5L, and the regulator 40 is attached to the right frame piece 5R. Thereby, while avoiding interference with the electric cable 50, the regulator 40 can be arranged by effectively using the space, and electromagnetic noise generated in the electric cable 50 can be reduced. Further, the traveling wind is guided to the regulator 40 without being obstructed by the electric cable 50.

  The intake passage IP shown in FIG. 3 is disposed on the left side of the vehicle body, and the regulator 40 is disposed on the right side. As a result, the regulator 40 can be arranged using the space effectively while avoiding interference with the intake passage IP. The intake passage IP is attached with a throttle valve driving mechanism (not shown), a throttle cable 52, a throttle pulley (not shown), a fuel injection valve 46, an electric wire connected to the throttle body 28, and the like. However, interference with these devices can also be prevented.

  The regulator 40 is attached to the inside of the right frame piece 5R shown in FIG. 4 via the bracket 55 shown in FIG. 5, and is covered with the right frame piece 5R from the outside in a side view. As a result, the regulator 40 becomes invisible in a side view, and the appearance of the motorcycle is improved. Further, since the regulator 40 is fastened by the fastening member 78 attached from the outside of the right frame piece 5R, the workability is improved because the regulator 40 can be fastened from the outside of the vehicle body.

  As shown in FIG. 5, the bracket 55 is fastened to the regulator 40 via a grommet 69. Thereby, it is possible to suppress the vibration of the vehicle body from being transmitted to the regulator 40. Although an elastic body may be provided between the body frame FR and the bracket 55, the degree of freedom in design is improved by providing the elastic body between the regulator 40 and the bracket 55. Specifically, since the bracket 55 is made of sheet metal, an existing small grommet 69 can be used.

  The present invention is not limited to the above-described embodiment, and various additions, modifications, or deletions can be made without departing from the gist of the present invention. For example, although the motocross type motorcycle has been described in the above embodiment, the electrical component mounting structure of the present invention can be applied to a motorcycle other than the motocross type. Moreover, in the said embodiment, although the electrical component is arrange | positioned on the right side of a vehicle body, you may arrange | position on the left side.

  Furthermore, in the above-described embodiment, a regulator is used as the electrical component 40. However, the present invention is not limited to this. For example, a capacitor, relay, fuse, ignition coil, fall sensor, engine control unit (ECU), etc. Good. Although these electrical components generate heat by themselves, according to the mounting structure of the present invention, it is possible to prevent the temperature around the electrical components from becoming high, thereby preventing the temperature of the electrical components from rising. it can. Therefore, such a thing is also included in the scope of the present invention.

1a Main frame 5L, 5R Frame piece 15 Fuel tank 17 Fuel pump 24 Cylinder head 28 Throttle body 40 Regulator (electrical equipment)
46 Fuel injection valve 48 Fuel hose 50 Electric cable 55 Bracket 69 Grommet (elastic body)
78 Fastening member E Engine EP Exhaust passage IP Intake passage

Claims (6)

An electrical component mounting structure for a motorcycle including a main frame having a pair of left and right frame pieces,
An intake passage is connected to the rear surface of the cylinder head of the engine, an exhaust passage is connected to the front surface of the cylinder head,
The electrical component is disposed inside the one frame piece, behind the cylinder head and above the intake passage, and is attached to the one frame piece.
A fuel tank is disposed above the engine;
A fuel pump is mounted on the lower surface of the fuel tank,
A fuel hose connecting the fuel pump and a fuel injection valve is disposed on one side of the fuel pump,
The electric component mounting structure for a motorcycle, wherein the electric component is disposed on the other side of the fuel pump .   The electric component mounting structure according to claim 1, wherein the electric component is disposed above a throttle body provided in the intake passage. An electrical component mounting structure for a motorcycle including a main frame having a pair of left and right frame pieces,
An intake passage is connected to the rear surface of the cylinder head of the engine, an exhaust passage is connected to the front surface of the cylinder head,
The electrical component is disposed inside the one frame piece, behind the cylinder head and above the intake passage, and is attached to the one frame piece.
A cable extending from a control device mounted on the vehicle body is disposed along one frame piece of the pair of left and right frame pieces,
An electric component mounting structure for a motorcycle in which the electric component is fixed to the other frame piece. An electrical component mounting structure for a motorcycle including a main frame having a pair of left and right frame pieces,
An intake passage is connected to the rear surface of the cylinder head of the engine, an exhaust passage is connected to the front surface of the cylinder head,
The electrical component is disposed inside the one frame piece, behind the cylinder head and above the intake passage, and is attached to the one frame piece.
An electrical component mounting structure for a motorcycle, wherein the intake passage is disposed on one side in the vehicle width direction, and the electrical component is disposed on the other side opposite to the one side. An electrical component mounting structure for a motorcycle including a main frame having a pair of left and right frame pieces,
An intake passage is connected to the rear surface of the cylinder head of the engine, an exhaust passage is connected to the front surface of the cylinder head,
The electrical component is disposed inside the one frame piece, behind the cylinder head and above the intake passage, and is attached to the one frame piece.
The electrical component is attached to the inside of one frame piece via a bracket, and is covered from the outside to the one frame piece in a side view,
The electrical component mounting structure for a motorcycle, wherein the electrical component is fastened by a fastening member attached from the outside of the one frame piece. 6. The electric component mounting structure according to claim 5 , wherein the bracket is made of a plate material and is fastened to the electric component via an elastic body.

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