This subject just keeps rearing its ugly head. Got in a hurry the other day and left the side stand down again. There is a lot of information found on the various forums about side stand indicator lights and a few with wiring mods that do most of what an OEM installed system does. When I find a new thread on this issue, I generally peruse it and the associated the recommended threads to read to see what has been done and is available.
I found a thread the other night and one of the posts directed me to an NGW thread on a side stand Interlock by Gregforesi. He has done a wiring/side stand interlock mod to his bike that is quite well done. I looked at his schematics and unfortunately I have yet to fully understand the use of all the relays and how it works; however, I do understand his basic schematic. His thread is at: https://www.ngwclub.com/forum/viewtopic. ... +interlock
The item that controls the start/stop of the bike due to the side stand is the engine stop switch. Controlling the power to this switch is how the side stand interlock/indicating light system works. Power is controlled by using a relay that is controlled by a 12 VDC switched power circuit and grounded at three different points in the electrical system, these being:
side stand switch
neutral switch
clutch switch
Using the logic from Gregforesi's schematic, anytime the bike's ignition is turned on and the relay-R1 that controls the side stand interlock/indicator light system is not energized, the bike will turn over but will not start.
I also have the engine stop switch used to energize the accessory fuse block I installed. If the side stand interlock/indicator light circuit is not energized I will have no accessory power and there will be no power to the coils - should not be an issue.
The side stand indicator light can be a solid on or flashing light, your preference.
The 12 VDC switched power circuit to power real-R1 can be from any switched source.
When the side stand interlock/indicator light circuit is not powered and the ignition switch is on, the bike will turn over but not start.
I did take Gregforesi's initial drawing and do the same to the schematic for my '85 LTD. I find that the key to this setup is the grounding of the relay used to power the side stand interlock/indicator light system. I also refreshed my memory about how you would want the system to work that Wingadmin from Goldwing Docs detailed in one his posts. Wingadmin's logic sequence is:
Neutral: ignition enabled, starter enabled
In gear with kickstand down: ignition shut off, starter disabled
In gear with kickstand up: ignition enabled, starter disabled
In gear with clutch in and kickstand up: ignition enabled, starter enabled
In gear with clutch in and kickstand down: ignition shut off, starter disabled
Using all this info, and finally finding a schematic that works for almost all of the above logic, here is the modified schematic for my '85:
I have labeled relay-R1. The coil is between pins 85/86. The power supply to the engine shutoff switch is between pins 30/87. The switch between pins 30/87 is normally open. When power is supplied to the coil between pins 85/86, the switch between pins 30/87 closes supplying power to the engine stop switch
When you turn on the ignition switch on with the side stand down, the side stand interlock/indicator light circuit is energized by a switched 12 VDC power circuit and relay-R1 is grounded through the neutral switch at point #1. The connection is after the clutch diode that ensures there is no conflict with the clutch switch, and the side stand switch is only grounding the side stand indicator light. This part of the system meets the requirement of:
Kickstand down, in neutral = start/run
Kickstand down, in gear = no start, no run
The side stand interlock/indicator light circuit has a ground point through the clutch switch. This will allow you to start the bike in gear with the side stand down, but will not allow you to ride away with the kickstand down because once you release the clutch to ride away the ground for relay-R1 will be lost de-energizing the side stand interlock/indicator light circuit.
With the kickstand up, ignition switch on, and the bike in neutral, the bike will start because the side stand interlock/indicator light circuit is energized by the switched 12 VDC power circuit and relay-R1 is grounded through the side stand switch and the neutral switch. With the side stand in the up position the side stand indicator light is now off. The bike will continue to run when shifted into first or another gear because the side stand interlock/indicator light circuit relay-R1 is still grounded through the side stand switch. This satisfies:
Kickstand up, in neutral = start/run
The next part of the logic sequence that I had to address was:
Kickstand up, in gear, clutch out = run, not start
This is addressed by grounding relay-R1 of the circuit through the side stand switch.
The last part of the logic sequence to be addressed:
Kickstand up, in gear, clutch in = start/run
This is where I decided the side stand interlock/indicator light circuit had to be grounded through the clutch switch. This last part of the logic sequence is accomplished by having the side stand interlock/indicator light circuit grounded either through the side stand switch or the clutch switch. Not too sure if the ground through the clutch switch is required. If not, it will simplify the wiring requirements.
Gregforesi came up with an elegant solution for a side stand switch. Here is his picture of the side stand switch installtion:
https://www.ngwclub.com/forum/viewtopic. ... +interlock
The side stand is not very conducive to a nice install of a side stand switch as it is approximately 1" from the bike frame in the up position.
Found a waterproof magnetic switch on Ebay.ca (CDN version) $26.00 free shipping. The product is Directed Electronics Inc 8600 Micro Magnetic Switch:
Specs:
Micro Magnetic Switch. Brand: Directed DEI8600. Compact, Magnetic Switch. Normally Closed When Contacts Are Apart. Product Class: 12 Volt Security/Starters.
I would mount this switch so the piece with the wires would be on the bike frame and the other piece on the side stand. If I read the specs correct, when the side stand is down and the contacts are apart, the indicator light would be on and the bike should not start unless in neutral.
Started on the wiring for the side stand interlock/indicator light circuit. Finding the right wires in the maze of wire harness is a feat in itself. I started with wiring into the clutch diode wiring as it is the easiest to get at. When I was doing work on the clutch diode wiring I removed the clutch diode from the connector so that soldering and shrink tube heating would not affect the diode.
After each step I put the clutch diode back into the connector and ensured the bike still started. Did not want to get to a point where the bike would not start.
The clutch diode on the '85 LTD is at the rear of the bike and shares the same placement as the saddlebag connections:
The arrow points to the clutch diode.
The side stand interlock/indicator light circuit has the wire splice after the clutch diode and before the neutral switch. The wire colour is light green/red stripe.
The wire that looks like it is white with a red stripe is actually light green with a red stripe.
I have started taking the switch with the engine stop switch attached apart so I can splice into the necessary wires. I first removed the front brake MC from the handle bars. Next was to take the switch casing apart that houses the engine stop switch. This is proving to be more challenging because the throttle cables are not allowing me to just take the switch apart and work on it. Will have to see what is required to possibly disconnect the throttle cables so I can get at the wiring.
The wire needed for the circuit will be left coiled up for the time being as I still have to get the side stand switch.
More to follow.
I found a thread the other night and one of the posts directed me to an NGW thread on a side stand Interlock by Gregforesi. He has done a wiring/side stand interlock mod to his bike that is quite well done. I looked at his schematics and unfortunately I have yet to fully understand the use of all the relays and how it works; however, I do understand his basic schematic. His thread is at: https://www.ngwclub.com/forum/viewtopic. ... +interlock
The item that controls the start/stop of the bike due to the side stand is the engine stop switch. Controlling the power to this switch is how the side stand interlock/indicating light system works. Power is controlled by using a relay that is controlled by a 12 VDC switched power circuit and grounded at three different points in the electrical system, these being:
side stand switch
neutral switch
clutch switch
Using the logic from Gregforesi's schematic, anytime the bike's ignition is turned on and the relay-R1 that controls the side stand interlock/indicator light system is not energized, the bike will turn over but will not start.
I also have the engine stop switch used to energize the accessory fuse block I installed. If the side stand interlock/indicator light circuit is not energized I will have no accessory power and there will be no power to the coils - should not be an issue.
The side stand indicator light can be a solid on or flashing light, your preference.
The 12 VDC switched power circuit to power real-R1 can be from any switched source.
When the side stand interlock/indicator light circuit is not powered and the ignition switch is on, the bike will turn over but not start.
I did take Gregforesi's initial drawing and do the same to the schematic for my '85 LTD. I find that the key to this setup is the grounding of the relay used to power the side stand interlock/indicator light system. I also refreshed my memory about how you would want the system to work that Wingadmin from Goldwing Docs detailed in one his posts. Wingadmin's logic sequence is:
Neutral: ignition enabled, starter enabled
In gear with kickstand down: ignition shut off, starter disabled
In gear with kickstand up: ignition enabled, starter disabled
In gear with clutch in and kickstand up: ignition enabled, starter enabled
In gear with clutch in and kickstand down: ignition shut off, starter disabled
Using all this info, and finally finding a schematic that works for almost all of the above logic, here is the modified schematic for my '85:
When you turn on the ignition switch on with the side stand down, the side stand interlock/indicator light circuit is energized by a switched 12 VDC power circuit and relay-R1 is grounded through the neutral switch at point #1. The connection is after the clutch diode that ensures there is no conflict with the clutch switch, and the side stand switch is only grounding the side stand indicator light. This part of the system meets the requirement of:
Kickstand down, in neutral = start/run
Kickstand down, in gear = no start, no run
The side stand interlock/indicator light circuit has a ground point through the clutch switch. This will allow you to start the bike in gear with the side stand down, but will not allow you to ride away with the kickstand down because once you release the clutch to ride away the ground for relay-R1 will be lost de-energizing the side stand interlock/indicator light circuit.
With the kickstand up, ignition switch on, and the bike in neutral, the bike will start because the side stand interlock/indicator light circuit is energized by the switched 12 VDC power circuit and relay-R1 is grounded through the side stand switch and the neutral switch. With the side stand in the up position the side stand indicator light is now off. The bike will continue to run when shifted into first or another gear because the side stand interlock/indicator light circuit relay-R1 is still grounded through the side stand switch. This satisfies:
Kickstand up, in neutral = start/run
The next part of the logic sequence that I had to address was:
Kickstand up, in gear, clutch out = run, not start
This is addressed by grounding relay-R1 of the circuit through the side stand switch.
The last part of the logic sequence to be addressed:
Kickstand up, in gear, clutch in = start/run
This is where I decided the side stand interlock/indicator light circuit had to be grounded through the clutch switch. This last part of the logic sequence is accomplished by having the side stand interlock/indicator light circuit grounded either through the side stand switch or the clutch switch. Not too sure if the ground through the clutch switch is required. If not, it will simplify the wiring requirements.
Gregforesi came up with an elegant solution for a side stand switch. Here is his picture of the side stand switch installtion:
https://www.ngwclub.com/forum/viewtopic. ... +interlock
The side stand is not very conducive to a nice install of a side stand switch as it is approximately 1" from the bike frame in the up position.
Found a waterproof magnetic switch on Ebay.ca (CDN version) $26.00 free shipping. The product is Directed Electronics Inc 8600 Micro Magnetic Switch:
Micro Magnetic Switch. Brand: Directed DEI8600. Compact, Magnetic Switch. Normally Closed When Contacts Are Apart. Product Class: 12 Volt Security/Starters.
I would mount this switch so the piece with the wires would be on the bike frame and the other piece on the side stand. If I read the specs correct, when the side stand is down and the contacts are apart, the indicator light would be on and the bike should not start unless in neutral.
Started on the wiring for the side stand interlock/indicator light circuit. Finding the right wires in the maze of wire harness is a feat in itself. I started with wiring into the clutch diode wiring as it is the easiest to get at. When I was doing work on the clutch diode wiring I removed the clutch diode from the connector so that soldering and shrink tube heating would not affect the diode.
After each step I put the clutch diode back into the connector and ensured the bike still started. Did not want to get to a point where the bike would not start.
The clutch diode on the '85 LTD is at the rear of the bike and shares the same placement as the saddlebag connections:
The arrow points to the clutch diode.
The side stand interlock/indicator light circuit has the wire splice after the clutch diode and before the neutral switch. The wire colour is light green/red stripe.
I have started taking the switch with the engine stop switch attached apart so I can splice into the necessary wires. I first removed the front brake MC from the handle bars. Next was to take the switch casing apart that houses the engine stop switch. This is proving to be more challenging because the throttle cables are not allowing me to just take the switch apart and work on it. Will have to see what is required to possibly disconnect the throttle cables so I can get at the wiring.
The wire needed for the circuit will be left coiled up for the time being as I still have to get the side stand switch.
More to follow.