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VAPE WIRING HELP, PLEASE!

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VAPE WIRING HELP, PLEASE! was created by RT1

Good afternoon all.I'm installing a new VAPE AC 12v system onto my 1971 RT1.I need help on two questions1st:  Original rectifier has two wires - a red (to battery plus)and a white to the main switch. The new VAPE rectifier/regulator instructions state that the red wire goes to battery plus and the brown goes to ground. QUESTION :can or should the brown wire connect to the original white wire to the switch?Next question: the blue/white wire coming from the VAPE coil is designed to go to a kill switch (not on  this biked) or to the main switch. Not clear on what wire to connect to for this blue/white wire - or should we leave it disconnected? Any insights would be appreciated. 
'68 DT1, '71 RT1, '71 JT1 (x2), '72 AT2 (x2), '74 DT250A, '75 XS650, '54 BSA C11G, '70 Honda CT70, '73 Hodaka Combat Wombat, '05 Moto-Guzzi Breva, '15 Triumph Tiger, +++

"We are mere custodians of mechanical things. Our job it to care for them, improve them and pass them on to others.” - Peter Egan
03 Aug 2023 14:58 #1

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Replied by MarkT on topic VAPE WIRING HELP, PLEASE!

You connect the VAPE blue/white kill wire to the black/white to the key switch that went to the original ignition coil. 

VAPE regulator/rectifier brown goes to a good ground.  Nowhere else

On your other question, there are several ways to wire the VAPE.  I like to do it so the system works like it did "stock" where the headlight only comes on with key in "lights" position and engine running.  Simply connect the Red from the VAPE regulator/rectifier to the green, green/red, and yellow that the original stator wires connected to.  Done.  If you leave the original rectifier in place, the headlight will only work with key in the "lights on" position and engine running.  . 

Alternatively, you do the above and remove the stock rectifier (connect the stock rectifier red to the stock rectifier white).  Now the headlight will run off the battery when key is in "lights on" position, engine does not need to be running.  

If you want to design your own wiring arrangement, the things to keep in mind are VAPE red needs to connect to battery + for the original battery powered accessories.  Original yellow at stator needs to be connected to power (i.e. battery +) for the original "engine powered" items to work...  headlight and gauge illumination. 
1963 YG1-T, 1965 MG1-T, Allstate 250, 1970 CT1b, 1971 R5, 1973 AT3MX, 1974 TS400L, 1975 RD350, 1976 DT175C, 1976 Husqvarna 250CR, 1981 DT175G, 1988 DT50, 1990 "Super" DT50, 1991 RT180, 2017 XT250
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Last edit: 04 Aug 2023 06:25 by MarkT.
04 Aug 2023 06:18 #2

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Replied by RT1 on topic VAPE WIRING HELP, PLEASE!

Additional question has arisen....

The original magneto harness tied into the wiring harness along the backbone of the frame.
There are four wires: green, yellow, black, and green/red.

VAPE instructions do not address what is to be done with these four disconnected wires.

Email to VAPE remains unanswered and help from someone that has a firm understanding would be greatly appreciated.

I have been unable to find my specific questions addressed in any of the threads I've looked up and although willing to keep digging, the website is giving me issues in that when I click on an old thread it disappears :(
'68 DT1, '71 RT1, '71 JT1 (x2), '72 AT2 (x2), '74 DT250A, '75 XS650, '54 BSA C11G, '70 Honda CT70, '73 Hodaka Combat Wombat, '05 Moto-Guzzi Breva, '15 Triumph Tiger, +++

"We are mere custodians of mechanical things. Our job it to care for them, improve them and pass them on to others.” - Peter Egan
04 Aug 2023 06:24 #3

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Replied by MarkT on topic VAPE WIRING HELP, PLEASE!

I answered your questions in post #2. (Edited it a couple times for clarity)
1963 YG1-T, 1965 MG1-T, Allstate 250, 1970 CT1b, 1971 R5, 1973 AT3MX, 1974 TS400L, 1975 RD350, 1976 DT175C, 1976 Husqvarna 250CR, 1981 DT175G, 1988 DT50, 1990 "Super" DT50, 1991 RT180, 2017 XT250
04 Aug 2023 06:26 #4

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Replied by RT1 on topic VAPE WIRING HELP, PLEASE!

Mark

This is wonderfully helpful.... I think I should be able to follow.

There is however a "but"

There is no evidence of a "black/white" wire that I can see in the location of the old rectifier/regulator or coming out of the wiring harness.

VAPE indicates the their blue/white coming off the coil goes to a kill switch.... which the bike doesn't have.  Can this simply be left disconnected?

As we move forward I may have additional questions (I hope not) but will follow these instructions till then.

Thank you again Mark!

 
'68 DT1, '71 RT1, '71 JT1 (x2), '72 AT2 (x2), '74 DT250A, '75 XS650, '54 BSA C11G, '70 Honda CT70, '73 Hodaka Combat Wombat, '05 Moto-Guzzi Breva, '15 Triumph Tiger, +++

"We are mere custodians of mechanical things. Our job it to care for them, improve them and pass them on to others.” - Peter Egan
04 Aug 2023 06:36 #5

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Replied by RT1 on topic VAPE WIRING HELP, PLEASE!

I think we were typing at the same time

I again thank you.
'68 DT1, '71 RT1, '71 JT1 (x2), '72 AT2 (x2), '74 DT250A, '75 XS650, '54 BSA C11G, '70 Honda CT70, '73 Hodaka Combat Wombat, '05 Moto-Guzzi Breva, '15 Triumph Tiger, +++

"We are mere custodians of mechanical things. Our job it to care for them, improve them and pass them on to others.” - Peter Egan
04 Aug 2023 06:44 #6

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Replied by MarkT on topic VAPE WIRING HELP, PLEASE!

What I said was:  "You connect the VAPE blue/white kill wire to the black/white to the key switch that went to the original ignition coil. "  (Not rectifier)

If you leave blue/white disconnected, you will have spark but no way to kill engine except by stalling it.  Kind of dangerous on a 360.

P.S.  Stock bike only had a rectifier (diode).  Not a rectifier/regulator like the VAPE does. 
1963 YG1-T, 1965 MG1-T, Allstate 250, 1970 CT1b, 1971 R5, 1973 AT3MX, 1974 TS400L, 1975 RD350, 1976 DT175C, 1976 Husqvarna 250CR, 1981 DT175G, 1988 DT50, 1990 "Super" DT50, 1991 RT180, 2017 XT250
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04 Aug 2023 06:53 #7

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Replied by RT1 on topic VAPE WIRING HELP, PLEASE!

MarkT 

I'm about certain your instructions have gotten me over the hump.

I just need further detail regarding the VAPE Coil blue/white wire connecting to the ignition switch black/white wire.
That black/white wire becomes a black ground wire at the mult-pin connector located in the harness near the rectifier and coil.  So, that'd make it a ground, Correct?
So, my question is -  do I disconnect the black/white wire from the multi-pin connector and then connect it directly to the blue VAPE Coil wire?  Or, do I simply introduce it to the black/white wire AND LEAVING the black/white connected to black ground wire?

And, if I read your instructions correctly and I wish for the lights to work as originally designed - only with the motor running - I will simply leave the original rectifier in-place and undisturbed.  Hence, both the new Vape  rectifier/regulator AND the original Yamaha rectifier functioning.  Yes?

Thank you - I think I'm very close to a successful installation.   

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'68 DT1, '71 RT1, '71 JT1 (x2), '72 AT2 (x2), '74 DT250A, '75 XS650, '54 BSA C11G, '70 Honda CT70, '73 Hodaka Combat Wombat, '05 Moto-Guzzi Breva, '15 Triumph Tiger, +++

"We are mere custodians of mechanical things. Our job it to care for them, improve them and pass them on to others.” - Peter Egan
04 Aug 2023 08:48 #8

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Replied by MarkT on topic VAPE WIRING HELP, PLEASE!

A couple more things...  if you read any of the threads you probably came across the fact that sometimes Yamaha used a plain black wire instead of black/white in the main harness. 

The black you mentioned at the stator harness (with the green, green/red, and yellow) is technically a black/white.  You won't use it.  Leave it hanging and insulated from touching anything.  Do not ground that black wire.

The little wire the original ignition coil plugs into technically should also be black/white.  Sometimes the small wire out of the coil with the bullet connector is black/white and the harness wire it plugs with the bullet connector into are both black/white, sometimes one is, sometimes both are solid black. 

Also sometimes the black/white wire from the key switch plugs in near the ignition coil, sometimes the key switch black/white plugs in to the harness someplace else.  I can't see what you're working on.  In any case, you can plug the VAPE blue/white into where the small wire of the stock Yamaha ignition coil plugged in....  that wire will ground when key is off to kill spark and should be close to where you're mounting the VAPE ignition coil/module. 
1963 YG1-T, 1965 MG1-T, Allstate 250, 1970 CT1b, 1971 R5, 1973 AT3MX, 1974 TS400L, 1975 RD350, 1976 DT175C, 1976 Husqvarna 250CR, 1981 DT175G, 1988 DT50, 1990 "Super" DT50, 1991 RT180, 2017 XT250
04 Aug 2023 08:54 #9

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Replied by RT1 on topic VAPE WIRING HELP, PLEASE!

Mark - I can't post pics 

With the inconsistent variants, I wish to avoid any additional confusion. Can I pm pics to you?  Or is that not working either?

If not, I will try to rephrase my question so it is clearer.

Please let me know

This is very close to completion.  But like a lot of things, it seems as if the last 10% of the job is taking 90% of the time.

Thank you 
'68 DT1, '71 RT1, '71 JT1 (x2), '72 AT2 (x2), '74 DT250A, '75 XS650, '54 BSA C11G, '70 Honda CT70, '73 Hodaka Combat Wombat, '05 Moto-Guzzi Breva, '15 Triumph Tiger, +++

"We are mere custodians of mechanical things. Our job it to care for them, improve them and pass them on to others.” - Peter Egan
04 Aug 2023 09:15 #10

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