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Understanding the VAPE charging system

  • Cooger
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78 Yamaha DTE 175 - I believe everything to be stock as it sits.  I purchased a VAPE charging system to improve light brightness and overall dependability.  I have installed the rotor, the flywheel, set the timing at 1.7mm BFTDC, installed the coil, and working on modifying the stock regulator mount behind the airbox to accommodate the new vape regulator.  

I'm really not a mechanic -  learning as I go and this is my first restoration.  The instructions are fairly understandable and states,"This system is designed to replace the stock dynamo/alternator & ignition systems in vintage and classic motorcycle....".  

I'm understanding that to mean the VAPE system will eliminate the stock regulator, rectifier and CDI - is this correct?

I appreciate the help!

Bob
11 Jun 2022 14:29 #1

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Replied by MarkT on topic Understanding the VAPE charging system

Yes, you are correct. 

It's also not a "split" system like stock.  You can leave the stock rectifier in place and have everything operate like stock...  headlight power only available with engine running. 

or bypass the stock rectifier like they say and then the headlight will be powered by battery and controlled by the handlebar on-off switch (I think 78 still has on- off on handlebar)
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
11 Jun 2022 14:57 #2

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Replied by RT325 on topic Understanding the VAPE charging system

Does it now become 12 volt [bulb change all around] or still staying 6volt.
11 Jun 2022 15:07 #3

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Replied by Cooger on topic Understanding the VAPE charging system

Thanks. I didn't know that about the regulator.
11 Jun 2022 18:19 #4

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Replied by Cooger on topic Understanding the VAPE charging system

Yes - it does become a 12V system and I will be changing all the bulbs and the battery as well....
11 Jun 2022 18:21 #5

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Replied by MarkT on topic Understanding the VAPE charging system

REGULATOR from stock system MUST be removed. 

I said rectifier. 

Come to think of it, that's probably why they have you gut the stock stuff because people get confused with electrical.

Using VAPE on that model is slick though if you leave rectifier and connect charging at the stock stator harness....  and necessary on later models unless you add a headlight switch which I find hokey. 
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
11 Jun 2022 18:56 #6

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Replied by Cooger on topic Understanding the VAPE charging system

Mark - Thank for the guidance.  I am getting a nice bright spark.

1.  I installed the coil as directed - plugging it in to the generator as directed, it leaves an unattached  blue wire, coming from the coil with a connector - from the directions, it looks like I need to wire that blue wire it in to the ignition switch, so it quits running when I turn the key off -  how do I identify that wire?

2.  I removed the stock voltage regulator,  and replaced it with the regulator/rectifier that came in the kit.  I attached it to the back of the airbox like the original.  I then  plugged in the 2 Black AC wires and wired the red and brown wires from the regulator in to battery pos/neg as stated in the directions.

3..  It comes with a 12V SPD Kromeriz relay for the kill switch - no real instructions on this component. The relay has:   
     
 - a blue wire with a white connector - ???     
 - a black wire with no connector - ???     
 - a brown wire with a circle connector - ??

Can you give me some guidance on this?

Many Thanks!

Bob

 
 
 


 
25 Jun 2022 08:47 #7

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Replied by shyted on topic Understanding the VAPE charging system

Blue wires for the kill switch. I think it states that in the on line instructions.
25 Jun 2022 11:42 #8

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Replied by MarkT on topic Understanding the VAPE charging system

You don't need the relay for the kill switch..  Hook blue from VAPE coil to original Yamaha kill wire that killed ignition.  Black wire that grounds with key off. 

(Grounding blue kills spark)
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
25 Jun 2022 12:52 #9

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