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Makotosun

Key switch & kill switch not working

  • Jewelkutter
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Replied by Jewelkutter on topic Key switch & kill switch not working

I just quadruple checked all those tests , no more hair left , this is a bit tricky I gotta say .
13 Jun 2023 09:58 #91

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Replied by automan on topic Key switch & kill switch not working

Jewell, take your leads and connect them on the meter.

Should read a solid 0.00 to .2 ohms.

cliff
13 Jun 2023 10:25 #92

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Replied by MarkT on topic Key switch & kill switch not working

John,  thanks for doing all the tests.  When I get a break I will try to respond.
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
13 Jun 2023 10:58 #93

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Replied by Jewelkutter on topic Key switch & kill switch not working

Hi Cliff, I get 0.00 when touching probes together 
13 Jun 2023 11:02 #94

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Replied by Jewelkutter on topic Key switch & kill switch not working

Thank You Mark, your the one testing , I'm just trying to do what you are telling me , extremely grateful your walking me through this 
A#1 in my book
13 Jun 2023 11:04 #95

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Replied by Jewelkutter on topic Key switch & kill switch not working

I'm still wondering about how much more worn the contact plate is inside the key switch compaired to the bikes original contact plate/key switch top top half
Last edit: 13 Jun 2023 11:42 by Jewelkutter. Reason: Partial Double of last post
13 Jun 2023 11:41 #96

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Replied by Jewelkutter on topic Key switch & kill switch not working

I also tested black wire on main harness that plugs into little wire on coil to black wire at stator plug black and got 0.00
I also tested the key switch by placing the black probe to black other probe to b/w inside the plug , key off 0.00 key on 1 .
tested the red and brown that way too and got the same results
Last edit: 13 Jun 2023 13:01 by Jewelkutter. Reason: Added more
13 Jun 2023 12:37 #97

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Replied by MarkT on topic Key switch & kill switch not working

I still get 0.00 when I touch probes together.  Great, good to test that...  so when you get 0.00 it means the places you are touching the probes to are connected electrically to each other

 Ok, 1 probe on  b/w at key connector other probe at black that plugs into small wire at coil ,reading is 1 . It was 0.00 before i unplugged everything,  and i just plugged kill switch and stator plug back in, took a reading b/w at key connector other probe to wire that plugs into little wire at coil and got 0.00 in off position and 1 in on position on the right handlebar kill switch  (just to check myself) .I have to think about this one.  It doesn't make sense to me that the b/w at key connector on harness and harness wire that ignition coil plugs into would connect and disconnect like that.  It should be a solid connection all the time unless there's a problem in the harness?  It would be very helpful to have pictures of the probe placement, etc for these tests.

Ok, 1 probe to the solid black in key connector other probe to engine case I get 0.00  Perfect!  That should be a ground and it is.

Ok, 1 probe to the b/w at the handlebar kill switch and other probe to wire that plugs into little wire attached to coil in the run position I get 1., In the off position I get 0.00.  I'm still not understanding how you keep talking about turning switches on and off when the switches should be completely out of the picture?  We are testing the harness b/w wire the switch plugs into..  You can take the switches off the bike and put them in a box and put the box a mile away from the bike!   So I'm not sure what this means right now...  it could be fine.

Ok, probe B/w in key switch plug , probe b/w at kill switch reading is 1. In both run and off positions.  Again, with the switch run and off.  No switches should be connected and the test should be the b/w in the harness and the b/w the handlebar switch plugs into.  This sounds like it could indicate an issue in the harness?  Need pictures of your test method probe placement to be sure.  As a said in my previous post the reading should be 0.00

Ok, Probe to black wire in key connector other probe to crankcase I get 0.00  I may have repeated myself...  yes this is what is expected.  The black should have a connection to engine case.

The fact that the b/w at key does not stay connected to black wire ignition coil plugs into indicates a possible issue... 

I'm out of time...  thanks for your efforts...  I will try to post how to post pictures a little later.
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
13 Jun 2023 12:50 #98

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Replied by Jewelkutter on topic Key switch & kill switch not working

On the b/w the kill switch plugs into, My bad I wasn't touching the right wire , you meant the one that the kill switch plugged into inside the headlight bucket, wicked sorry for that !
I just tested , when I probe the b/w in the headlight that the kill plugs into and b/w at key switch connector and I get 0.00  if it probe the black at key connector and b/w in headlight I get 1
Then  I checked  1 probe into the black female that plugs into little wire on the coil. and other into the b/w the kill plugs into on the main harness in the headlight, reading of 1.
I am sorry MarkT, I feel more dumb than ever
Last edit: 13 Jun 2023 13:36 by Jewelkutter. Reason: My confusion
13 Jun 2023 13:20 #99

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Replied by MarkT on topic Key switch & kill switch not working

Don't feel dumb!  It's very confusing for me too!
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
13 Jun 2023 13:53 #100

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