Author Topic: Stumped on the ignition circuit  (Read 618 times)

0 Members and 1 Guest are viewing this topic.

dgurovich

  • Danilo Gurovich
  • Scooter
  • **
  • Posts: 23
  • Karma: 0
  • Shift on the right
on: November 29, 2020, 07:24:45 pm
Hmmm.

I have the bike all back together, put gas in it and the starter is working perfectly, except no spark.  I did the checks per the manual and the resistance is correct, there is power to the "+" side of the coil, and that's where I"m stumped.

I have too many old bikes that just have points and I can diagnose quite rapidly.  This one is different. 

I installed a new switch on the handlebar, so I'm wondering if I got a wire crossed there.  I see power going through the ammeter, and all three yellow wires to the alternator are powered up.  So what the heck am I missing? 

Is it possible to put the pickup in backwards in the primary cover?  It seems like it only goes in one way, but.....
1966 Matchless G80
1959 Velocette MSS/Thruxton
2019 RE Interceptor
1961 Matchless G12 CSR
2006 RE Bullet Electra
2011 Vespa 300GTV
2006 Vespa 200L


Adrian II

  • Grand Gearhead
  • *****
  • Posts: 2,436
  • Karma: 0
  • Sharing my ignorance with anyone who needs it
Reply #1 on: November 29, 2020, 08:13:01 pm
I posted the link to the workshop manual, I would point out that this does include factory wiring diagrams.  ;)

A.
Grumpy Brit still seeking 500 AVL Bullet perfection! Will let you know if I get anywhere near...


dgurovich

  • Danilo Gurovich
  • Scooter
  • **
  • Posts: 23
  • Karma: 0
  • Shift on the right
Reply #2 on: November 29, 2020, 09:31:48 pm
I went through the manual and did the resistance checks, but it doesn't show how the sensor fits in the housing. There's power to everything, so I'm thinking that might be the culprit. 
1966 Matchless G80
1959 Velocette MSS/Thruxton
2019 RE Interceptor
1961 Matchless G12 CSR
2006 RE Bullet Electra
2011 Vespa 300GTV
2006 Vespa 200L


Adrian II

  • Grand Gearhead
  • *****
  • Posts: 2,436
  • Karma: 0
  • Sharing my ignorance with anyone who needs it
Reply #3 on: November 30, 2020, 10:50:57 am
The TCI trigger unit bolts to the outer primary chain case along with the alternator stator.

A.
Grumpy Brit still seeking 500 AVL Bullet perfection! Will let you know if I get anywhere near...


dgurovich

  • Danilo Gurovich
  • Scooter
  • **
  • Posts: 23
  • Karma: 0
  • Shift on the right
Reply #4 on: November 30, 2020, 02:12:46 pm
Thanks!  That's the picture I need.
1966 Matchless G80
1959 Velocette MSS/Thruxton
2019 RE Interceptor
1961 Matchless G12 CSR
2006 RE Bullet Electra
2011 Vespa 300GTV
2006 Vespa 200L


dgurovich

  • Danilo Gurovich
  • Scooter
  • **
  • Posts: 23
  • Karma: 0
  • Shift on the right
Reply #5 on: December 05, 2020, 04:52:05 pm
OK.  I'm still stumped.  I want to isolate the ignition circuit, but since it's electronic, I have yet to see a wiring diagram for it.  The only drawings I have seen are for the contact breaker, or they show all the wiring BUT the iginition circuit!

This is such a nice bike, and this is the last piece of the puzzle to get it on the road.  Please help!
1966 Matchless G80
1959 Velocette MSS/Thruxton
2019 RE Interceptor
1961 Matchless G12 CSR
2006 RE Bullet Electra
2011 Vespa 300GTV
2006 Vespa 200L


dgurovich

  • Danilo Gurovich
  • Scooter
  • **
  • Posts: 23
  • Karma: 0
  • Shift on the right
Reply #6 on: December 05, 2020, 09:30:57 pm
OK.  Spent the day running down wires and checking everything. It has spark!  Loose fittings.
1966 Matchless G80
1959 Velocette MSS/Thruxton
2019 RE Interceptor
1961 Matchless G12 CSR
2006 RE Bullet Electra
2011 Vespa 300GTV
2006 Vespa 200L


Adrian II

  • Grand Gearhead
  • *****
  • Posts: 2,436
  • Karma: 0
  • Sharing my ignorance with anyone who needs it
Reply #7 on: December 05, 2020, 10:32:25 pm
I'm glad you got it running, but once again, here is the link to download the workshop manual.

https://accessories.hitchcocksmotorcycles.com/core/media/media.nl?id=238414&c=1062795&h=8e3c66022e672056498b&_xt=.pdf

Quote
I want to isolate the ignition circuit, but since it's electronic, I have yet to see a wiring diagram for it.  The only drawings I have seen are for the contact breaker, or they show all the wiring BUT the ignition circuit!

ALL THE WIRING DIAGRAMS ARE IN SECTION 07-3 AND 07-4 ON PAGES 149 AND 150. THE IGNITION CIRCUIT BY ITSELF IS 07-3 ON PAGE 149.

Now can you find it?

A.
Grumpy Brit still seeking 500 AVL Bullet perfection! Will let you know if I get anywhere near...


dgurovich

  • Danilo Gurovich
  • Scooter
  • **
  • Posts: 23
  • Karma: 0
  • Shift on the right
Reply #8 on: December 06, 2020, 03:35:52 am
Thanks.  I kept looking in section 11, the one titled "Electricals".  I then looked at the Sniden book which had a different set of diagrams.  Appreciate the detail!
1966 Matchless G80
1959 Velocette MSS/Thruxton
2019 RE Interceptor
1961 Matchless G12 CSR
2006 RE Bullet Electra
2011 Vespa 300GTV
2006 Vespa 200L


Citrus

  • Scooter
  • **
  • Posts: 21
  • Karma: 0
Reply #9 on: December 19, 2020, 08:58:41 pm
It may be the ignition module itself that has failed ?
If it points to that - yell out as I have a couple spare


Adrian II

  • Grand Gearhead
  • *****
  • Posts: 2,436
  • Karma: 0
  • Sharing my ignorance with anyone who needs it
Reply #10 on: December 20, 2020, 03:53:20 pm
Our friend now HAS a spark, he says, see the post above. That said, it's a kind offer.

A.
Grumpy Brit still seeking 500 AVL Bullet perfection! Will let you know if I get anywhere near...