Author Topic: K2K Magneto - no spark  (Read 839 times)

Offline Patbradley

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K2K Magneto - no spark
« on: 27.03. 2017 20:58 »
I have a Norton Dominator which I think has a K2F Magneto.  I acquired the bike last summer and with some difficulty got it running. Once started, it is good and a great ride. I have kept turning it over during the winter but no sign of starting. I have removed the plugs (which do get petrol) but there is absolutely no spark, even in the dark. I have cleaned the points and checked that I get a gap as they turn.  The bike has been restored and the mag looks externally in good nick.  Any thoughts on resolution much appreciated.  Pat

Online beezermacc

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Re: K2K Magneto - no spark
« Reply #1 on: 27.03. 2017 23:20 »
If you don't have any information about the magneto, i.e you don't know if it has been restored, you would be advised to let a magneto specialist have a look at it. If it has been restored before it may be quite easy to fix it. If it hasn't been restored, it needs to be!
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Online WozzA

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Re: K2K Magneto - no spark
« Reply #2 on: 28.03. 2017 05:25 »
does it have spark at the points with the end cap off?
IF so... it may be earthing from the kill switch ...
IF not...  as beezermacc suggested get it restored..
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Online groily

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Re: K2K Magneto - no spark
« Reply #3 on: 28.03. 2017 09:19 »
As Beezermacc and Wozza say.
If you wanted, you could test for basic HT continuity by sticking a meter from the brass segment of the slipring  to the mag body having removed a pick-up - should be a few thousand ohms. An infinite reading means trouble, probably because the coil is open line or, best case, is not connected properly to the slipring (or earth). At least you'd then know you had a real problem on your hands.
You should see the same K ohms from the contact breaker centre screw to the slipring, and should have (almost for sure will have), less than 1 ohm from the cb screw to the mag body with the points held open. This will show the low tension primary winding is OK and will also tell you that the coil is indeed earthed as both primary and HT winding are earthed in common.
Suspect you need to talk to Beezermacc!
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Online JulianS

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Re: K2K Magneto - no spark
« Reply #4 on: 28.03. 2017 09:27 »
If your points are as the photo make sure that the outer spring does not touch the cam ring and that the small backing spring is not displaced to the side touching the base plate, both would earth the points.

If the fault is not obvious then you need to get it checked over and renovated as necessary.

Online Greybeard

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Re: K2K Magneto - no spark
« Reply #5 on: 28.03. 2017 10:53 »
See how nice people are here; no one has told you to go to a Norton forum!  ;) Better flog the Notrun and get a Beeza model 'A'

Offline Patbradley

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Re: K2K Magneto - no spark
« Reply #6 on: 28.03. 2017 20:43 »
Lots of nice people out there and a few things to try before I have to take it off.  Many many thanks.  I did the easy test, removing the cap...no spark😕  Norton a gift from my dad, shall suggest trading it in for a Beeza.

Online trevinoz

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Re: K2K Magneto - no spark
« Reply #7 on: 28.03. 2017 21:09 »
Don't trade it in, just buy a BSA and you will have two great bikes.

Offline Patbradley

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Re: K2K Magneto - no spark
« Reply #8 on: 28.03. 2017 21:19 »
There's an idea.  Would have to sell Bonne.......2010 so no spark issues there.

Offline duTch

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Re: K2K Magneto - no spark
« Reply #9 on: 29.05. 2017 08:55 »

 I'm looking for something different, but wonder if there was a positive resolution *????* *????*
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