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Author Topic: Next problem-NO SPARK!  (Read 568 times)

Offline Redbaron

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  • Posts: 29
Next problem-NO SPARK!
« on: July 21, 2025, 04:17:57 PM »
I thought I was finished but, after finding no power on red wire at ignition switch, I ran a new red wire direct from battery to ignition. All lights work and bike cranks over but it does not have a spark at spark plugs. I rechecked all the electrics and especially the relays, wires, connectors. What would you do next?
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1983 BMW R65

Offline Barry

  • Mt. Olympus Resident
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Re: Next problem-NO SPARK!
« Reply #1 on: July 22, 2025, 01:52:47 AM »
First step would be to check that +12volts is getting to the ignition coils. With the ignition on there should be +12V at terminal 15 of the rear coil.   If not there is a fault somewhere between the ignition switch - stop switch and the coil.
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Barry Cheshire, England 79 R45

Offline Redbaron

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Re: Next problem-NO SPARK!
« Reply #2 on: July 22, 2025, 08:58:30 AM »
I checked ground/earth wires from coils and one was bad.  I now have spark! Thanks
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1983 BMW R65
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