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The BSA A7-A10 Forum
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Technical (Descriptive Topic Titles - Stay on Topic)
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Lucas, Ignition, Charging, Electrical
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Hi guys. I may have mixed PPlyg leads
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Topic: Hi guys. I may have mixed PPlyg leads (Read 496 times)
Ewen
A's Good Friend
Join Date: Aug 2021
Posts: 107
Karma: 1
Hi guys. I may have mixed PPlyg leads
«
on:
30.08. 2021 02:21 »
Hi guys. I have a 57 Goldflash. Does the plug lead closest to the cylinders from the mag go on the right hand cylinder. She won't start an is spitting back but I haven't touched the timing.
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1957 Goldflash
1977 Bonneville
2005 BMW GS1200
Suzuki GN125
TimK
A's Good Friend
Join Date: Mar 2012
Posts: 175
Karma: 0
Re: Hi guys. I may have mixed PPlyg leads
«
Reply #1 on:
30.08. 2021 02:47 »
Hi Ewen
It depends how the timing has been set - swap them over and give it another go, you can't do any harm.
Cheers
Tim
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Tim Kerridge
Australia
BSA_54A10
Wise & Enlightened
Join Date: May 2008
Posts: 2544
Karma: 37
Re: Hi guys. I may have mixed PPlyg leads
«
Reply #2 on:
30.08. 2021 07:44 »
I you fit an electronic ignition you will get a "wasted spark" because both plugs fire each stroke.
The worst thing that can happen is a back fire through the exhaust
So do as TimK suggests /
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Bike Beesa
Trevor
Ewen
A's Good Friend
Join Date: Aug 2021
Posts: 107
Karma: 1
Re: Hi guys. I may have mixed PPlyg leads
«
Reply #3 on:
30.08. 2021 21:24 »
Thanks guys. I did a quick check and timing is out. Its been ages since I worked on this bike. I reset the points to 11 thou (was about 15, 16 thou) and I had forgotten how much that alters the timing. Hopefully onto a solution now.
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1957 Goldflash
1977 Bonneville
2005 BMW GS1200
Suzuki GN125
Ewen
A's Good Friend
Join Date: Aug 2021
Posts: 107
Karma: 1
Re: Hi guys. I may have mixed PPlyg leads
«
Reply #4 on:
30.08. 2021 21:31 »
Got the wee mirror and torch out... confirmed that brass contact in slip ring was in line with with the correct lead. Just remembered that obvious thing.... I'm out of practise.
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1957 Goldflash
1977 Bonneville
2005 BMW GS1200
Suzuki GN125
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The BSA A7-A10 Forum
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Lucas, Ignition, Charging, Electrical
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Hi guys. I may have mixed PPlyg leads