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Lister Junior SR1 Mag weak Intermittent spark

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Lister Junior SR1 Mag weak Intermittent spark

Post by mayog on Sun Apr 24 2016, 10:27

I have a Lister Junior which im trying to restore i have tried the magneto, however there is an intermittent spark at the points which is very weak and there is no spark at all at the plug, any suggestion where i need to go with this magneto, any help advice appreciated,
or can anyone recommend a service supplier
Geoff

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Re: Lister Junior SR1 Mag weak Intermittent spark

Post by rich07961 on Sun Apr 24 2016, 16:17

mayog wrote:I have a Lister Junior which im trying to restore i have tried the magneto, however there is an intermittent spark at the points which is very weak and there is no spark at all at the plug, any suggestion where i need to go with this magneto, any help advice appreciated,
or can anyone recommend a service supplier
Geoff

I would start to have a look at the condenser first, also check that the magneto itself is timed this is a good link,https://www.youtube.com/watch?v=GgiIXWmhz2Q maybe not a SR1 but same principal
is the same.
The condenser you can use a DCB101C Lucas about a fiver on fleebay.
Have you checked coil with a multimeter and tried to see if there is a spark from ht lead.

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Re: Lister Junior SR1 Mag weak Intermittent spark

Post by mayog on Sun Apr 24 2016, 17:42

Rich, being new to the game will have a look, many thanks for the advise, Geoff

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Re: Lister Junior SR1 Mag weak Intermittent spark

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