Lister Junior SR1 Mag weak Intermittent spark

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

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.

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