[andyfrost]

What type of connection are you using from HT lead to plug.

Andy.

[andyfrost]

ALWAYS try for a spark DIRECT from the end of the HT lead , if you have a suppressor fitted remove it and check for a spark directly from the end of the lead.

Andy

[andyfrost]

From memory all Mk12s had a 14mm plug fitting, along with later Mk10s , early Mk10s had 18mm.

Andy.

[andyfrost]

Plug is Champion j8 (or equivilant) , I usually use Garden Hire Spares , for coils.

Andy.

[andyfrost]

Set points to 020″ , you will need to source a cover , is it two or three screw mounting.

Andy.

[andyfrost]

Have you looked on the points hosing cover , it’s usually given on there.

Andy.

[andyfrost]

The wire you’ve highlighted goes to the points ,(in this instance directly onto the end of the condenser) the other uninsulated wire is Earth. Try wiring it up correctly , make sure your points are clean and set , and see if you have a spark.
A modern replacement magnetron coil should be available , which will eliminate the need for points and condenser.

Andy.

• This reply was modified 3 years, 7 months ago by andyfrost.

[andyfrost]

Magnetron coils are widely available online.

Andy.

[andyfrost]

Another option is to try some of the Govt surplus stores , those that have been going for some time bought hundreds of these , and numerous spares..well worth a try.

Andy.

[andyfrost]

Yes , 65cc BSA , just one tip , DO NOT try to start and run it , with the exposed clutch shoes attached.

Andy.

[andyfrost]

Yes , very interesting reading , particularly the Atco tractor piece.Many years back I rebuilt an engine from one , the owner had just about every attacment with it.

Andy.

[andyfrost]

“IF” we are talking about the small charging sets , I’ve always known them as the CHORE horse , never heard of them as IRON horse.

Andy.

[andyfrost]

Choose a reputable dealer on the auction site , message them with your engine details/numbers and they will sort you.

Andy.

[andyfrost]

Coils are readily available online , personally I would opt for a Magnetron version , does away with points and condenser , I’ve used the aftermarket ones and they appear absolutely fine.

Andy.

[andyfrost]

Always interesting to read on the widely varied problems we all have , and the way they are overcome.
TOP job.

Andy.

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