No eBay APP ID défined in Kunena configurationThat part numbers seems to check out. Here's one on Ebay (same as Dakota). But I'd test the charging coil winding first.
"Do not adjust your mind, there is a fault in the reality" 1957 175 Sport
Ok I did some checking today. I checked the resistance of the ignition coil and found it ok. Checked the plug cap resistance and found it open circuit ? Checked the pickup coil and it read 150 ohms a bit high I guess and have ordered an new plug cap. Also found some corrosion on the connector from the Ignition switch so have cleaned a few of the connector terminals in the wiring loom. Will see in about a week whether this has made any difference.