Phil,
If you use a bisness card that should be enough to set the air gap. Both legs on the coil should be the same. Also make sure that you have a good clean contact because if you have oil or grease on the earth contact that will cause it not to spark. If you need to contact me just do it through contact details on the website.

Regards,
Bruce

Regards,
[Linked Image]

Bruce


Please do not PM me asking for support. Post on the forums as it helps all members not just the individual.