Engine cutting out when reverse selected

Not had a chance to look underneath yet as got an appointment (typically) but any ideas why this is happening?

 

You'll have fitted your reversing light cable to the wrong side of the coil.

 

Thanks James, I did knock a cable off the other day - stupid me!

 

I had this once. I had wired the coil incorrectly.

 

Schoolboy error on my part, I’ll go and stand in the corner for 15 minutes

 

Took a whole 2 minutes. Must do better!

 

I did this on my first Beetle as well. Easily done in a hurry.

 

Its cheaper than crossing the beams with a Pertronix.

 

Stood in the corner and reflected on my poor performance, switched the lead, started and reversed. Thanks guys

 

Don’t forget to tell the wife that it was an extremely complicated issue, only fixed because of your legendary mechanical prowess and scientific aptitude.

 

And tell..
how you saved a fortune..

 

Could be a good anti theft device?

 

This ^^ and go in and congratulate yourself on the gearbox rebuild