No spark, what am I missing

[Barnster]

#Piet I will check tomorrow on this. It's is running very rough, like it's not firing on all cylinders. I've taken each plug lead off in turn to see if I can identify which cylinder may be at fault and the issue remains regardless of which lead I remove. The only change is if I remove two leads!

 

[André4Renaults]

Are you certain the firing order's correct? It should be 1,3,4,2, but if the removal of two leads makes difference it may be that they are incorrectly fitted.

 

[Barnster]

Thanks again for all the responses. Still unsure what caused/fixed the issue. Will time it up properly with strobe light this evening having spent the day getting the cooling fan/switch wired back in.