I used to just remove a spark plug, re-attach the HT lead and then hold the plug against the block, then get a friend to crank the engine
![Smile](http://www.themgzr.co.uk/vb/images/smilies/smile1.gif)
if its sparking then its kinda obvious... lol
![Smile](http://www.themgzr.co.uk/vb/images/smilies/smile1.gif)
(From my Bike days... which reminds me, must get the BSA back on the road...)