Trouble starting

[ame]http://youtu.be/A0AkJlZ-FLU[/ame]

Here is what's happening, if I leave the button pushed in it will just continue to crank like that . How would I go about checking spark, is it a similar process to an old spark lead system and holding it near the body while cranking ?

I have wired up the start button as instructed by hotwireauto, pink wire has 12v supply off the ignition and then a separate wire comes off the ignition run position which is a keyed 12v, this wire runs to one side of the starter button and then the yellow wire from the harness comes off the other side of this switch. I have wired the clutch safety ground straight to a clean bare metal part of the body as I have no clutch pedal switch.

I have a 75mm2 flex welding wire from neg post to boot floor, another of the same size from the block to chassis, then multiple grounds off the engine to body and chassis, the engine ground for the harness is on the bell housing as specified in the instructions. All grounds are to good clean metal surfaces.

I am a bit dubious possibly on the crank angle sensor as the body was bolted to the block with the 10mm bolt and the inner guts were a bit loose and I pushed it back in a flush but no change. I noticed the inners of it were a little circuit board covered in silicon. Not sure if this is normal or not, but I think I need to start with Finding out if i have spark. Any suggestions or tips are welcomed. Thanks guys