aup me howds,anyone got any idea whats causing this problem?

my saff has had its head kicked in every weekend recently with no probs,today i came to it,it wound over but wouldnt start.

there was no noise from fuel pump,wound it over a couple more times and it still wouldnt go,it had only been parked up for 5mins,but me mate said if the fuel pump was pressured it might not make its whirring sound anyway because it was 'ready to go'

anyway fucked about with the little plugs on top of the coil,it fired but stalled on me and came to life again all the way home,did it about 4times.

anyone any ideas? dodgy fuel pump or dodgy plugs on coil?

anyone know what those plugs on the coil do anyway?