the stuart issue

Right now im lost, i seem to have gained the stuart issue!, was working fine this weekend start on the flywheel all was good,

Connected the tanks and all up yesterday, she ran for a bit stopped and would not start again fire a few times and stop,

im lost, all thats needed is there, timings all sorted, sparking a beaut on the 3 diffrent plugs i tried,

today, she start and run a bit stoped, plug out pencil, plug back in, run for 20 sec stop, repeat, repeat, repeat

just running out of bits to try

any ideas?

Cheers Steve