I had the same problem with my 1094 vortic engine,
It would start when starting fluid was sprayed into the air intake.
I was convinced that the fuel pump was good because
when I would disconnect fuel line from output side of filter it would pump a stream of gas for about a foot.
Based on this I thoght the fuel pump had to be good.
But not so, I found out that it was working But
it did not have enough pressure.
I replaced the fuel pump and filter and solved the problem.
Sunday, July 2nd, 2006 AT 1:57 PM