VX 1.8 8 valve starting

[HAL2016]

Has anyone experience this starting problem.
Engine turns over from cold absolutely fine until Excelerator is pushed a few times to inject fuel but then stops dead and struggles through a couple of turns then starts no problem
Car is VX 1.8 8 valve on 40's
Starter checks out as well as the battery and alternator.
Problem Is the same when starting from hot and is only apparent when throttle is pumped even once.
I have been told the starting with webbers can be a little temperamental and have tried between 1and 4 pumps on throttle.
It seem that once the fuel gets in the cylinders it starts to stuggle until it starts

[HAL2016]

Thanks for the reply..after trying different ways of pumps on the throttle it seems that any more than half a pump on the throttle is to much.. it responds to only a slight pump before engaging the starter.