I only approve of habitually burning Victa 2 strokes and Kirby Lausons, Blue. You'll have to do this one without authorisation.
Do you have a spare Pulsa-Prime carburetor and tank? I like to swap the whole system over to verify the diagnosis. Then swap the carburetor and tank separately. From what you've said, you'll soon prove it is the carburetor. From the symptoms, you have a sticking intake ball in the primer. People who try to overcome this by shoving things into the hole, usually destroy the carburetor. I can recall Joe Carroll posted on how to unstick the ball a couple of years ago, but I can't find the post at present. Meanwhile someone on another site has recommended filling the well with petrol, and squirting carburetor cleaner into the long pickup tube, then starting the engine, in the hope that the carb cleaner will dislodge the crud the ball is sticking to, by the time the fuel in the well is used up.
