Briggs engines with the Pulsa-Jet carby can take quite a few pulls to get started, after the carby and tank have been off.
That's because the well in the tank top [the one the short carby dip tube goes into] has to be filled up with fuel by the pump before it can run continuously. If the pump diaphragm is old and stiff, it can be a slow process.
I'd replace both of the diaphragms, while it's in bits, personally.
Cheers,
Gadge
"ODK Mods can explain it to you, but they can't understand it for you..."
"Crazy can be medicated, ignorance can be educated - but there is no cure for stupid..."
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