Your picture of the SU Pump looks decidedly like a Facet Cylinder Pump. FACET Pump

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They do tick all the time. You can get a rubber isolator kit that minimises the noise, but they are unlike the SU style pumps that stop ticking when the carbs are primed.

"Y mae dafad ddu ym mhob praidd"
1972 4/4, 1981 MGBGT, 1984 FLHT1340, 1980 XLH1000, 1990 ZX10