The Seidel 770 starts easiest if it's been liberally primed before flipping the prop. On the test stand I've been injecting the fuel directly into the open carb with plastic pipette. The question is how to accomplish this once the carb is buried in a cowl (and right up against the firewall).

I made a tight 90 degree bend in a 4mm brass tube, cut one end off short and slipped on bit of fuel tubing for protection. The end of the tube would sit in the "throat" of the carb and the other end would run up through a slit in the cowl. At least that's my thinking at the moment. But I'm wondering if the fuel line from the tank might actually be in the way. I'm not sure about that; I'll have to check.

Is there any other way to mechanically "suck" fuel into the carb? For example, if I block off the exhaust tube and rotate the prop (a few times) would that do it?