On a synchronous-opening 38 DGAS, the accelerator pump squirts into both barrels.Has anyone had trouble with the stock weber carb accelerator pump jet? I just rebuilt my carburetor and dialed in my ignition timing, idle settings, etc., and if I give it some gas, it lags a lot before revving, which I figure is an accelerator pump issue. My jet only sprays into the primary venturi, and it doesn't seem like it's enough (I just replaced the accelerator pump, so I don't think that's broken).
But on the progressive-opening 32/36 Webers, only the primary barrel gets a shot of fuel.
That initial squirt of fuel from the accelerator should be nearly instantaneous when you hit the throttle. If not, there’s a chance the accelerator pump linkage is bent and not in contact with the plunger. It might take some tweaking to fix it.