Hi, I know my carb pretty well. I've rebuilt it many times including just recently but i'm not sure what to make of this.
On the accel pedal, I press to accel but theres a flat spot in accel. The engine hesitates for a moment. So I checked the accel pump. Works great, good strong jet of fuel BUT only on the release stroke of the throttle. For example, I open the throttle, when it closes I get the good jet of fuel. I've looked and looked at it but can't figure out why its doing this. Any ideas?