Re: Delay in throttle response when giving it more gas
Yes, the hole on the right is for more stroke of the pump. Your carb looks similar to a lot of rebuilts I see, as in missing parts. Supposed to be a spring, a felt seal and two washers on the pump rod where it goes through the aluminum base. Not a big deal but a small leak for air to bypass the air filter.
Also looks like you must have the choke adjusted open, or using an electric heated choke thermostat, since the hot air tube in the manifold for the choke appears to b blocked off.
Sal
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