If you bought a generic carb kit, it will fit other carbs as well. If
they sent you a new metering lever( the lever with the spring under it,
It would need to be adjusted). If I am right, try this remove the
metering lever, spring and needle, spray carb cleaner in the needle
hole and swab out good, pressing down firmly and twisting the Qtip. Now
if you have the old lever, reinstall it. BE SURE THAT THE GASKET GOES
TO THE FUEL RESERVOIR FIRST AND THEN THE DIAPHRAM AND THEN THE COVER.
iF YOU HAVE THEM IN REVERSE, the diaphram pin that trips the lever, is
now laying against it an holding it open and fuel is being pumped into
the carb.When you sit it aside fuel in the reservoir continues to drain
into the venturi. If you do not have the old lever, look and see if you
have the spring standing straight up and in its seats.Now take a small
screw driver and hold down on the needle side of the lever and bend the
flat side up or down until the lever is level with the sides of the
channel it sits in.
wrote:
Art:

I found the following numbers on the carb:

W1149A
J9

Can you help me?

Mark

The inlet valve in the carb is leaking. Could be trash or not adjusted
correctly. What model Walbro carb is it?

--
Art