ZS carb question

[trunnell@mindspring.com (Glenn Trunnell)]

Hi,

I recently had my carb professionally rebuilt and I'm having some trouble
tuning it.  The main jet and the needle were replaced and I notice that the
jet sits about 1/8 - 1/4 in. below the bridge.  I don't remember if this is
correct does anybody know if the jet should be flush with the top of the
bridge or is being recesed correct.  This is a ZS CD150 with a
nonadjustable jet as found on a '76 Spit.

Thanks as always,
Glenn