On Mon, 20 Nov 2017 20:57:46 -0600, Steve Kraus
wrote:

I think maybe I will try to give the old carb a good cleaning and
put it back on.

Look inside the carb throat for tiny venturi holes. The only way to
really clean them is with a stainless steel wire plucked from a wire
brush and a pair of needle-nosed pliers. Don't use some wire that may
break off.

The venturi's allow for measured air and fuel mixture in the carb.

If you hit anything substantial a shear pin "could" be bent, but not
broken. Just a slight damage could throw the timing off.

Just sayin'