Kitty Cat Snowmobiles

I have two 1980 kitty's that run great but leak fuel out of the carb through the air intake. It will drain the whole tank. My assumption is that the float isn't pushing against the needle to shut off the fuel flow into the carb.

I've taken them both off and cleaned and checked them for adjustment.
If I'm holding the carb upside down and pushing down on the float it is right at .68in as allowed.

Any ideas? Help please!

Buddy