Need help with fixing old Tecumseh engine.

[upupandaway]

CPURVIS- my substitute carb finally arrived:
https://drive.google.com/file/d/0B0Fx1gfZjd3US3VJc0gwdjFZWkk/view?usp=sharing

 

[upupandaway]

here it is without the cover:
https://drive.google.com/file/d/0B0Fx1gfZjd3UMkM4OFpqalkzUnM/view?usp=sharing

This is the carb i got http://www.ebay.com/itm/262784117502?_trksid=p2057872.m2749.l2649&ssPageName=STRK:MEBIDX:IT

If u get this one, I dont know if it is just mine, but it originally would not start. I turned the screw rich 3 revs with no luck. It behaved as if there was a vacuum in the bowl. I drilled a hole in the primer - letting air into the bowl and screw turned back to default and that did the trick.