Tecumseh Overhead Valve 5.0 hp, 3/4" bore Go-Kart & Mini-Bike engine?

djs1

New member
I got a tecumseh go kart engine on my go kart but there is something missing on it here is a picture.

http://img232.imageshack.us/img232/8351/tec5hp.jpg

i need to no what is in that thing circled
 
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