1973 Evinrude Norseman 40 HP Service Repair Manual P/N 4907, Page 17Get this manual
Quality of the image is intentionally reduced!
" LEAF PLATE
SOLENOID
The carburetor is fitted witl1 mul choke to reduce the raHo of air to fuel fo cold startschoke valve the air ilt of tl1e barrel is mut to choke shaftWh