Pulled one of the 9nís in the barn tank is gummed up. Has cm hall lights. Went to remove the hood and found the dog legs are the ones with no holes. Generator is the one wire with the high and low screw. Havenít checked the year. Just thought it was interesting. Have a few 9 or 2nís that has the hole in the dog leg for the choke cable. I Ďm not sure how I over looked this stuff over years. When did the change to the dog legs with the holes in them?