I just installed a new Briggs & Stratton CXI 2700 on my Dixie. Mower runs great except it is hard to start it first time of the day. I have choke cable adjusted as far as it will go. Is there another adjustment to the choke that I don't know about. If I spray starting fluid in it cranks right up and it's fine for the rest of the day. Seems like it's not choking all the way even though the cable is adjusted as far as it will go? Thanks