I am new to rotary engines, my 16yr old son picked up an "85" RX7. 35Cu in x2. carb, automatic. Bad stalling problem, can give much detail, but new to site. I am an aircraft mech, but not worked in it for many years. Built up, raced, and fed a "73" Camero to an Elm tree as a teenager. THE RX7 is not safe for the son to drive, HELP PLEASE!