I am not sure how to use the cold weather starting system. I have been using the decomp lever but have not filled the thermostart bottle. I have not filled the bottle because my understanding is that to operate it the key should be turned back to the left. My key will not turn to the left when inserted. What am I doing wrong? ( It started at 8 degrees but had to run decomp and crank longer than I was comfortable with doing) Thanks Joe