Thought I was going to ride tomorrow. Bike has been sitting for 1 month. Go to start it up and it wouldn't fire. Hmmm? Sprayed Hot start at air filter and it fires then dies. Then it occurs to me that I did not pull the enrichener thingy. I pull it and it starts but dies after about 4 seconds. Does this repeatedly. Won't keep running no matter what I do to the enrichener. How soon after it starts do you need to push the enrichener back in? I usually do it after 10 sec. or so. Don't want to overwork the flimsy starter which has not failed so far. Bike has always started well. What to do next? Don't know what to try on an injected bike.Gas is not as fresh as i'd like but only 2 months old. Help?