My 78 johnson 115 was running perfect when I stored it 6 months ago. Went out the other day and fired her off. Let it run for 5-10 minutes and shut it off. Went out next day and fired her off again, no problems. Now I can't get it started. it doesn't even act like it wants to start. Put in new spark plugs and they don't even appear to be wet from gas. Every thing acts and sounds normal but she just won't start. Any suggestions???Thanks