Second year with this 1993 Stratos 285 Pro XL, Love the rig very fast and very fishable. Problem is engine starts and runs great, but after I stop and fish for a while the ball is soft again. Sometimes I can crank and crank it will start but usually have to pump up the ball and it starts up. I Removed cover and pump[ed the ball and it will take all you can give it. Could not find a leaks at all.HELP