I have a Mercury 200 2-stroke that is sometimes hard to start. The starter only turns the motor a couple of times on each key turn. (i.e. repeatedly, I turn the key and get two motor turns and a beep). This makes it really tough to start on some occasions. It seems to be worse after I have been on the water for a while. I have no idea why. Internet searches have been fruitless. I have a newish battery with a good charge. I replaced the starter solenoid. It didn't seem to make a difference. Do you folks think its my starter going bad? Any advise or tips on troubleshooting are greatly appreciated. Thanks in advance.