My son has a 98 seadoo xp limited with a 951 motor. We have replaced the battery with 2 known good batteries and tried to start several times. It will turn over for about 2 seconds, then acts like a bad battery, timing off, or bad starter. I have disconnected the solenoid and jumped the wires, and Still same hard start issue. When we do get the ski started, it runs fast and strong. Is a bad starter common for these skis, or are there some other electrical issues that can cause this. Thank you. 
