last week I installed two new batteries in my 2008 215's GTX's and took them to the lake for a test run, both of them ran great for an hour until the rain came up so I loaded them on the trailer and headed home... This week "today" I took them both out and the both started up and backed off the trailer.. I parked the trailer and my two boys headed over to the beach with them to pick me up after I parked the trailer.. I walked down to the beach and could see my son was stalled out about 100 feet from shore... I rode over to him on the ski that was working and he said it was running rough and just died... I had him hop on the other one so I could give it a good look.. The thing would turn over fine , but NOT fire... I did get it going once and it started out very rough.. I laid into the throttle and it SLOWLY came up to 75% speed... I stopped to pull out the white key and put in the yellow key and the thing would not start... Turns over but no fire.... after that I put it back on the trailer and decided the boys and I would ride the other ski for the day... my question is, could this be bad gas? No lights came on.. I'm going to try and change the plugs tomorrow to see what they look like.. Is there any other things I need to check? How do I drain the gas? Can I just siphon it ? thanks for any help.