i just got a 2 jet skis..a 1996 spx and 1996 spi..so pretty much the same ski except the spx has a larger motor. I get them to the lake put them in the water and start them. They both seem to run well and strong..I let them warm up and then we get going. Obviously there was a lot of smoke because it was winterized. I warmed them up until there was no more smoke. I rode the spi for about 10 min and everytime i would bring it to full throttle it would stall...but start right back up...i decided to take it out of the water it was annoying me. I am now riding the spx and it runs great for 35 minutes. I let off the throttle and it stalls not turing over again. I couldnt hear anything when i hit the button to start it. So i thought mabye a fuse. Changed the fuses and stil nothing. SO i ddecided to put the jump box on it and i still got nothing. This happened on both skis so what do i do ? this is my first time on the water. Help..is it a starter? ahhhh!