I’m having trouble with my gtx supercharged. I’m trying to start it after a long winter. I replaced the battery and Now when I start it the engine will start but idles a little rough. But when I hit the gas, I just tapped it, and the engine revs to full throttle and won’t idle down even when I remove my finger from the gas. I have to completely shut the jet ski down. The only think I put in for the winter was sta-nil in about 1/4 of gas. Anyone have this issue or know of what I might be able to check???
Last edited: