next week wont start..help....? i purchased this ski expecting to have some trouble initally with it considering the new engine and age. i purchased a new battery for it. its a premix and it started up fine. the next week i take it on the water and it doesnt start. i tried jumping it while on the water, no response at all. i later took it home and started it for just a second and it started...whats loose or any info would be great....