ok i have a 04 yz250f. to begin with the hot start cable broke so in between the ordering i rode it just pluging the hole up. we went to ride the one day and it wouldnt start..shutting the gas off and tipping it over letting all fuel run out then starting worked? time after wanting to ride wouldnt start again still no hot start cable in tried the running fuel out still nothing. now this bike has never had the valves adjusted but still has very very low hours hard to believe. any thaughts guys?