I have a 1999 kawasaki 300 C quad bike that when i charge the battery and take it out then go to start it again the next day the battery is dead, what could be wrong? is there an altinator? Also some times when i take it out and i take the choke off it it will splutter and then eventually stall, i have to keep the choke on it to keep it going, could this be something to do with dirt in the tank? if so how would i clean it?