the problem that im having is i have a 1970 honda cb750 it has a brand new battery and a new rectifire. the only way to start it is buy kick starting it. thats were the problems begin the bike only starts up if a battery charger is on it. if i take the charger off and try to restart the bike it will then start up . but if i leave the bike to sit for 15 min it wont start back with out the battery charge back on it. i thought that it had a slow drain but the battery never drops under 11.95 volts.... can anyone help