When the bike is cold (I don't mean cold cold, just sitting in garage in SoCal), the electric starter won't turn the motor fast enough to start it. I hold the starter button down and it sounds like it turns half a turn then stops, then turns a half turn then stops. I have a fully charged battery. I have tried with a fully charged yausu (sp) and a fully charged after market. I have checked electrical connections at both battery connections, where the system is grounded to frame and the connection on the starter. Neither pos or neg wires from battery get hot. Once I have the bike started (kicking or kicking with starter button depressed) and it is warmed up, I can shut it down and the electric starter will spin the motor fast enough to start (like it is supposed to do all the time). What should I check next? Is there a way to check resistance through the stater motor to verify it is OK? Please Advise.