starter or starting

HELLO ! THE STARTER ONLY GOES FOR 2-3 SECONDS WHIT ENGINE ,THEN IT RUNS FOR FREE. WHEN I KICKSTARTER THE STARTER ENGINE MOVES. ITS WERY HARD STARTED, IHAVE CHECK STATOT ITS OK 35 VOLT AND 1,5 VOLT TO IGNITION MODULE ,THE SPARK IS WEAK BUT BLUE. WHAT DOES THE CALE FROM STARTER TO...