I have a 1996 polaris sl900.The starter just spins over but does not catch?When it frist stated to do it would eventrly catch and would be fine for the day now it just spins!!I took the starter off and hooked it to a batt. charger and it spins freely and pretty fast but is the shaft supposed to kick out to catch?Mine does not kick!! Any help would be help.Do i have to pull the motor to change the bendix???