I am new to this site. Anyways I have a hustler fastrak mower #926519 with a 18 hp honda engine # GXV-610. I just finished changing the starter solenoid with a brand new one. The solenoid is correct for this engine and looks identical to the old one. Having installed the new solenoid with electrical connections reestablished, I hooked up the battery cables. On connecting the positive terminal a whining sound from the solenoid was heard. The keys were in the off position. To stop the whining I had to disconnect the battery. Any ideas?