I have a old INDAK 6 pin ignition switch I need to replace and do not know if the original switch is a 4 position switch. I'm looking at a Off, On, Start, Choke as the four positions. No INDAK part number, just (INDAK Pat Pend) the six pins are labled, B, C, S, M, I, M. Guessing, Battery, Choke...