I own a 1996 MTD (Southern Statesman) and the blade engages only on
the second notch of the index....

In other words... when the blade engagement lever is in the FULL UP
position the blade is stopped/off, as it should be... but, I have to
place the lever down to the SECOND notch on the index to get the blades
to turn/engage.

Is there a switch somewhere on this tractor that I do see???.... any
input will be appreciated!

Thanks in advance,
Dave