Well, I just broke out my 18.5 HP Murray Riding Mower to give it a little tune up, adjustment, etc. Not to mention to chase out the mouse that made a nest up in the engine housing.

I went for a normal start and all I hear is which I believe is the little starter motor on the right side of the engine, just below the fan, a hummmmm. I can see part of it turning, but it just runs and hums so long as I hold the key. But she wont turn over. End of last season she ran great, no problems.

Need some help here. I'm mechanically inclined with cars, but could use a little feedback on this one.