?????  

yes sometimes most of the time not. it will help on take off though.

Sullivan dynatron with two 12 v batteries in series working at 24 v.

I have this engine and my son has one too. Neither requires a starter to start, ever. Get the glow plug wet, and the engine starts on finger flips...rebound type.

Completely agree, no starter necessary at all. Finger spin start, forward or backward, no kidding, try it. Ditto for the 120, 95, 91.

I spoke too soon, this is true for OS, I was thinking ST, not that I have anything against ST, have groups of them.