[bascott]

if not, what is receptacle in handle for?
this is a 1960 15 hp motor.

[Fuzzytbay]

If the flywheel has a gear ring, then yes it has electric start capability.
Here is a site for some info on this motor. Since I have never owned one, nor worked on one, I have imparted my 2 cents worth of help.
http://www.eastcoastmarineservice.com/Merc%20150.htm

[bascott]

thank yoo.
that was worth at least 2 cents