On the later model balancers that don't have hand crank lugs, a 3/4" square drive ratchet or a 1/2"-3/4" drive adapter on a 1/2" ratchet will engage the balancer enough to turn the engine. The front of the balancer has a squared-off hole that is just the right size for a 3/4" drive.
Jerry

"It is better to be silent and be thought a fool than to speak and eliminate all doubt!" - Abraham Lincoln
Cringe and wail in fear, Eloi- - - - -we Morlocks are on the hunt!
There is nothing noble in being superior to your fellow man; true nobility is being superior to your former self. - Ernest Hemingway
Love your enemies and drive 'em nuts!