I have NEVER used an electric pump on a mechanical pump motor and have zero start problems and no run down batteries with a good pump, starter and battery..
I have had other no start issues. There can be other reasons for his hard start. He could be using a bandaid on the wrong sore.

Carb, weak mechanical pump, cold weather morning..............starting technique.


Right is right, even if everyone is against it, and wrong is wrong, even if everyone is for it. - William Penn