...right. When the gas start diesel engines were developed/manufactured there was no such thing as a start on diesel engine. It wasn't a thing. JD couldn't do it so they had a pony motor. (a 4 cylinder engine to start a 2 cylinder one.

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Daniel G.
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(May 1970) 147 w/an IH spring assist, 48" deck, 42" blade, 1969 73, #2 trailer, 10" Brinly plow and (on loan) Dad's #2 tiller.