Interesting video as my Grandpa bought one new in 1936 and my Dad farmed with it until the mid sixties. Started it and ran it a few times myself. They always warned us to not push on the crank as the pony motor can backfire and break your arm, as my brother could attest to. Even when pulling on the crank, it is wise to not hook your thumb over the crank handle.
Interesting video as my Grandpa bought one new in 1936 and my Dad farmed with it until the mid sixties. Started it and ran it a few times myself. They always warned us to not push on the crank as the pony motor can backfire and break your arm, as my brother could attest to. Even when pulling on the crank, it is wise to not hook your thumb over the crank handle.