The shift rod does NOT turn on these.----------There is no adjustment at the brass connecter either.----So are the notches on the shift rods both lined up with holes in the connecter.-----The only adjustment is at the shift lever.
Hopefully you installed a new water pump impeller.----If equipped with a plastic piece to open the throttle n, it might be broken.----I do not believe it is a fuel pump issue.
The 2 engines are totally different.-----You need the manual for the 90 degree block.------Do a compression test and post your numbers before spending any beer tokens on this motor.----Ignore the ---S--- as it means very little.