The governor is a good bet as stated above.Also check the detent cable for resistance.If the plunger sticks in the valve body it will stay in low.It can happen if someone mashes down on the pedal.
Wanted Good Woman:
Must be able to cook , clean , sew , tune engines and polish trucks. Must have old Stovebolt and garage. Please send picture of old Stovebolt and garage.
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