If it not is an autoelectric model and in 1977 I think the autoelectric model was not in production that late all hoods for previous 9.9, 10, 12.9 and 15Hp will fit. Maybe the 12,9 and 15Hp do not fit, to big.
The autoelectric model had a top arrangment on the hood for the dyna starter. It did not had a regular starter and regular alternator.
The dyna starter was a combined starter/alternator.
