Re: 1976 Johnson 85HP cannot start
You should start with a spark and compression test. The spark should jump a 7/16" air gap. check with your local auto parts store, they should sell some type of an adjustable spark checker. Compression should be some where around 100-125 psi and within 10% of each other.
About the only place to find a factory manual is on e-bay or google Ken Cook, he sells factory manuals. Make sure and order by using your model number for thecorrect manual.