1994 Johnson/Evinrude "ER" CV 85 thru 115 outboards Service Manual, Page 74Get this manual
Primer System Servicing Function Test
1Start engine and allow it to reach normal operating temperatureSet engine speed at 2000 RPM
[!] 2While engine is running, push key in Engine should run richly and drop 1000 RPM3Remove air silencer assembly
r:;J 4Remove primer hose from any primer fitting that you suspect is cloggedConnect 1fa inI.Dclear vinyl hose between the fitting and syringe filled with isopropyl alcohol