1994 Johnson/Evinrude "ER" 9.9 thru 30 outboards Service Manual, Page 69Get this manual
Testing
ill fuel system to service which could leak liquid or vaporized
fuel, resulting in fire or explosion
Omitting the tank pressure test may result in returning a
Whenever fuel tank or line has been serviced or has had parts disassembled, the unit must be tested to ensure that the repaired or reassembled portion will not leak or emit fumesSimply adding fuel to the tank and checking for leakage is not an adequate test, as leakage or fumes may occur only when the tank's contents have been pressurizedAs examples, pressurization can occur when the tank is left in sunlight, or when the fuel is agitated, as might occur during transport[":;l r:;J Tools needed are an air pressure gauge
LJ l!1 Tank Pressure Test Adapter, PIN
air supply is also needed