Chrysler 70, 75 and 85 HP Outboard Motors Service Manual OB 3438, Page 29Get this manual
Checking Fuel FlowFirst make sure that there is fresh supply of properly mixed fuel in the tank Open the vent of the fuel tank cap and prime the motor by squeezing the prime bulbWhen the carburetor bowl is full of fuel, pressure will be felt on the priming bulb No Fuel to Carburetor BowlIf the carburetor bowl is dry, check the line for obstruction Disconnect the fuel line from the fuel pumpDirect the fuel line into suitable container and squeeze the bulb Fuel should come out if the line is not obstructedDisconnect the fuel pump to bottom carburetor line from the bottom carburetor and direct line into suitable containerSqueeze the bulb no fuel is reaching the combustion chamberIf the carburetor fuel bowl is known to be full, but the spark plug is dry, then the carburetor jets may be plugged FloodingA wet spark plug means that the motor has been over-choked Go through the procedure for starting flooded motorDisconnect the fuel supply line from the motor, remove all spark plugs and spin the flywheel several times to remove the excess fuel from the combustion chambe rsReconnect the fuel line, replace and dry the spark plugsStart the motor in the normal manner