2004 SR Johnson 2 Stroke 9.9, 15, 25, 30 HP Outboards Service Manual, Page 141Get this manual
FUEL SYSTEM COMPONENTS
COMPONENTS
The carbureted fuel system consists of the following components: Primer solenoid Primer pump (25 TE and 2530 Models) Fuel pump Carburetor Intake manifold assembly
Primer Solenoid
REMOTE ELECTRIC MODELS Fuel mixture enrichment for cold starting and running is provided by solenoid operated fuel primer valveWhen activated at the key switch, the valve diverts fuel from the fuel pump directly to the carburetor andor the intake manifold1Manual primer 2Warm-up position (colored groove)