Mercury Mariner 30/40 4-Stroke Outboard Service Manual 1998, Page 163Get this manual

CARBURETOR
4Remove float bowl5Remove plunger, spring, and gasket
aScrews (4)Float BowlPlungerSpringGasketRetaining Screw

6Remove floatplug, nozzles and jets

• ATV
• Jet Ski
• Outboard Motors
• Personal Watercraft
• Snowmobiles
• Stern Drives