Mercury Mariner 8/9.9HP 4-Stroke Factory Service Manual, Page 106Get this manual

2Install pilot jet, O-ring, plug, and main nozzlea
4Install the needle valve into the float hingeb

aNeedle ValveFloat

Main Nozzle Pilot Jet (Below seal cap) O-Ring Plug

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