Mercury Mariner Outboard 225 3 Litre Service Manual 1994, Page 93Get this manual
Fuel System(Carburetor)
1CarburetorIdle Mixture Screw (2)Gasket Emu!sIon TubeThrottle Lever
6 Screw 7- SpacerWasher
10Spring 11 Jetbowl vent (If Equipped) 12 Jetidle air bleed 13Jet, progression 14Float 15Float Shaft 16Screw 17- Pull-Off Clip 18 Needle and Valve Seat 19Gasket 20 Fuel Bowl 21Plug 22- Gasket 23- Jet, main fuel 24Off-Idle Tube Progression Tube" (2) 25 Tee Fining 26 Elbow Fining 27 ScrewWasher