1991 Yamaha Outboard Factory Service Manual 9.9 and 15 HP, Page 40Get this manual
Removal 1Loosen the screws and remove both silencer covers (inner and outer) 1Silencer cover
2Remove the carburetor mounting nuts
and then the carburetorNOTE: _ To remove the carburetor, remove the lefthand nut first and then loosen the right-hand nut halfwayNext, pull the carburetor forward, and slide it to the leftThe carburetor can now be removed1Pumpcover 3Gasket (outer) 5Diaphragm (inner) 2Diaphragm (outer) 4Fuel pump body 6Gasket (inner)