2007-2009 Yamaha F15/F20 Outboard Service Manual, Page 85Get this manual
Carburetor unit
Removing the carburetor
Checking the carburetor
1Disconnect the fuel hose 1, and the blowby hose 2
1Check the air and fuel passages and jetsClean the carburetor body if there is dirt or foreign material2Blow compressed air into all passages and jets
S6AG4170
2Disconnect the throttle link rod and Prime Start connectorsNOTE: The Prime Start connectors are located in the junction box 33Remove the bolts and 5, and then remove the intake silencer and carburetor assembly 7S6AG4190
WARNING
Wear appropriate protective eye gear during the cleaning process to prevent any eye injury by the blown-off debris or liquid