1999 "EE" 90, 115 FFI, 150, 175 V4, V6 FFI Outboards Service Manual, P/N 787024, Page 81Get this manual
IExcessive Smoking SYSTEMCOMPONENT CAUSES Poor quality fuel Hole in lift pump diaphragm Fuel System ACTIONS Substitute know good fuel Fuel present in lift pump pulse linesSee Action StepsFuel System Fuel would flow from vapor vent hoseSee Action StepsFuel System See Action StepsFuel System Engine may start with fuel and oil hoses swapped, but fuel system will be filled with oil Use FFI Diagnostic Software to verify Use FFI Diagnostic Software to verify Monitor using timing light to look for multiple firingSee Action StepsFuel SystemPossible Code 15 Perform leakdown testSee Section System is operating in excess of 43 PSI causing continuous oil flow into throttle boresVisually inspect oil nozzlesCheck installation
Vapor separator float stuck open Injector(s) stuck open Incorrectly connected fuel and oil hoses at engine