2008 Evinrude E-TEC 55MFE Technical Manual, Page 282Get this manual
TROUBLE CHECK CHART OUTBOARD STARTS, LOW MAXIMUM RPM
OUTBOARD STARTS, LOW MAXIMUM RPM
OBSERVATION
Setup or rigging change
POSSIBLE CAUSE
Incorrect propeller
PROCEDURE
Refer to specifications, check recommended WOT RPM; water test and install correct pitch propeller
Performance of outboard at lower speeds appears normal
Incorrect outboard mounting Refer to INSTALLATION AND PREDELIVERY height Incorrect, fouled, or worn spark Replace spark plugs plugs Contaminated or poor quality Check or replace fuel supply fuel Check primer bulb, anti-siphon valve, and fuel Fuel supply restricted pick-up, check for fuel system air leaks Check voltage on 55 circuits, refer to SYSTEM Low alternator output (55 V) ANALYSIS and ELECTRICAL AND IGNITION Weak or erratic ignition Check ignition, refer to SYSTEM ANALYSIS operation Fuel injector electrical circuit or Check voltage at injectors, refer to FUEL control function SYSTEM Restricted or leaking fuel Check injectors, refer to FUEL SYSTEM injectors Check circulation pump operation, refer to FUEL Low fuel pressure SYSTEM Check EMM program and timing; check injector EMM programming, timing, or coefficients; and monitor injector circuits and operation ignition primary outputs Restricted engine exhaust Check and repair as needed