BRP Evinrude E-TEC G2 Service Manual page 443

Outboard Starts, Low Maximum RPM
OBSERVATION
SystemCheck light Outboard is in S.A.F.E.
Incorrect propeller
Setup or rigging
change
Incorrect outboard mounting
height
Throttle plate opening
Incorrect, fouled, or worn spark
plugs
Contaminated or poor quality
fuel
Fuel supply restricted
Low alternator output (55 V)
Performance of
Weak or erratic ignition
outboard at lower
operation
speeds appears
Fuel injector electrical circuit or
normal
control function
Restricted or leaking fuel
injectors
Low fuel pressure
EMM programming, timing, or
operation
Restricted engine exhaust
Excessive Smoking
OBSERVATION
Contaminated or poor fuel
Excessive fuel or oil
consumption
May coincide with
Outboard in break-in mode
increased oil
consumption Outboard mounted too low
(normal if occurs after
Vapor separator vent
winterization)
Faulty/leaking fuel injector(s)
Damaged fuel lift pump
POSSIBLE CAUSE
POSSIBLE CAUSE
Outboard Starts, Low Maximum RPM
PROCEDURE
Access EMM fault codes and check SystemCheck
warning
Refer to specifications, check recommended WOT
RPM; water test and install correct pitch propeller
Refer to installation guidelines
Check throttle plate and WOT opening
Replace spark plugs
Check or replace fuel supply
Check anti-siphon valve, and fuel pick-up, check
for fuel system air leaks
Check voltage on 55 V circuits, refer to System
Analysis and Electrical and Ignition
Check ignition, refer to System Analysis and
Electrical and Ignition
Check voltage at injectors, refer to System
Analysis
Check injectors, refer to Fuel System
Check circulation pump operation, refer to Fuel
System
Check EMM program and timing; check injector
coefficients; and monitor injector circuits and
ignition primary outputs
Check and repair as needed
PROCEDURE
Check or replace fuel supply
Check fuel system for fuel supply air leaks or
leaking fuel injectors
Use diagnostic program to confirm
Check installation height of outboard
Check vapor separator assembly for proper
venting/float valve operation
Check injectors, refer to Fuel System
Check for internal leaks
Trouble Check Chart
T-443
T