BRP E250DHLSCS Service Manual page 382

TROUBLE CHECK CHART
OUTBOARD WILL NOT START
OUTBOARD WILL NOT START
OBSERVATION
Outboard turns over
T–2
POSSIBLE CAUSE
Stop circuit grounded
No Fuel
Water in fuel
Contaminated or poor fuel
quality
Fuel supply restricted
Air in fuel system
Low or no fuel pressure to
injectors
Incorrect, fouled, or worn spark
plugs
Fuel injectors not working
Excessive fuel or oil, engine
flooded
Low or no 55 V alternator
output
Capacitor or 55 V circuit wiring
Ignition
CPS input to EMM, no sync
No ignition system primary
voltage output from EMM to
ignition coils
Low or no compression
Water in engine
Internal powerhead damage
Leaking cylinder/crankcase,
intake manifold, or reed valves
EMM program, timing, or
operation
PROCEDURE
Check wiring and emergency stop switch. Check
the safety lanyard is installed and stop circuit is
not grounded.
Check for fuel in fuel tank
Check fuel filter, sample fuel from fuel return
manifold.
Check or replace fuel supply
Check primer, anti-siphon valve, and fuel pick-up.
Use primer to fill vapor separator with fuel.
Check for air in fuel supply manifold, refer to
FUEL SYSTEM (vapor separator venting and fuel
supply)
Check fuel manifold pressure, refer to FUEL
SYSTEM
Replace spark plugs
Check voltage at injectors
Check for leaking injectors, leaking fuel or oil lift
pump, or leaking vapor separator vent, refer to
SYSTEM ANALYSIS
Check voltage on 55 V circuit, refer to SYSTEM
ANALYSIS and ELECTRICAL AND IGNITION
Check capacitor and 55 V circuits, refer to
SYSTEM ANALYSIS and ELECTRICAL AND
IGNITION
Check ignition, refer to SYSTEM ANALYSIS and
ELECTRICAL AND IGNITION
Check RPM reading while cranking
Check cranking RPM (300 minimum), refer to
SYSTEM ANALYSIS
Check compression
Check condition of spark plugs and cylinders
Check and repair as needed
Check and repair as needed
Check EMM program and timing; check injector
information (by location and serial number)