Troubleshooting; Engine Will Not Crank; Engine Cranks But Will Not Start - Mercury HP700 SCi Manual

Engine Will Not Crank

Possible Causes
Battery switch "OFF".
Remote control not in neutral position.
Open 50 amp circuit breaker or 15 or 90
amp fuse circuit.
Master or starter solenoid defective.
Loose or dirty electrical connections or
damaged wiring, battery cable diameter
(gauge) too small for the application.
Low battery charge or defective battery.
Defective starter.
Defective key switch.
Defective neutral/safety switch.

Engine Cranks But Will Not Start

Possible Cause
Improper starting procedure
Low battery voltage
Empty fuel tank or fuel shut off
valve closed
Faulty fuel pump, wiring, fuel
pump fuse, 50 amp circuit
breaker or a fuel pump relay
Faulty ignition system
component
Lanyard Stop Activated
Obstructed fuel filter
Stale or contaminated fuel
Fuel line or tank vent line
kinked or restricted
Crankshaft position sensor
faulty
Faulty fuel pressure regulator
diaphragm

TROUBLESHOOTING

Read starting procedure
Charge the battery
Fill tank or open valve
Replace faulty component
Service ignition system
Reset
Replace filters
If contaminated, drain tank and fill with fresh fuel
Replace kinked lines or blow out lines with
compressed air to remove obstruction
Test and replace if faulty
Test and replace if faulty. Do not attempt to start
the engine if the fuel pressure regulator
diaphragm is ruptured.
Switch to "ON" position.
Position control lever to neutral.
Check and reset circuit breaker or
replace fuse.
Replace.
Check all electrical connections and
wires (especially battery cables).
Clean and tighten faulty connection.
Test and replace if defective.
Test and replace if defective.
Replace.
Replace.
Remedy
121
Remedy