Section 7 - Troubleshooting
90-899883234 JANUARY 2008
Page 133
Engine Will Not Start or Is Hard to Start
Possible Cause
Remedy
Lanyard stop switch activated.
Check the lanyard stop switch.
Improper starting procedure.
Read the starting procedure.
Insufficient fuel supply.
Fill fuel tank or open valve.
Faulty ignition system component.
Service the ignition system.
Clogged fuel filter.
Replace fuel filter.
Stale or contaminated fuel.
Drain fuel tank. Fill with fresh fuel.
Fuel line or tank vent line kinked or clogged. Replace kinked lines or blow out lines with compressed air to
remove obstruction.
Faulty wire connections.
Check wire connections.
EFI system fault.
Have EFI System checked by an authorized Mercury
MerCruiser dealer.
Poor Performance
Possible Cause
Remedy
Throttle not fully open.
Inspect the throttle cable and linkages for proper operation.
Damaged or improper propeller.
Replace the propeller.
Excessive bilge water.
Drain and check for cause of entry.
Boat overloaded or load improperly
distributed.
Reduce load or redistribute load more evenly.
Flame arrestor dirty.
Clean the flame arrestor.
Boat bottom fouled or damaged.
Clean or repair as necessary.
Ignition problem.
See
Engine Runs Rough, Misses or Backfires
.
Engine overheating.
See
Excessive Engine Temperature
.
EFI System fault
Have EFI System checked by an authorized Mercury MerCruiser
dealer.
Engine Runs Rough, Misses, or Backfires
Possible Cause
Remedy
Clogged fuel filter.
Replace filter.
Stale or contaminated fuel.
If contaminated, drain tank. Fill with fresh fuel.
Kinked or clogged fuel line or fuel tank vent line. Replace kinked lines or blow out lines with compressed air
to remove obstruction.
Flame Arrestor dirty.
Clean Flame Arrestor.
Faulty ignition system component.
Service ignition system.
Idle speed too low.
Have EFI system checked by an authorized Mercury
MerCruiser dealer.
EFI System fault.
Have EFI System checked by an authorized Mercury
MerCruiser dealer.
Excessive Engine Temperature
Possible Cause
Remedy
Water inlet or seacock closed.
Open.
Drive belt loose or in poor condition.
Replace or adjust belt.
Summary of Contents for Axius 350 MAG
Page 26: ...Section 1 Warranty Notes Page 18 90 899883234 JANUARY 2008 ...
Page 42: ...Section 2 Getting to Know Your Power Package Notes Page 34 90 899883234 JANUARY 2008 ...
Page 76: ...Section 4 Specifications Notes Page 68 90 899883234 JANUARY 2008 ...
Page 120: ...Section 5 Maintenance Notes Page 112 90 899883234 JANUARY 2008 ...
Page 138: ...Section 6 Storage Notes Page 130 90 899883234 JANUARY 2008 ...