Suzuki DF250AP Manuel Du Propriétaire page 74

Engine speed will not increase:
• Propeller is damaged.
• Propeller is not clean.
• Propeller is not properly selected.
• Outboard motor is not correctly installed.
• Trim angle is not properly adjusted.
• Spark plug is fouled or incorrectly selected.
• Fuel hose is kinked or pinched.
• Fuel filter is clogged.
• Fuel is deteriorated.
• Fuel pump is failed.
• Ignition system is failed.
• Electronic throttle system is failed.
• Heavy cargo is on the boat.
• Water has entered into the boat.
• Bottom of boat is not clean or damaged.
Engine vibrates excessively:
• Propeller is damaged.
• Engine mounting bolts or clamp screws are
loose.
FUSE
1. Turn the main switch to the "off" position.
2. Remove the motor cover.
3. Remove the fuse box cover and pull off the
fuse.
72
Fuse box cover
NOTE:
Use the fuse puller at the back of fuse box
cover, when the fuse is pulled off and installed.
4. Remove the sub battery cable fuse.
Sub battery cable
fuse case
5. Inspect the fuse and replace with new fuse if
needed.
Main fuse (60 A)/
Isolator fuse (40 A)
Normal fuse
Blade type fuse
Normal fuse
NOTE:
If a fuse is blown, try to determine the root
cause and correct it.
If the cause is not corrected, the fuse may be
blown again.
Blown fuse
Blown fuse