MerCruiser 3.0 MPI User Manual

Section 2 - Getting to Know Your Power Package
90-899883272 MARCH 2008 Page 29
In the ignition switch "I" terminal lead, there may be a 20 amp fuse that protects the electrical
system. Check for a failed fuse if you turn the ignition key to the "START" position and
nothing happens, assuming the circuit breaker is not tripped.
mc70525-1
The power trim system is protected from overload by a 110 amp fuse and a 20 amp spade
fuse on the power trim pump. The trim pump may also have an in‑line circuit protection
device in the power trim positive lead near the battery switch or battery connection.
a
b
9208
a - 20 amp spade fuse
b - 110 amp fuse

MerCruiser 3.0 MPI Specifications

General

Horsepower	135 hp (101 kW)
Ignition	Electronic
Cylinders	4
Aspiration	Naturally Aspirated
Compression Ratio	9.3:1
Full Throttle RPM	4400-4800 RPM
Displacement	3.0L / 181 CID
Fuel System	Multi-Port Injection (MPI)
Bore x Stroke	4.00" x 3.60" (101.6mm x 91.4mm)
Fuel Requirement	87 Octane Minimum
Engine Type	Inline 4
Cooling System	Raw water
Alternator Output	65 amp