Here is the difference for both 150s note amps and cc for both and
In-Line Four-Cylinder
In-Line 4 Cyclinder
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2670 cc (Mechanical) / 2785 cc (DEC)
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94x96.2mm (Mechanical) / 96x96.2 mm (DEC)
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5000-6000
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9.0:1 (Mechanical) / 10.3:1 (DEC)
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DOHC Electronic Fuel Injection
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36 Amps (Mechanical) / 50 Amps (DEC)
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—
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Electric w/ PTT
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TCI microcomputer
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Wet Sump
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-4° through +16°/70°
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Through Prop
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Water/Thermostatic Control
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F/N/R
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14:28 (2.00)
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In-Line Four-Cylinder
In-Line 4 Cyclinder
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DISPLACEMENT
2785cc (170 ci)2670 cc (Mechanical) / 2785 cc (DEC)
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BORE & STROKE
96 x 96.2mm (3.78 x 3.79 in)94x96.2mm (Mechanical) / 96x96.2 mm (DEC)
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RPM RANGE
5,000-6,0005000-6000
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COMPRESSION RATIO
10.3:19.0:1 (Mechanical) / 10.3:1 (DEC)
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INDUCTION SYSTEM
EFI (DOHC) with variable camshaft timing (VCT)DOHC Electronic Fuel Injection
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ALTERNATOR OUTPUT
50 Amps36 Amps (Mechanical) / 50 Amps (DEC)
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FUEL DELIVERY
Multi-point electronic fuel injection—
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STARTING
Electric w/PTTElectric w/ PTT
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IGNITION
TCI MicrocomputerTCI microcomputer
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LUBRICATION
Wet sumpWet Sump
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DEGREE OF TRIM/TILT
-4° through +16°-4° through +16°/70°
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EXHAUST
Through PropellerThrough Prop
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COOLING
Thermostatic ControlWater/Thermostatic Control
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GEAR SHIFT
F/N/RF/N/R
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GEAR RATIO
28/14 (2.0:1)14:28 (2.00)
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