Mercury 300 - PRO MAX 3.0L - Specifications

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GENERAL INFORMATION
Specifications
Models 300 - Pro Max 3.0L
Propshaft Horsepower 300
Propshaft Kilowatts 224
ECU Box Rev Limit 6200
Idle RPM (In or Out of Gear) 650 RPM
Weight
465 lbs.
(211 kg)
Piston Displacement 185 cu. in. (3044cc)
Bore 3.626 in. (92.1mm)
Stroke 3.00 in (76.2 mm)
Recommended Spark Plug Champion QL77CC (.035” Gap)
Firing Order 1-2-3-4-5-6
Idle Speed Pickup Timing Non Adjustable
Fuel Pressure 38-40 psi. (262-276 kPa)
Min. Water Pres.
@ 7500 -5500 RPM
12 psi. Minimum
Fleetmaster
Gear Ratio Torquemaster
Sportmaster
1.75:1
1.75:1
1.62:1 or 1.75:1
Recommended Gasoline Refer to Fuel Section
Recommended Oil Refer to Fuel Section
Recommended Gear Case
Oil
Mercury Precision Hi-Performance
Gear Lube (92-802854A1)
Gear Case Lubricant Cap. 27 fl. oz. (798 ml)
Battery Rating
Minimum reserve capacity rating
of 100 minutes and CCA of 350
Charging System Output 60 amps Max. (847Watts)