Mercury 300 XS OptiMax User Manual

GENERAL INFORMATION
36 eng
Specifications
Overspeed rev limit
20 in.
(Torque Master)
6350 RPM
20 in.
(Sport Master)
6350 RPM
25 in.
(Sport Master)
5900 RPM
30 in.
(Sport Master)
5900 RPM
25 in.
(Fleet Master)
5900 RPM
30 in.
(Fleet Master)
5900 RPM
Idle RPM 585 RPM
Neutral rev limit 1900 RPM
Cylinder configuration 60° V6
Cylinder bore 92.075 mm (3.625 in.)
Stroke 78.9 mm (3.110 in.)
Spark plug NGK IZFR7M
Spark plug gap 0.81 mm (0.032 in.)
Firing order 1‑2‑3‑4‑5‑6
Maximum timing Controlled by PCM
Idle timing Controlled by PCM
Fuel pressure 655 ± 13.8 kPa (95 ± 2 psi)
Air pressure 758 ± 13.8 kPa (110 ± 2 psi)
Gear ratio
Torque Master
1.62:1
1.75:1
Sport Master
1.62:1
1.75:1
Fleet Master 1.75:1
Required fuel
Premium unleaded
91 R+M/2 octane (96 RON)
Recommended oil Mercury Racing 2‑Stroke Oil
Gearcase oil Mercury Racing Gear Lube
Gearcase lubricant capacity 710 ml (24 fl oz)

Mercury 300 XS OptiMax Specifications

General

Brand	Mercury
Model	300 XS OptiMax
Category	Outboard Motor
Language	English