Mercury 300XS OptiMax User Manual

TABLE OF CONTENTS
vi
Transporting
Trailering Boat/Outboard .......................................................... 38
Fuel and Oil
Avoiding Fuel Flow Restrictions.................................................39
Fuel Requirements....................................................................39
Oil Recommendation.................................................................41
Filling Remote Oil Tank.............................................................41
Filling Engine Mounted Oil Reservoir Tank...............................42
Filling Fuel Tank........................................................................42
Features and Controls
Remote Control Features..........................................................44
Zero Effort Control Features......................................................45
Warning System........................................................................45
Overspeed Rev Limit.................................................................48
Power Trim And Tilt...................................................................48
Power Trim Operation ...............................................................49
Power Tilt Operation (Single-Ram Systems).............................51
Power Tilt Operation (Three-Ram Trim Systems).....................51
Auxiliary Tilt Switch....................................................................52
Manual Tilt Operation................................................................53
Operation
Engine Break-in.........................................................................54
Engine Break-in Fuel Mixture....................................................54
Pre-Starting Check List..............................................................55
Operating at Off-Idle Speeds.....................................................55
Operating In Freezing Temperatures.........................................55
Operating In Salt Water Or Polluted Water................................55
Operating at High Elevations.....................................................56
Effects of Elevation and Weather on Performance....................56
Setting Trim Angle While Running Engine at Idle Speed..........57

Mercury 300XS OptiMax Specifications

General

Engine Type	2-Stroke
Horsepower	300 HP
Alternator Output	60 amp / 756 watt
Gear Ratio	1.75:1
Starting System	Electric
Fuel System	2-Stage Direct Fuel Injection (DFI)
Weight	505 lbs / 229 kg
Cylinders	6
Steering	Hydraulic
Shaft Length	25"