2008 Honda Aquatrax ARX1500T3/T3D factory service manual, Page 46Get this manual
TECHNICAL FEATURES
LIMIT MODE
GENERAL DESCRIPTION
In addition to ordinary running mode, this watercraft incorporates limit mode which limits the maximum running speed within 3545 mphTo initiate the limit mode, depress and hold the MODE button for more than seconds(Selectable only when engine is stopped) When the limit mode is selected, ECM controls the following when the engine speed is above 4,500 rpm- Deactivating the cylinder: Fuel injection halts completely on one of four cylinders; fuel injection halts every fourth time on another cylinder(example: When No1 cylinder is completely deactivated, fuel injection stops every fourth time on No4 cylinderRetarding the ignition timing: ECM retards the ignition timing on each cylinder- Limiting the boost pressure to the minimum The ECM switches the halted cylinders every 10 minutes to prevent the spark plugs from being wet(example: If No1 cylinder is completely deactivatedNo4 cylinder halts every fourth time for 10 minutes, No2 cylinder will be completely deactivated1No3 cylinder will halt every fourth time for next 10 minutes