Abstract: A signal conditioning module for a wide-band oxygen sensor and methods of installing the same. One signal conditioning module includes an electronic processor, a first electrical coupling, and a second electrical coupling. The first coupling is configured to be coupled to a port of an electrical harness. The power is configured to receive an electrical coupling of a narrow-band oxygen sensor signal for providing power to the narrow-band oxygen sensor. The second coupling is configured to be coupled to the wide-band oxygen sensor. The electronic processor receives power over the first coupling, powers the wide-band oxygen sensor over the second coupling using the received power, receives first data over the second coupling from the wide-band oxygen sensor, converts the first data to second data, and outputs the second data over the first coupling to the electrical harness for transmission to an electronic control unit coupled to the electrical harness.

Abstract: A cylinder head for a motorcycle engine in which the cylinder head includes an intake side including an intake passage and an intake valve movably disposed within the intake passage, and an exhaust side including an exhaust passage and an exhaust valve movably disposed within the exhaust passage, the exhaust side being positioned remote from the intake side. A cooling liquid inlet port and a cooling liquid discharge port are located on the intake side. A cooling liquid passage runs through the cylinder head to reduce an operating temperature of the cylinder head.

Abstract: A cylinder head for a motorcycle engine, which has a pair of cylinders arranged in a “V” configuration such that the cylinders converge toward a crankshaft axis and such that a space is defined between the cylinders at an upper extent of each of the cylinders. The cylinder head includes a base configured to be coupled to one of the cylinders, an intake side including an intake passage and an intake valve movable disposed within the intake passage, the intake side being positioned adjacent the space, and an exhaust side including an exhaust passage and an exhaust valve movable disposed within the exhaust passage, the exhaust side being positioned remote from the space. A cooling liquid inlet port and a cooling liquid discharge port are located on the intake side. A cooling liquid passage runs through the cylinder head to reduce an operating temperature of the cylinder head.

Abstract: A cylinder head for a motorcycle engine in which the cylinder head includes an intake side including an intake passage and an intake valve movably disposed within the intake passage, and an exhaust side including an exhaust passage and an exhaust valve movably disposed within the exhaust passage, the exhaust side being positioned remote from the intake side. A cooling liquid inlet port and a cooling liquid discharge port are located on the intake side. A cooling liquid passage runs through the cylinder head to reduce an operating temperature of the cylinder head.

Abstract: A cylinder head for a motorcycle engine, which has a pair of cylinders arranged in a “V” configuration such that the cylinders converge toward a crankshaft axis and such that a space is defined between the cylinders at an upper extent of each of the cylinders. The cylinder head includes a base configured to be coupled to one of the cylinders, an intake side including an intake passage and an intake valve movable disposed within the intake passage, the intake side being positioned adjacent the space, and an exhaust side including an exhaust passage and an exhaust valve movable disposed within the exhaust passage, the exhaust side being positioned remote from the space. A cooling liquid inlet port and a cooling liquid discharge port are located on the intake side. A cooling liquid passage runs through the cylinder head to reduce an operating temperature of the cylinder head.

Abstract: An outboard motor is presented that includes a control unit to control operation of an internal combustion engine and automated components of the motor. An array of indicators is associated with the control unit directly on an external or visible surface thereof or integrally formed therewith. The indicators may be independently activated to convey diagnostic information regarding engine operation. The control unit controls activation of the indicators in such a manner such that different diagnostic data is conveyed depending upon whether the engine is in an operating or starting mode.

Abstract: A control unit assembly is disclosed including a housing, at least one processor to control operation of an engine, and a voltage regulator configured to regulate a voltage of at least one rail of the engine. The at least one processing unit and the voltage regulator reside on a common circuit board.

Abstract: A method and system of throttle calibration control is presented that includes a TPS designed to provide an output indicative of throttle plate position when the throttle plate is opened and provide an output of throttle actuator position when the throttle plate is closed. The TPS output is received by an ECU to control subsequent engine operation. When an input is received from the TPS indicating that the throttle actuator is within a pre-set idle throttle position range and below an idle position benchmark, the ECU automatically reestablishes present and subsequent engine operation.

Abstract: A system and method to dynamically control a switching alternator is disclosed. A switching alternator system is disclosed that includes a plurality of windings configured to deliver an AC power and a plurality of switches configured to switch an electrical configuration of the plurality of windings. A processor is included that is programmed to control the plurality of switches to deliver a desired DC power.

Abstract: An apparatus and method for conditioning an internal combustion engine for storage is disclosed. The engine includes an ECU that is programmed to initiate an auto-fogging procedure. The auto-fogging procedure automatically introduces increased amounts of lubricating oil into the engine thereby coating the cylinders and some of the internal components of the engine with a protective film of oil for storage.

Abstract: A shift enabling interrupt system that facilitates the shifting of gears of an outboard engine is disclosed. The system is activated by the signal from a sensor that determines if the user is attempting to shift the gears by detecting a lost motion in a shift linkage manually activated by the user to shift the gear train of the engine. Upon such activation, the system ECU carries out a set of steps that periodically reduce the speed of the engine by disabling one or more cylinders to facilitate the gear shift. After a predetermined number of revolutions, the disabled cylinders are again enabled to return the engine speed back to normal operation. A timer establishes a maximum elapsed time to complete the shifting operation and the gear shifting itself is only permitted if the RPM of the engine is less that a predetermined value.

Abstract: The present invention provides a system and method to adjust the quantity of oil delivered to the cylinders of an internal combustion engine of an outboard motor. The system includes an oiling system to distribute oil throughout the internal combustion engine. The oiling system has a pressure sensor connected between an oil injector and the internal combustion engine to sense oil pressure and produce an oil pressure indicative signal to an electronic control unit (ECU). The ECU is configured to monitor the oil pressure indicative signal and modify a modulated oil injection signal delivered to the oil injector.

Abstract: An electronic control unit for a combustion engine having a water coolant passageway in heat transfer adjacency to the unit and adapted to remove heat from the unit. An ECU for combustion engine, comprising: electrical input circuits, electrical control circuits, electrical fuel injection output drive circuits, electrical oil pump output drive circuits and electrical ignition circuits. An ECU is disclosed which is adapted to verify firing of the ignition coils of the engine.

Abstract: The present invention provides a system and method to adjust temporarily the quantity of fuel delivered to the cylinders of a fuel injected engine. The present invention allows a service technician to temporarily adjust the quantity of fuel being delivered to each cylinder or all cylinders of an internal combustion engine. The system includes an internal combustion engine having therein an electronic control unit capable of controlling the fuel quantity delivered to each cylinder and a general service computer connectable thereto and capable of transmitting data to the ECU. When instructed by the service technician, the service computer sends signals to the ECU to adjust fuel injector data to the fuel injectors of so as to increase or decrease the amount of fuel being delivered to the fuel injected engine.

Abstract: An electronic control unit for a combustion engine having a water coolant passageway in heat transfer adjacency to the unit and adapted to remove heat from the unit. An ECU for combustion engine, comprising: electrical input circuits, electrical control circuits, electrical fuel injection output drive circuits, electrical oil pump output drive circuits and electrical ignition circuits. An ECU is disclosed which is adapted to verify firing of the ignition coils of the engine.

Abstract: The present invention provides a system and method to adjust the quantity of oil delivered to the cylinders of an internal combustion engine of an outboard motor. The system includes an oiling system to distribute oil throughout the internal combustion engine. The oiling system has a pressure sensor connected between an oil injector and the internal combustion engine to sense oil pressure and produce an oil pressure indicative signal to an electronic control unit (ECU). The ECU is configured to monitor the oil pressure indicative signal and modify a modulated oil injection signal delivered to the oil injector.

Abstract: Methods and apparatus for testing operation and diagnosing faults in an engine including an electronic control unit. A diagnostic computer is coupled to the electronic control unit and displays engine testing and diagnostic text messages in any one of a plurality of selectable languages, energize ignition circuits on demand, display menu screen displays associated with engine testing, diagnostics and service, and generate summary screen displays and reports for later use.

Abstract: Methods and apparatus for testing operation and diagnosing faults in an engine including an electronic control unit. A diagnostic computer is coupled to the electronic control unit and displays engine testing and diagnostic text messages in any one of a plurality of selectable languages, energize ignition circuits on demand, display menu screen displays associated with engine testing, diagnostics and service, and generate summary screen displays and reports for later use.

Abstract: Methods and apparatus for testing operation and diagnosing faults in an engine including an electronic control unit. A diagnostic computer is coupled to the electronic control unit and displays engine testing and diagnostic text messages in any one of a plurality of selectable languages, energize ignition circuits on demand, display menu screen displays associated with engine testing, diagnostics and service, and generate summary screen displays and reports for later use.

Abstract: An electronic control unit for a combustion engine having a water coolant passageway in heat transfer adjacency to the unit and adapted to remove heat from the unit. An ECU for combustion engine, comprising: electrical input circuits, electrical control circuits, electrical fuel injection output drive circuits, electrical oil pump output drive circuits and electrical ignition circuits. An ECU is disclosed which is adapted to verify firing of the ignition coils of the engine.