A fuel injection device injects fuel per each cylinder in an engine having a plurality of cylinders #1 and #2. At a time of engine actuation, start timings of fuel injections are shifted per each cylinder and times within one rotation of a crankshaft is set as the injection start timings for all cylinders. At least the initial fuel injection is performed before cylinder discrimination.

A fuel injection device injects fuel per each cylinder in an engine having a plurality of cylinders #1 and #2. At a time of engine actuation, start timings of fuel injections are shifted per each cylinder and times within one rotation of a crankshaft is set as the injection start timings for all cylinders. At least the initial fuel injection is performed before cylinder discrimination.

A device designed to be a fixture for a commercially available battery operated drill/driver gun to start an internal combustion engine such as a model airplane engine by pressing the device onto the nose cone of the engine. The portion of the device which comes into contact with the nose cone of the engine is a cylinder connected to a shaft with a one way clutch. A rubber or silicone adapter is inserted into the cylinder attached to the shaft; the adaptor cone of the engine fits into the rubber or silicone adapter on the device.

A system for disassembling a drive pinion assembly of a starter motor is disclosed. The drive pinion assembly includes a drive gear and a pinion member coupled to the drive gear through a mounting hole defined in the drive gear. The system includes a base member for supporting the drive pinion assembly. The base member includes a through hole to align with the mounting hole of the drive gear. The system further includes a pin member slidably received in the through hole and an actuating member disposed around the base member. The actuating member is rotatable about a rotational axis defined by the base member. The actuating member includes a cam lobe for moving the pin member towards the mounting hole of the drive gear based on movement of the actuating member about the rotational axis to disassemble the pinion member from the drive gear.