An air/oil-cooled internal combustion engine capable of increasing accuracy in detection of the temperature of the air/oil-cooled internal combustion engine by a temperature sensor and carrying out the warm-up operation after the start-up of the air/oil-cooled internal combustion engine favorably. The air/oil-cooled internal combustion engine includes cooling fins that are provided on the circumferences of a cylinder block and a cylinder head; and a cooling passage that is provided in a combustion chamber upper wall covering a combustion chamber of the cylinder head and is used for cooling the combustion chamber upper wall with lubrication oil. The air/oil-cooled internal combustion engine has a temperature sensor configured to detect the temperature of the air/oil-cooled internal combustion engine by detecting the temperature of oil. The temperature sensor faces a cooling oil outlet portion of the cooling passage.

An air/oil-cooled internal combustion engine capable of increasing accuracy in detection of the temperature of the air/oil-cooled internal combustion engine by a temperature sensor and carrying out the warm-up operation after the start-up of the air/oil-cooled internal combustion engine favorably. The air/oil-cooled internal combustion engine includes cooling fins that are provided on the circumferences of a cylinder block and a cylinder head; and a cooling passage that is provided in a combustion chamber upper wall covering a combustion chamber of the cylinder head and is used for cooling the combustion chamber upper wall with lubrication oil. The air/oil-cooled internal combustion engine has a temperature sensor configured to detect the temperature of the air/oil-cooled internal combustion engine by detecting the temperature of oil. The temperature sensor faces a cooling oil outlet portion of the cooling passage.

A cable lubrication device for directing pressurized lubricant into the internal space of a control cable, the cable lubrication device having a main body tube, a locking ring, a plunger and a spiral-cut seal.

The present disclosure provides systems, devices and methods for using an oiling tool that allows the mechanic to apply a stream of atomized spray of oil to the top of the inner links of a motorcycle chain and on both sides as the chain is turned along with the motorcycle wheel.

The present disclosure provides systems, devices and methods for using an oiling tool that allows the mechanic to apply a stream of atomized spray of oil to the top of the inner links of a motorcycle chain and on both sides as the chain is turned along with the motorcycle wheel.

A tool (10) for lubricating a chain (50), e.g. of a motorbike or bicycle, includes a block that defines a chain passage (22) through the block for receiving the chain (50). A first lubricant channel (438) through the block can be used to apply lubricant (56) into the chain passage where it is directed onto the chain. A second lubricant channel (300) can collect excess lubricant to allow the lubricant to drain and be collected for tidier operation. Lubricant channels can be provided for both aerosol and liquid lubricants.

A tool (10) for lubricating a chain (50), e.g. of a motorbike or bicycle, includes a block that defines a chain passage (22) through the block for receiving the chain (50). A first lubricant channel (438) through the block can be used to apply lubricant (56) into the chain passage where it is directed onto the chain. A second lubricant channel (300) can collect excess lubricant to allow the lubricant to drain and be collected for tidier operation. Lubricant channels can be provided for both aerosol and liquid lubricants.

A frame structure of a straddle-type vehicle in which a vehicle body frame is used as an oil tank. The frame structure includes a head pipe located at a front portion of the vehicle body frame, a rear plate connecting left and right tank rails, at an upper rear side of the head pipe, a down frame having a tubular shape and extending downward from a lower rear side of the head pipe, a reinforcement connected to a rear surface of the down frame, below the rear plate, and an oil inlet attached to the rear plate and forming an oil injection port. An oil storage space is formed on inner sides of the down frame and the reinforcement. The oil inlet penetrates the rear plate and enters the storage space.

A frame structure of a straddle-type vehicle in which a vehicle body frame is used as an oil tank. The frame structure includes a head pipe located at a front portion of the vehicle body frame, a rear plate connecting left and right tank rails, at an upper rear side of the head pipe, a down frame having a tubular shape and extending downward from a lower rear side of the head pipe, a reinforcement connected to a rear surface of the down frame, below the rear plate, and an oil inlet attached to the rear plate and forming an oil injection port. An oil storage space is formed on inner sides of the down frame and the reinforcement. The oil inlet penetrates the rear plate and enters the storage space.