Oil filter and oil cooler mounting arrangement for a four-cycle motorcycle engine

An oil filter and oil cooler mounting arrangement for a four-cycle engine for use in a motorcycle wherein an inline multi-cylinder engine comprises:

• a crankshaft laid out widthwise across the bodywork and mounted in the front lower part of the bodywork;
• an oil pan having both side surfaces inclined;
• and a multiple number of exhaust pipes extended from the front upper part of the engine to the lower part of the engine and bent toward the rear while being split to the left and right along the inclined side surfaces, characterized in that an oil filter and oil cooler are arranged side by side and projected forwards in the lower front part of the engine;
• the oil cooler has its fastening sites at both sides when viewed from the front;
• and the exhaust pipes are arranged so that spacings are formed between the two adjacent exhaust pipes, at least, in front of the center of the oil filter and in front of the inner fastening sites of the oil cooler, respectively.