| 摘要 |
<p>PROBLEM TO BE SOLVED: To achieve the size reduction of an internal combustion engine in which an exhaust gas sensor and a temperature sensor are attached to an engine body including a cylinder head including an ignition plug and a cam chain passage formed on respective both sides of a line connecting opening end centers of an intake port and an exhaust port to a combustion chamber, by collectively attaching the temperature sensor and the exhaust sensor compactly.SOLUTION: An exhaust gas sensor 80 is attached to an exhaust gas sensor attachment portion 82 formed in a cylinder head 28 so as to protrude a detection unit 80a of the exhaust gas sensor 80 into a curved passage portion 45c of an exhaust port 45 from outside of a curve, and a temperature sensor 81 is attached to a temperature sensor attachment portion 83 formed in the cylinder head 28 near the exhaust gas sensor attachment portion 82 so as to protrude a detection unit 81a of the temperature sensor 81 into a cam chain passage 65.</p> |
