ENGINE
PROBLEM TO BE SOLVED: To aim at lowering costs by reducing processing of part for introducing secondary air, and enable to make it hard for foreign substance to stick to passage of secondary air. SOLUTION: This engine forms, near exhaust hole of cylinder head 6, air intake pipe connection part 18 pr...
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Zusammenfassung: | PROBLEM TO BE SOLVED: To aim at lowering costs by reducing processing of part for introducing secondary air, and enable to make it hard for foreign substance to stick to passage of secondary air. SOLUTION: This engine forms, near exhaust hole of cylinder head 6, air intake pipe connection part 18 protruding toward the direction orthogonal with cylinder axis. This connection part 18 is equipped with a flat face 25 at the same plane as mating face 24 for cylinder body connection. On this flat face 25, secondary air intake passage 26 is bored extending to exhaust port 19. To this passage 26, secondary air intake system 14 is connected. |
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