| 摘要 |
PROBLEM TO BE SOLVED: To arrange a current-carrying circuit-breaker 3 close to an igniter 1 attached to an engine 4 and an ignition plug 2 to attach the current-carrying circuit breaker 3 to a bracket 5 of an ignition plug cover 6 and perform the maintenance of these ignition systems together in close sections so as to make the maintenance of the ignition systems convenient. SOLUTION: In a spark ignition type engine which is provided with the igniter 1, the ignition plug 2, and the current-carrying circuit-breaker 3 and attaches the igniter 1 and the ignition plug 2 to the engine 4 to break current- carrying from the igniter 1 to the ignition plug 2 by the current-carrying circuit- breaker 3, an ignition plug cover 6 is supported above the ignition plug 2 through the bracket 5, the current-carrying circuit-breaker 3 is attached to the bracket 5, and the current-carrying circuit-breaker 3 and the ignition plug 2 are covered with an ignition plug cover 6 from above.
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