| 摘要 |
PURPOSE:To improve engine performance and durability of an air-cleaner by forming a guide part where a clean side in an air-cleaner body is partitioned into compartments by a bulkhead and the bulkhead is inserted into at least either the air-cleaner body or a filter holder. CONSTITUTION:Sucked air from dark-side compartments 32A, B respectively which is purified by means of an air filter 23 is supplied to the first and the second cylinders through clean-side compartments 33A, B respectively. Since a case bulkhead 28 is inserted into a recessed part 29 of a guide 30 of a filter holder 22, no leakage is made between the compartments 33A and 33B even when respective suction strokes of the first and the second cylinders may be duplicated. Thus, no diversification in suction quantity of a 2-cycle/2-cylinder engine which makes explosions at irregular intervals, leading to improvement of the engine performance. The case bulkhead 28 is inserted and fixed in the recessed part 29, and the abrasion between the filter holder 22 and the case bulkhead 28 can be prevented even when an air-cleaner 12 vibrates, resulting in improvement of the durability of the air-cleaner 12. |
