| 摘要 |
PROBLEM TO BE SOLVED: To prevent the invasion of foreign matters into a blower housing without covering an engine. SOLUTION: An extension portion 23 is extended to a seal portion 22 of a gasket 21 fitted between a flange 11 of an exhaust port 10 and a muffler 4 to cover a clearance formed among part of a bracket 14 for fitting a speed control lever 8 exposed between a filter 3 and the muffler 4, part of the flange 11 of the exhaust port 10 and an ignition plug 15 and communicated with inside of the blower housing 18. By this structure, the invasion of the foreign matters into the blower housing 18 can be prevented. In addition, by turning a flow of cooling air to a cylinder head 9 side, cooling performance can be improved. COPYRIGHT: (C)2004,JPO&NCIPI
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