![[#15] Oil Strainer Screen Filter Yamaha OEM #19 (Bws/Zuma 50F & 50X) Dr. Evo ignition advance is automatically adjusted](https://cdn.shopify.com/s/files/1/0518/6057/0291/files/Oil_Strainer_Screen_Filter_Yamaha_OEM_19_Bws_Zuma_50.jpg?v=1774543389)
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[#15] Oil Strainer Screen Filter Yamaha OEM #19 (Bws Zuma 50F & 50X) Dr. Evo ignition advance is automatically adjusted ignition advance is automatically adjusted according to engine speed to provide maximum performance and responsiveness 6mm single segment piston with a 14mm axis and requires a crankshaft with a stroke of 44