The Yamaha Ignition Pack CDI Electronics (117-6H4-21) is responsible for igniting each engine cylinder's spark plug. A low voltage current runs from the battery through the primary windings of the ignition coil, past the breaker points, and back to the battery when the ignition key is turned on. The development of a magnetic field that surrounds the coils creates the current flow. An ignition coil pack is a transformer that raises low voltage from the battery to a level that can generate a spark to bridge the gap in a spark plug, igniting the gasoline and air in an engine's cylinder.
Key Features:
Product Details:
1984-1988 (40 & 50HP)
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You may return most new, unopened items within 30 days of delivery for a full refund. We'll also pay the return shipping costs if the return is a result of our error (you received an incorrect or defective item, etc.)
You should expect to receive your refund within four weeks of giving your package to the return shipper, however, in many cases you will receive a refund more quickly. This time period includes the transit time for us to receive your return from the shipper (5 to 10 business days), the time it takes us to process your return once we receive it (3 to 5 business days), and the time it takes your bank to process our refund request (5 to 10 business days).
If you need to return an item, please Contact Us with your order number and details about the product you would like to return. We will respond quickly with instructions for how to return items from your order.
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