The Kelly Aero ES917 Impulse Spring is a precision replacement component designed for use in Slick magneto impulse coupling assemblies. The spring provides the necessary mechanical force within the impulse mechanism to support proper magneto engagement during engine starting, helping generate the increased ignition energy required at low engine cranking speeds.

As a critical element of the magneto starting system, the impulse spring works with the coupling assembly to control spring tension, release timing, and rotational energy transfer. Proper operation of this component contributes to reliable spark generation during engine start and helps maintain dependable ignition performance.

Manufactured for aviation ignition system applications, the ES917 is intended for replacement during magneto inspection, overhaul, or repair procedures when wear, fatigue, or loss of spring tension is identified. Correct installation and inspection are essential for maintaining magneto reliability and overall engine starting performance.

Key Features

- Part Number: ES917
- Manufacturer: Kelly Aero
- Component: Impulse Spring for Slick Magneto
- Provides spring force within the magneto impulse coupling assembly
- Supports reliable engine starting ignition performance
- Designed for use during magneto inspection, overhaul, and maintenance
- Precision component for compatible Slick magneto applications