STIHL ignition coils (high-voltage coils) of the MS070 and MS090 series for petrol chainsaws

Is your large, classic STIHL chainsaw hard to start, has a weak or irregular spark, or is it not starting at all? This is likely due to a worn ignition coil (high-voltage coil), an internal short circuit, or an insulation fault. This high-quality ignition coil, specially designed for STIHL 070, 090, MS070, MS090, and other large, classic chainsaws, restores your machine's optimal and reliable ignition performance. How the ignition coil works: The ignition coil (high-voltage coil) is a step-up transformer that converts the low voltage generated by the flywheel magneto into a high voltage of several tens of thousands of volts. This high voltage is then carried via the high-voltage cable and spark plug connector to the spark plug, where it creates a spark in the cylinder that ignites the fuel-air mixture. The condition of the ignition coil directly affects the engine's starting performance, power, and fuel consumption. Key Features: Adaptation to Original Electromagnetic Parameters: The primary and secondary resistance, inductance, and boost ratio of the ignition coil conform to the original specifications, ensuring perfect compatibility with the flywheel magnetos of the MS070/MS090. This results in precise ignition timing adjustment and optimal power output. Reinforced Core: The laminated core made of high-permeability silicon steel features low magnetic losses and high energy conversion efficiency, ensuring a sufficiently strong spark at various engine speeds. High-Voltage Insulation: The secondary coil features a multi-layer insulating structure combined with a high-quality epoxy resin coating. This guarantees that there will be no internal breakdowns or current leakage, even at voltages of several tens of thousands of volts. Shock-Resistant Construction: The internal components are secured using a special process and withstand the strong vibrations of a large chainsaw without loosening, cracking, or breaking. Pre-installed high-voltage cable: The ignition coil comes with a sufficiently long, high-quality, high-voltage-resistant, and oil-resistant high-voltage cable, allowing direct connection to the spark plug connector. Technical data: Part name: Ignition coil / High-voltage coil / Magneto ignition coil Compatible models: STIHL 070, STIHL 090, STIHL MS070, STIHL MS090, STIHL 041, STIHL 051, STIHL 075, STIHL 076, STIHL Contra, STIHL Contra S