Lawn mower coil good but no spark. Lawn mower owners, this ignition coil and spark plug combo will solve most no-start issues! The 591459 coil replaces multiple part numbers including 492341, 490586, 491312, 495859, and works with various Briggs & Stratton engines from 10-15HP. Sometimes, lack of gas doesn’t allow sparks. There are several things to know about a lawn mower that is not sparking. Jan 18, 2026 · In this article, we’ll walk you through the common causes of no spark on a lawn mower and provide you with practical tips and solutions to get your mower roaring back to life. New Spark Plug (Optional but Recommended): A good time to replace it while you’re at it. Distributor spark plugs New coil pack new fuel pump new fuel filter a year old injectors Egr is still good all the ports. If you still have no spark, it is most likely a failed coil, but it is best to check the on/off switch assembly first. New Air Filter (Optional but Recommended): Another common maintenance item. I’ve replaced the spark plug and changed the oil with Honda 4-stroke, but the issue persists. Nov 5, 2019 · If you have no spark, swap out the plug and test again. Shipped with USPS Ground Advantage. Jun 16, 2023 · Learn why your new coil may not produce a spark and how to fix it. Is there no spark in the engine of your lawn mower, snow blower or outdoor power equipment? Follow this guide to test your ignition system - including coil, switch & module - to identify any problems and troubleshoot repairs. Vintage LAWN BOY LAWNBOY 21 Mower Ignition Cool POINTS Spark CONDENSER. This article provides all possible reasons behind the no spark in the mower and how to fix them. Now, grab your tools and follow our tips. Condition is Used. 4 days ago · Oil Extractor Pump (Optional): If your mower doesn’t have a drain plug, this tool makes the job much cleaner. With the know-how to troubleshoot a lawn mower coil that’s good but lacks a spark, you can now confidently tackle this issue. Had a new. . Oct 1, 2025 · Yes, disconnecting the kill "safety" wire will allow it to produce spark, but the engine has to be spun fast enough, and the air gap needs to be correct with the coil tightly mounted. A simple paper business card is good enough for setting the air gap between the coil and the flywheel magnet. Check the coil air gap, flywheel magnets, corrosion and ground wire for common issues. Hi group, I recently bought a second-hand mower that worked fine initially but started turning off shortly after starting, especially when mowing longer grass, indicating it might need extra power. I have 2006 Hustler super mini z with the FH721v Kawasaki engine. And fast idle valve every thing is in its correct order but when I drive the car bogs out at 30 mph then it goes. Are cleaned and not clog all new vacuum hoses the car dose not have any vacuum leaks new Iacv valve. Paired with the RC12YC spark plug, this set addresses the most common ignition problems in small engines. I now have it running good but it randomly blows the 5 amp fuse any ideas? I know it must be a short somewhere but don’t know where. aqoox polq dzodzul sdae yzdfo ifl gnd lijvt demetb ksutk