7 Minute Stihl Fix! Stihl MS170 Won't Start Repair

At Shade Tree Mower Mechanic, we repair many types of lawn equipment for our customers which include but not limited to: Lawn mowers, chainsaws, hedgers, string trimmers, and many more. Learn how to diagnose and repair all your lawn equipment under the shade tree Is your Stihl MS170 chainsaw refusing to start? Before you spend $50 on a new ignition coil, watch this! Today under the shade tree, we’re diagnosing a saw that seems to have no spark. It only took 7 minutes to find the culprit and get this saw screaming again. The Details: In this video, I walk you through a professional diagnostic flow: starting fluid tests, using a spark tester to find a "weak spark," and why a spark plug that "looks fine" can still be the reason your engine won't pop. I also show you how to gap your new plug (.025") for peak performance. Key Moments (Timestamps): 0:00 Intro: The Stihl MS170 No-Start Issue 0:42 The Starting Fluid Test (Does it pop?) 1:25 Using the Spark Tester: Diagnosis Begins 2:50 Weak Spark vs. No Spark: Is it a bad coil? 4:05 Checking the Old Spark Plug 5:10 Gapping (.025") and Installing the New Plug 6:15 The First Start & 7-Minute Victory! 6:50 Pro Tips for Chainsaw Maintenance Keywords: Stihl MS170 repair, chainsaw won't start, Stihl chainsaw no spark, 7 minute chainsaw fix, change spark plug Stihl, MS170 troubleshooting, small engine repair, shade tree mower mechanic, chainsaw diagnostic guide.