94-01 Yamaha YZ125 Ignition Troubleshooting & Testing | #yz125 #yamaha #fixyourdirtbike

1994 - 2001 Yamaha YZ125 Ignition Troubleshooting & Testing. See The Step-by-Step Walkthrough Here → http://bit.ly/9401yz125ign Follow Me! Youtube    / @fixyourdirtbike   Instagram   / fixyourdirtbike   Facebook   / fixyourdirtbike   ---------------------------------------- Service Notes: Yamaha YZ125 Ignition troubleshooting can be very frustrating, and it's easy to lose track of what you've done and what you still need to do. Therefore, write down everything you need to test, and as you go, record the test results. You want to start with the simplest solution; there's no sense replacing the stator when all you had was a ground fault. So start with the spark plug, then work your way back to the stator. You can only test the CDI through the process of elimination, so if everything else is tested within spec, the CDI will need to be replaced. For whatever reason, Yamaha does not provide peak voltage specs for anything, so If you want to do a physical test of your ignition coil, you will need to take it to a shop and have it tested. My YZ 125 has spark, but it's very weak. My bike will start idle and rev just fine, but as soon as it's under load, it chokes out. When I pull the plug, it's wet, not damp, but wet with oil. I know it's not a carb issue, but I'll get into that in the carb video. After working through this troubleshooting procedure, I found that the resistance of the primary winding of my ignition coil was metering way out of spec. You will need a multimeter if you get to the ignition coil and stator. ---------------------------------------- Intro - 0:00 Troubleshooting Prep - 0:45 Ground Fault - 1:35 Spark Test - 2:14 Component Test: Ignition Coil - 3:15 Component Test: Stator Coils - 4:10 Component Test: Stator Coils 1994 1995 - 4:34 Component Test: Stator Coils 1996 2001 - 5:12 ---------------------------------------- You Can Get All The Dirt Bike Parts And Tools You Need HERE! → https://amzn.to/3gM6L6Z Check out My New Merch! → https://bit.ly/FYDBMerch #Yamahayz125 #Ignition #FixYourDirtBike 1994 Yamaha YZ125 1995 Yamaha YZ125 1996 Yamaha YZ125 1997 Yamaha YZ125 1998 Yamaha YZ125 1999 Yamaha YZ125 2000 Yamaha YZ125 2001 Yamaha YZ125 ----------------------------------------------------------- Questions? Website: FixYourDirtBike.com Directory: FixYourDirtBike.com/Directory Facebook: FaceBook.com/FixYourDirtBike Forums: FixYourDirtBike.com/Forums Instagram:   / fixyourdirtbike   Twitter:   / fixyourdirtbike   You can help me take Fix Your Dirt Bike to the next level by supporting me At Patreon -   / fixyourdirtbike   and buying your parts here - https://www.fixyourdirtbike.com/shop-... My Recording Gear: Camera: Cannon 70D - https://amzn.to/3zwY3ki Camera: Cannon 80D - https://amzn.to/3DwcCXv Camera: GoPro Hero 4 Black - https://amzn.to/3mJt4h9 Camera: GoPro Hero 8 Black - https://amzn.to/3Dv9SKa Camera: Android Endoscope - https://amzn.to/3kwtVPG Microphone: Rode Videomic - https://amzn.to/3kAj3jT Lighting: Fancierstudio 2400 Watt Lighting Kit - https://amzn.to/2YcFUKM All media, unless otherwise specified, is the property of Mantle Media & Consulting, Inc 2021. As an Amazon Associate I earn from qualifying purchases. 00:00 Introduction 00:45 Troubleshooting Prep 01:35 Ground Fault 02:14 Spark Test 03:15 Component Test: Ignition Coil 04:10 Component Test: Stator Coils 04:34 Component Test: Stator Coils 1994-1995 05:12 Component Test: Stator Coils 1996-2001