How To Troubleshoot & Test The Ignition System On Your 1994 - 2001 Yamaha YZ125
Electrical troubleshooting can get very frustrating, and it's very easy to lose track of what you've done and still need to do, so write down everything you need to test, then as you go, write down 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.
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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.
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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
#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
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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
Негізгі бет 94-01 Yamaha YZ125 - Ignition Troubleshooting & Testing | FYDB
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