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Why do I have power to my coil but no spark?
There are a few reasons for no spark, new coil pack could be defective, crank sensor, ignition module or bad wire in primary circuit, faulty ECM/PCM. You may have to have a good technician have a look, diagnose and estimate repair. Second link gives detailed instructions for testing and diagnosing coil pack.
Can CDI cause no spark?
Sometimes, a bad CDI does not cause sparks at all. Again, when a CDI box is about to go bad, it can lead to misfires, issues with starting, rough running or even stall the motor. Therefore, the only way you can tell whether your CDI has a problem is by confirming that everything else is in the right condition.
How can I fix no spark?
First, Confirm Your Engine Has No Spark:
- Disable the fuel system by removing the fuel pump fuse or relay.
- Insert a spark plug tester into the plug boot and ground it on a piece of metal on the engine.
- Finally, Have someone crank the engine and watch for spark.
Why does my GY6 scooter have no spark?
The best way to tell if the coil is bad is to perform steps the steps above. If there is still no spark, the coil is likely bad. The plug is very rarely the cause of no spark on the GY6. If the plug is fouled or cracked it may not spark.
What should the gap be on a GY6 spark plug?
Check for proper plug gap! The plug is very rarely the cause of no spark on the GY6. If the plug is fouled or cracked it may not spark. Ensure that the spark plug is gapped properly.Recommended spark plug gap: 0.6mm ~ 0.7mm (0.23″ ~ 0.27″)
Is the GY6 150cc ignition system easy to troubleshoot?
The first version was downloaded over 136,494 times and we’re happy that this information continues to help so many people! The 150cc GY6 ignition system is fairly easy to troubleshoot in the case of malfunction. There are 4 major components that work together to produce spark, if any of these are defective spark will be lost.
Where to find jumper wire for GY6 150cc engine?
Create a jumper wire from pin #4 directly to a good grounding spot on the engine. Being very careful not to deform or break the pin, remove the #5 wire from the CDI plug at the harness.