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frostyflammable · August 9th, 2021, 07:33 PM

My checking of the spark plugs wasn’t the most scientific one. I took both spark plugs out, connected them back to the wires and grounded the plug to the head, then cranked the bike and saw both plugs has spark. It was purely a visual test.

The wiring by the CDI box is looks original, no tampering with it. I’ll check the coils again but with the wiring length off the main harness not sure I could have reversed it but I’ll def double check that again tomorrow. I’ll read up in the manual if I can test the pickup somehow to make sure that is telling it when to fire correctly in the cycle process.

I did replace the spark plugs with brand new NGK CR8HSA gapped to 0.6-0.7mm before even starting the troubleshooting.

Appreciate the suggestions coming I’ll follow as soon as I can test if the coils are hooked up to their correct side.

Thanks.

August 9th, 2021, 07:33 PM	#8
frostyflammable Race, Brake, Fix, Repeat Name: Dan Location: DFW Join Date: Jul 2021 Motorcycle(s): 2006 Ninja 250 Posts: 43	My checking of the spark plugs wasn’t the most scientific one. I took both spark plugs out, connected them back to the wires and grounded the plug to the head, then cranked the bike and saw both plugs has spark. It was purely a visual test. The wiring by the CDI box is looks original, no tampering with it. I’ll check the coils again but with the wiring length off the main harness not sure I could have reversed it but I’ll def double check that again tomorrow. I’ll read up in the manual if I can test the pickup somehow to make sure that is telling it when to fire correctly in the cycle process. I did replace the spark plugs with brand new NGK CR8HSA gapped to 0.6-0.7mm before even starting the troubleshooting. Appreciate the suggestions coming I’ll follow as soon as I can test if the coils are hooked up to their correct side. Thanks.