What causes a no spark condition open loop?
What causes a no spark condition open loop?
If after unplugging the 4-plug connector there is no spark or the spark still looks weak, this tells you that the problem is in the major ignition components like the stator, coils, cdi, spark plugs, spark plug wires, possibly a short in the wiring harness, a bad trigger coil or on EFI models your Injector Coils are bad (they measure 19-20ohms).
How to diagnose no spark or weak spark?
Diagnosing no spark, weak spark or intermittent spark issues First is separating the issue between switches or the primary ignition components like the stator, cdi, coils, trigger coil or possibly plugs or plug wires or plug caps.
What are the issues with a no spark motor?
Other issues related to a no spark/Weak Spark/Wet Plugs issue: Wrong flywheel on it. Sled was only running on one cylinder. Low side coil on his stator read 360 ohms and it should have measured 450 ohms. The low side coil was bad. It kept fouling plugs left and right. The guy before ran ethanol, and never told the current owner.
What causes a spark plug not to spark?
The following information helps to identify the causes of weak spark, no spark or intermittent spark. Check for one or more possible malfunctions: No spark or weak spark to one cylinder. Non-resistor spark plugs in use. Spark plug worn, fouled or damaged. Poor connection at spark plug cap to high tension lead.
If after unplugging the 4-plug connector there is no spark or the spark still looks weak, this tells you that the problem is in the major ignition components like the stator, coils, cdi, spark plugs, spark plug wires, possibly a short in the wiring harness, a bad trigger coil or on EFI models your Injector Coils are bad (they measure 19-20ohms).
Diagnosing no spark, weak spark or intermittent spark issues First is separating the issue between switches or the primary ignition components like the stator, cdi, coils, trigger coil or possibly plugs or plug wires or plug caps.
Other issues related to a no spark/Weak Spark/Wet Plugs issue: Wrong flywheel on it. Sled was only running on one cylinder. Low side coil on his stator read 360 ohms and it should have measured 450 ohms. The low side coil was bad. It kept fouling plugs left and right. The guy before ran ethanol, and never told the current owner.
Why does my spark plug keep misfireing?
The erosion gradually increases the gap between the electrodes, which, in turn, increases the firing voltage required to generate a spark. Eventually the ignition system reaches a point where it fails to produce enough voltage and the plug misfires. Bad spark plug wires are another common cause of misfires.
