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.
Why does my sportsman 500 have no spark?
I picked up this 2000 sportsman 500 that had an overcharge issue. It pretty much smoked the electronics. The speedo is burnt up. I was getting a no spark issue. I changed the stator/pulse coil all in one. Changed the voltage regulator, coil, coil wire, coil wire end that plugs onto the spark plug.
What causes a weak spark on a Husqvarna chainsaw?
There are many different components of the ignition system on a chainsaw and any time these parts aren’t working they will misfire in the chamber, which can make starting the chainsaw impossible. A weak spark on a Husqvarna chainsaw can be caused by one of these misfiring components in the ignition system.
How can I tell if my spark plug is weak?
With a peak voltage tester you can measure the output of the coil – spark plug wire to meter to ground between 20,000 to 40,000 volts. The ******* method is to connect a timing light and with the spark plug in the engine, see if the light flashes – if the light flashes, it indicates the current necessary for a spark has occurred.
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 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).
Why do I get a weak spark on my spark plug?
The fact that you do get a weak spark may be indicative of a poor ground. While checking all connections try a little dielectric grease to help keep them intact. Good luck and keep us updated. you didn’t mention the condenser.
What causes a weak spark on a Polaris ATV?
Voltage to the white and blue wire from the cdi to the coil is only getting around 2 volts while cranking. Any idea what is causing the weak spark. This thing is about to make me pull my hair out. OK – I don’t suppose you know if you have an early or late production model?
Why does my CDI have a weak spark?
Voltage to the white and blue wire from the cdi to the coil is only getting around 2 volts while cranking. Any idea what is causing the weak spark. This thing is about to make me pull my hair out.
Is the flywheel on a Polaris spark 3085639 interchangeable?
No – they are not interchangeable – 3085639 has the 3 wire plug and 3086982 has the 2 wire plug – 3086982 is no longer available from Polaris, but I know at least one dealer that has one in stock @ $395, but you can change the stator to the early model stator and use the 3 wire plug – the flywheel is the same for both early and late models.
I picked up this 2000 sportsman 500 that had an overcharge issue. It pretty much smoked the electronics. The speedo is burnt up. I was getting a no spark issue. I changed the stator/pulse coil all in one. Changed the voltage regulator, coil, coil wire, coil wire end that plugs onto the spark plug.
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.
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).
Why does my car have no spark when I start it?
As a result, This occurs after the ignition coil or module gets too hot. Furthermore, it could correct itself after the engine module cools. In some cases, a bad ignition coil will result in the vehicle not starting it all. A Bad Rotor Or Distributor Cap (cracks or carbon tracks that are allowing the spark to short to ground).
Can a spark plug make a motor run poorly?
Spark plugs with the gap set too small on them can make the motor run poorly. If you have no spark and your trigger tests ok, your stator tests ok and you have tried a new set of coils then we’re possibly looking at a bad CDI box. There is no real good way to test the CDI other than swapping the box out with a known good CDI box.
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 to do when your car has no spark?
If you have no spark and your trigger tests ok and your stator tests ok then we may be looking at a secondary coil issue. The coils can have a couple of issues with them. The first thing you want to do is make sure the spark plug caps are on tight and are clean. They just screw on and off the spark plug wire.
If you have no spark and your trigger tests ok and your stator tests ok then we may be looking at a secondary coil issue. The coils can have a couple of issues with them. The first thing you want to do is make sure the spark plug caps are on tight and are clean. They just screw on and off the spark plug wire.
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.