generator won't start no spark
If the porcelain insulator is cracked an electrode is burned away or damaged or there is heavy carbon buildup at the electrode replace the spark plug. It often happens that a generator wont start because the HT lead that conducts the current to the sparkplug has worked loose or is damaged.
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01 - Spark Plug.
. If the ignition coil is defective the engine may not start. There is a black wire coming from the cube that also has a quick connector. If it cranks but wont start try these tips before going t.
Generac Generator wont start. Start the engine and allow it to run for 15 minutes before reconnecting the sensor. If you disconnect this lead from the plug or coil you should here a slight popping sound.
You should see a strong spark between the testers terminals when the engine is cranking. If you have confirmed that the spark plug is working properly test the ignition coil with an ignition coil tester. If there is no spark this indicates that the spark plug is defective and should be replaced.
Enter model number to search for. Open the vacuum relief valve at the top of the tank to release any air that may have been trapped in the piping system. Before replacing the ignition coil ensure that the spark plug is working properly.
Inspect the spark plug for signs of wear or damage. If even after doing this it still wont start do one or both of these things. Still wont start and no spark to the plug.
If you still have no spark follow the yellow wire you from the point you disconnected it over to small silver cube that it comes out of. Then when the voltage drops the no voltage shutdown kicks in. CHECK SPARK If the engine cranks but does not start remove a spark plug and check for spark during crank-ing spark plug must be grounded.
To determine if the spark plug is defective use a spark plug tester. I have a 12kw guardian that was hit by lightening. About Press Copyright Contact us Creators Advertise Developers Terms Privacy Policy Safety How YouTube works Test new features Press Copyright Contact us Creators.
The ignition coil sends voltage to the spark plug while the engine is running. If youre sure theres fuel in the tank and the generator wont start check whether the fuel valve is turned ON or OPEN for the fuel to flow. Check the generator voltage when you put the load on - if it drops to zero before the generator cuts out should drift to zero as the generator slows its a sign of a bad control board or dirty slip rings preventing the generator from putting out full power.
Here are some simple things you can try to see if your onan 4000 micro quiet generator will start. Temporarily jumper the ignition coil positive to the starter solenoid positive terminal or jumper the BATTERY POSITIVE pin to the IGNITION pin on the control board. Replaced the transfer and controller then the lp solanoid.
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