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Why is my chainsaw not getting spark?
A spark plug might be defective and needs to be replaced. If your chainsaw has a defective spark plug, it cannot create an electrical current to ignite the system. Remove the spark plug and inspect if it is dirty, cracked, eroded, or damaged. If the spark plug has one or more of these issues, replace it with a new one.
How do you test a chainsaw ignition coil?
Pull the start rope on the chainsaw and watch the end of the plug as you do. If you observe a spark jumping between the tips of the spark plug gap, it means the chainsaw coil is good. If there is no spark, it means the chainsaw coil will need to be replaced.
How do I know if my chainsaw coil is bad?
If your multimeter displays a reading of zero, it is an indication that you must replace the coil of your chainsaw at once because it has short-circuited. If your multimeter displays a reading above the specified level it is an indication that you will also have to replace the coil of your chainsaw because it is open.
How do you check an ignition coil with a multimeter?
Insert one of the multimeter’s probes into the center opening of the coil, contacting the metal terminal inside the coil. Touch the second probe of the meter to the ignition coil’s grounding terminal. The meter should read 6,000 to 15,000 ohms. If it does not, the coil’s secondary winding is faulty.
How do I know if my chainsaw spark plug is bad?
What Does a Bad Spark Plug Look Like and What Makes It Look That Way? Black, chunky carbon buildup spanning the gap between the sparking end of the plug and the hook-shaped metal piece overhanging the end. Dark carbon residue built up on the ends but not spanning the gap.
How do you check a coil on a Husqvarna chainsaw?
Insert the end of the tester that contains the probe into the spark plug boot. Try to start the chain saw. Check the test window of the ignition tester to see whether a spark is visible. If a spark is visible or the machine starts, both the ignition coil and the spark plug are working properly.
How many ohms Should a coil read?
You should have a resistance reading of at least 3-4.5 ohms. A bad coil will show a higher reading then 3-4.5. Next, place the red or black lead from the meter to the centre of the coil , and to either one of the terminals positive or negative. You want 9500-10000 Ohms, a little less is ok but no more.
Can you check a spark plug with a multimeter?
An Ohm meter, which is part of a multimeter, can only check a spark plug for a short circuit or a breakdown of insulation resistance. A good spark plug should show an open circuit between the center electrode and the tip. Any resistance at all would mean the plug is bad.
What would cause a spark plug not to fire?
A spark plug won’t fire properly if its electrodes have been worn thin, if they are covered with combustion deposits or if they’re wet. If the plug has seen many hours of service, the electrodes may just be worn out, and replacing the plug will restore normal engine operation.
When should a spark plug be replaced on a chainsaw?
A poorly functioning engine in a Stihl chainsaw can mean more work for the operator and can even be dangerous. Consequently, Stihl recommends replacing the spark plug after every 100 service hours.
Why is my Stihl chainsaw not starting?
Common solutions for: Stihl Chainsaw won’t start. The spark plug might be defective. To determine if the spark plug is defective, remove the spark plug and inspect it. A clogged carburetor is often caused by leaving fuel in the chainsaw for a long period of time.
How many volts should be at the coil?
Electicity Goes In. The electrical system in your vehicle works on 12 volts, so every component must be based on 12 volts, as well. There is a wire connected to the ignition coil (known as a “hot wire”) that carries the 12 volts into the coil itself.
How do you check spark plugs without removing them?
Test the spark plug ignition by disconnecting the spark plug wire from the spark plug. Hold the end of the spark plug wire close to a metal surface. If the spark plug is good, you will see a spark or you’ll hear a crackling noise. This means that voltage is getting through the wire to the spark plug.
How do I know if my spark plugs need changing?
8 Signs the Spark Plugs or Spark Plug Wires Need Replacing: Regular Maintenance. Check the owner’s manual for the replacement interval. Spark Plug Wires. Fuel Economy Degradation. Slower Acceleration. Rough Idling. Engine Misfires. Difficulty Starting. Warning Lights.
How do you start a chainsaw that has been sitting?
So how can you fix it? Just let the saw sit for 30 min and the excess gas will evaporate. Remove the spark plug, dry it, crank over the engine a few times to dry the cylinder. Now refit the plug and try again. Set the switch to “On”, set throttle to fully open, set choke to “Off” and crank over the engine.
Why will my Husqvarna chainsaw not start?
The carburetor might be clogged. A clogged carburetor is often caused by leaving fuel in the chainsaw for a long period of time. This sticky fuel can clog up the carburetor and prevent the engine from starting. If the carburetor is clogged, try cleaning it with carburetor cleaner.
