Table of Contents
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 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 you know if a spark plug is bad chainsaw?
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.
Why does my Stihl chainsaw not start?
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 do you check a chainsaw coil with a multimeter?
Locate the coil on your chainsaw. Connect the negative and positive cords of the multimeter to the negative and the positive terminals of the coil in your chainsaw and measure the resistance. A brief answer is convenient for those who are short of time but it will not give you the necessary details of the matter.
How do you check a 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 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.
How do you know if a 2 stroke spark plug is bad?
Signs that your boat’s spark plugs are failing include: Trouble starting the engine. Engine hesitating or cutting out. Loss of engine power. Decreased acceleration.
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.
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.
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.
How do you start a chainsaw that won’t start?
To solve this problem, open the spark plug hole with it facing away from you to drain all the fuel in the tank. Deactivate the choke by pushing in the control then pull the starter cord 6-8 times as you press in the throttle control. Dry off the spark plug and refit it back in place.
What should the ohms be on a coil?
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.
How many ohms should a ignition coil have?
A typical value would read 0.4 – 2 ohms.
Should a coil have continuity?
The coils should show continuity. It could an open winding or maybe an even better bet is that the thermal fuse -often in the winding, has blown.
How does a chainsaw ignition coil work?
Electrical currents run through the ignition coil and transmit electricity to the spark plug. The electricity creates sparks within the spark plug, and the sparks ignite the fuel in the engine, enabling the chain saw to run. Testing the ignition coil at home is simple to do and requires minimal tools.
Do all chainsaws have spark arrestors?
Chainsaw manufacturers include a spark arrestor on every model to prevent combustion byproducts from escaping the combustion chamber during saw operation and starting a fire. To access the spark arrestor, you’ll probably have to remove the muffler.
