In a generator, you reverse the process: You move a magnet past the armature to create electric current in the coil. A primary coil of perhaps 200 turns of thick wire wrapped around one leg of the U.A secondary coil of perhaps 20,000 turns of very thin wire wrapped around the primary coil. The secondary coil, having 100 times more turns than the primary coil, amplifies this voltage to approximately 20,000 volts, and this voltage feeds to the spark plug.
Your ignition timing is where the points start to open during that rotation of the flywheel. Ignition timing on a chain saw is pretty much set by an index key on the shaft and flywheel – adjusting the timing is not something the average saw user can easily do. On some saws, updating to electronic trigger modules also may require changing the flywheel; I believe because the magnet location can be different between the point and electronic versions of those saws which would of course affect the timing.
does a chainsaw have points Related Question:
Do chainsaws have points?
There are two points of ignition on a 032 AV Stihl chainsaw: the spark plug and the ignition module. The spark plug’s gap can easily be fixed by replacing the spark plug. The gap, or point, on the ignition module is much more precise and needs to be set by hand.
How do you check chainsaw points?
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 does a chainsaw ignition 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.
What makes a chainsaw fire?
The ignition coil is the device that sends voltage to the spark plug, creating a spark that ignites the fuel and turns on the chainsaw.
What is a magneto on a chainsaw?
” ” The magneto creates the electrical charge needed to fire the spark plug, and the spark plug creates the spark inside the combustion chamber to ignite the gasoline (see How Two-stroke Engines Work for details).
Why does my chainsaw bog down when I give it gas?
If your chainsaw is bogging down when you give it throttle, this is often a sign of improper gas-to-oil ratio. If there is too much gasoline in relation to the amount of oil used, this is known as a “rich mixture” and can cause the chainsaw to run poorly.
What is the LA screw on a Stihl chainsaw?
The LA setting on Stihl chainsaws is controlled by a screw on the outer housing of the engine that adjusts the flow of fuel and air through the carburetor. This screw is inside the engine housing on the carburetor, but is accessible through a hole or gap in the outer housing of the saw.
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.
What does a bad chainsaw spark plug look like?
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. Oily residue on the end (most likely to happen with two-stroke engines that use a gas/oil mixture).
Why does my chainsaw keep dying?
A clogged carburetor is often caused by leaving fuel in the chainsaw for a long period of time. Over time, some of the ingredients in the fuel may evaporate, leaving behind a thicker, stickier substance. This sticky fuel can clog up the carburetor and cause the chainsaw engine to stall.
Why do chainsaws spark?
The most common cause of sparks from a chainsaw is metal-on-metal grinding. Whether it’s cutting through wood that has a nail in it or a grinding of gears in the chainsaw housing, a metal-against-metal grinding is the most likely cause.
What is the gap between ignition coil and flywheel?
Replacing Ignition Coils or Armatures An ignition armature must be set at a precise distance from the flywheel. Your engine repair manual will provide the proper gap for your engine. Common armature gap ranges are . 006 – .
Why does my chainsaw dies at full throttle?
If the filter becomes clogged, not enough fuel will reach the engine for it to run properly. Because your chainsaw will idle, but dies when it is revved up to full power, it means that the filter is only partially clogged; it will allow enough fuel to the engine to run on idle, but not enough to sustain full throttle.
Why does my chainsaw lose power when cutting?
1. Dull chain and or improper lubrication to the bar and chain, sharpen and or clean the bars oil holes. 2. Air filter and fuel filter for restrictions and contamination, clean or replace as needed.
Can you clean a chainsaw fuel filter?
Brush the air filter gently with a soft brush or wash it in warm soapy water then dry it. Do not use compressed air to clean it – compressed air can blow holes in the filter, allowing dust and debris into your carburetor.