Question about Stihl Chain Saws, 017, 019, 021, 023 & 025

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If the lead is broken, depending on which saw it is, you can buy a replacement lead. Unscrew the wire from the ignition module and screw in the new one after you put the end and boot on it. If it doesn't unscrew then you will have to buy a new module

Posted on Jan 24, 2013

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Posted on Jan 02, 2017

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No spark from coil to distrubuter

Disconnect the ignition coil output wire at the distributor cap.
Connect a spark plug to the end of the ignition coil output wire which you just disconnected.
Connect a ground wire to the threaded portion of the spark plug.
Disconnect the ignition coil ground wire from the negative terminal on the coil (Green Wire).
Connect one end of a ground wire to the ignition coil negative terminal.
Turn the ignition switch to the ON position.
Tap the other end of the ignition coil ground wire jumper on an good grounding point (for example the battery negative terminal) and look for sparks at the spark plug that correspond to the frequency of your tapping of the ground wire.
If you have a good spark at the spark plug, the ignition coil is good.
If you don't get a good spark, check for approximately 12 VDC from the coil positive terminal (black wire) to ground with the ignition switch in the ON position. You should also get approximately 12 VDC from the coil negative terminal (Green wire) to ground
Ignition Coil Resistance Check

In addition to the test above, you may elect to perform an ignition coil resistance check as confirmation of the coil's condition.

Check the ignition coil primary coil resistance by connecting an ohmmeter between the positive (Black wire) and negative (Green wire) terminals on the coil. The resistance should be 0.4 to 0.6 ohms.
Check the ignition coil secondary coil resistance by connecting an ohmmeter between the coil output terminal and the ignition coil negative terminal. The resistance should be 5000 to 7200 ohms.

You may have a bad coil or bad ground or wire connection

Jan 23, 2017 | Cars & Trucks

1 Answer

My dewalt 3800 presher washer gas, is not getting any spark. 1) new spark plug 2) new spark plug wire I still do not get any spark. What could it be?

spark plug wire? do you mean coil? if you have no spark. i would check the plug first. then the coil assuming the on of switch is good. unplug the coil kill wire and try it. if it starts then you have a switch or wiring problem. if it don't start it is likely the coil is bad.

Nov 21, 2016 | Dewalt Garden

1 Answer

I have a broken spark plug wire. Can these be replaced?


Yes, the spark plug wire can be replaced, but you have to buy the ignition coil as the spark plug wire is hard wired into the ignition coil.

If the metal spark plug connector has disconnected from the spark plug wire, the connector can be replaced, but if the spark plug wire has been cut you'll need to replace the ignition coil.

Nov 29, 2013 | Homelite 200 mph 400 CFM Gas Blower...

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Change spark plugs

  1. Disconnect the spark plug wire at each spark plug.
    • Twist each spark plug 1/2 turn.
    • Pull only on the boot in order to remove the wire from each spark plug.
  1. Disconnect the spark plug wire from the ignition coil.
    • Twist each spark plug boot 1/2 turn.
    • Pull only on the boot in order to remove the wires from the ignition coil
  • Install the spark plug wires at the ignition coil.
  • Install the spark plug wire to each spark plug.
  • Inspect the wires for proper installation:
  • Repeat above procedure for all 8 cylinders.
  • Jun 17, 2013 | 2003 Hummer H2

    1 Answer

    How to check faulty 6 volt coil

    pull the coil wire from the dist cap attach a spark plug to the coil wire make sure the plug is grounded. attach a jumper wire from the - side of the coil turn key on. touch the jumper to any good ground. then remove the jumper from ground every time you do this the coil should emit a spark from the plug if no spark the coil is bad if the plug sparks the coil is good

    Mar 26, 2012 | Cars & Trucks

    1 Answer

    Is coil wire same as spark plug wire,or will spark plug wire work same as coil wire

    coil wire has same ends on each side, spark plug wire has two different ends....

    Jun 08, 2011 | Ford F-150 Cars & Trucks

    1 Answer

    Machine is setup correctly in flux setting, i cannot get an arc to strike,, what is the problem?

    Are you sure your flux meter is working properly? Please translate.
    Ignition system. Spark plug. Spark plug wire. Coil (roll of wire). Magnet (on flywheel). Magnetic pickup (coil).
    Magnet flys past coil which induces an electrical current into the coil and, at speedy exit/disconnect, coil induces a voltage surge which causes a spark in the end of the spark plug. Voltage is transferred from the coil to the plug via a spark plug wire. Current is induced from the moving magnet to the coil via close proximity of the moving magnet to the coil (changing magnetic flux).

    Jun 03, 2011 | Garden

    1 Answer

    There is no spark in one spark plug of 4 cylinder engine. what could be possible cause?

    bad spark plug, bad or corroded connection in the spark plug boot, bad spark plug wire, loose or corroded connection on coil post, or bad coil. but if possible... take a plug wire off a known good one ( if length will allow) and swap positions around, if it has spark, then you know your coil and spark plug are good and its time to get a new plug wire;( you should replace all of them though), Now if it doesn't, then the coil is probably bad. can i get a very helpful..thanks!

    Apr 25, 2010 | Hyundai Motor 1998 Accent

    1 Answer

    Change coil, sparkplugs, spark plug wires, icm and still no spark. take off spark plug wire put a good spark plug on it and ground it no spark with everything new.

    Coil is bad
    inspect for cracks
    u could check for spark at the coil wire going into the distributer(center wire )

    Sep 24, 2009 | 1992 Honda Accord

    1 Answer

    Not getting spark

    Testing the coil packs.

    1. Get an INSULATED wire and hook it to a ground on the car.
    2. Get some one to help you
    3. pull a spark plug wire off the coil
    4. hold grounded wire close to, but not touching, the part where the spark plug wire connects
    5. keep hands away from coil and have your helper turn the engine over ( start car and turn off)
    6. if there was a spark between the wire and the coil pack it is good. if not, the coil pack needs replaced
    7. replace the spark plug wire
    8. test the rest

    Apr 22, 2009 | 2003 Mitsubishi Galant

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