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My 025 chainsaw wont start how do i check or test my ignition coil and spark plug?

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  • Garden Master
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Pull the plug and put the HT lead back on the plug . ground the plug body on a metal surface and pull the cord . If the electronics are working there will be a spark across the plug points . If not get a new plug and retest
check that the stop switch is in the on position and is functioning and that the wires are not broken
other than that take the machine to a service centre and have the coil tested on their machine

Posted on Mar 29, 2015

6 Suggested Answers

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Posted on Jan 02, 2017

  • 226 Answers

SOURCE: Craftsman Chainsaw will not start

It's your ignition, which you can take that stuff apart on the left hand side of the saw under the recoil. I have 2 of these, & you can get the parts. Maybe its just the magneto gap adjustment, which is like a business card or newspaper width gap. I would check that first. Hope this helps you, Rick

Posted on Apr 29, 2009

  • 2 Answers

SOURCE: Husqvarna ranger 55 chainsaw starts but quits

I too have a rancher 55 and had what sounds like the same problem this week. It would start fine but run for only a few seconds at a time. I took it all apart today and found the problem - a cracked fuel line. In the places where I could see the hose it looked fine, but it wasn't until I removed the fuel tank that I found the crack...right where it exits the tank and then goes thru the housing above it. You don't need to remove the tank to replace the hose but it is easier that way. You do have to push it thru a grommet at the top of the tank. I read some other posts about checking the tank vent to see that it's not plugged up. Mine was ok so I knew it had to be something else. The vent is in a hole about the size of a pencil and is recessed about an inch into the tank on the upper right side. Its partially covered by a plastic cap that's part of the vibration damper, which can be removed to gain access to the vent. The vent tube can then be pushed out from inside the tank with the use of long needle nose pliers, but be gentle. I just loosened it then pushed it out with a finger. I put it all back together with a new hose and its running like new again!

Posted on May 31, 2009

steve_lima
  • 181 Answers

SOURCE: Gas chainsaw has no strong spark and wont start

the air gap should be .012", the gap you have it set at is to small.reset the gap and try it again.......hope this helps,let me know........

Posted on Jun 02, 2009

dontbother10
  • 2220 Answers

SOURCE: wanted coil ignition module for Husqvarna 394xp chainsaw

I found an IPL for your saw here:
HusqvarnaUSA.com
http://www.husqvarna.com/us/homeowner/support/download-manuals/
Enter 394 as model number (no XPs, Es, just the numbers)
Serial number decode – for use with IPL
06 1500198
06 = year produced – 2006 (single digit before 2000)
15 = week produced - March
00198 = 198th unit Husky produced that week

I chose the 92-10. The coil and wire were manufactured as separate pieces. I found both at Jacks Small engines. It is interesting that the same ignition wire fits a Poulan at 1/2 the cost. About $86 for both pieces at Jacks. HTH
Lou

Posted on Oct 19, 2009

Testimonial: "Most interesting and very helpful Thank You"

dontbother10
  • 2220 Answers

SOURCE: poulan 34cc chainsaw. wont start. replaced

Set the gap as Drallim suggests then follow this to test the ignition system, the entire system.

Ignition Coil Test by SmallEng.com
http://www.youtube.com/watch?v=L7WNBDRG4C4
You may need to use a jumper wire between the threaded part of the plug and the cooling fins. You do not have to bend up the electrode. HTH
Lou

Posted on Feb 24, 2010

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1 Answer

BROKEN SPARK PLUG IGNITION WIRE


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

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I have a Stihl 025 that I can't seem to start. The two things I have noticed after I took things apart is that there is a grey wire that is not attached to anything, and dosen't seem to have anywhere


Jon try check the wires coming from the ignition coil to the on/off switch. one is a ground and the other goes into the coil. When they are connected the coil is turn off and will not spark.

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check the spark arrester screen in the muffler. if they stop up it will run like it has
no power and will stall

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2 Answers

Echo cs-3400 wont start . no spark. what are the primary and secondary coil readings?


if you have no spark

check for faulty plug 1st, then pull kill wire off at kill switch, then check for grounding ht lead ,
then pull kill wire off at armature , if still no spark most likley faulty ignition armature
i suspect the part number you need if its type 1 is 15662639130
replace it and set air gap and reassemble and test

here is web site for parts

http://www.ereplacementparts.com/echo-cs3400-type-chainsaw-parts-c-35043_35970_36021.html

or you could try www.partstree.com , go to echo saws , then find your model


cheers hope it helps


pauly 46

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Husqvarna 455 rancher Starts fine and runs great for about 5 mins. Stalls and wont restart until cold. Problem than repeats


Try removing the fuel cap for a moment to see it can be restarted immediately. If this works, check the fuel tank vent for plugging problems. Also, check for spark at the plug when it dies--if no spark, try a fresh plug gapped at 0.020". If nothing, the ignition module may be failing with heat. Good luck!

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3 Answers

Husqvarna 14" chainsaw wont start. put new plug


Try a new spark plug.If still does not fire you have a bad ignition coil.

Nov 26, 2010 | Husqvarna "Chain Saw - 16" Bar, 3 Hp

1 Answer

Chainsaw wont start. new plug has a little spark.


The engine case needs to be removed to expose the flywheel and ignition module. Check the module pole gap to the flywheel magnets with a thin business card for a gauge. If the gap is excessive, that can give a weak spark. If the gap appears to be correct, then it is probably time for a new ignition module. Make sure the spark plug is gapped at 0.020" before condemning the module. The spark should be blue and snappy. Check it in a dark area. Hope this helps!

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2 Answers

No spark in stihl 025 chainsaw. I replaced the


check the ground wire on the on and off switch, it could be a bad ground

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2 Answers

Husqvarna chainsaw stops when using it


Check for spark after it quits. If none, the ignition module may be dying when hot. If ok, check the muffler for plugging. Use compressed air to remove sawdust from cylinder and head area. If everything looks good, note whether the spark plug is getting wet with fuel after trying to restart the saw. If dry, check the fuel lines for cracking or other deterioration. Make sure the fuel tank vent is clear of debris. (Loosen the fuel cap for a moment, then see if it will start.) Hopefully, one of these suggestions will hit on the problem!

Feb 19, 2010 | Husqvarna Chain Saw 20" Bar

1 Answer

JOHN DEERE 318 LAWN TRACTOR WONT START


ok, since you have the points, I assume you have the B43g Onan
engine. Was it running before the new parts were installed?
Check your point gap and make sure it is .016, plugs ahould be gapped at .025 Make sure your plug wires are good too. Should be somewhere between 0 and 10,000 ohms per foot, when measured with an ohmmeter. Once everything is rechecked for gap distance, make sure there is no spark by pulling plug out, leaving wire on and ground the outside of plug to the chassis of the tractor.
Crank over and look for the spark. Coils are about $100, so you want to eliminate everything else first.
Diagnosing a points ignition for no spark is really simple. Do you have 12V at the coil? Do you get a spark when you connect and disconnect the negative terminal of the coil to ground? If not you have a bad coil.

May 18, 2009 | Craftsman 42 in. Deck 19.5hp Lawn Tractor

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