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#Post#: 37590--------------------------------------------------
How to test the coil in a two piece trigger/coil ignition setup
By: KilliansRedLeo Date: March 27, 2014, 11:02 am
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This from the creative mind of 3000FPS. Putting it here so that
it does not get lost.
[quote] 3000FPS: When I was working on my Dolmar 119 I had no
spark and it was a trigger and a coil set up.
What I did was to connect a 12volt battery to the input of the
coil very quickly and remove it. With a spark plug c-clamped
to the top of the cylinder I could induce a spark. The
removing of the 12v is what makes the spark. I used some jumper
wires with alligator clips from radio shack. You have to make
sure everything including the negative side of the battery is
grounding through the cylinder.
I found my coil was good the trigger was bad. I might also add
is the contact of the 12volts has to be quick because a car
battery has enouph amps to burn out the coil if you hold it on
there. You could also try a small 9v battery. Make sure the
body of the coil if not mounted in the saw is grounded
also.[/quote]
Attached is a schematic of the connections.
#Post#: 37595--------------------------------------------------
Re: How to test the coil in a trigger/coil ignition setup
By: countryhog Date: March 27, 2014, 11:43 am
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not sure i've heard of the trigger-coil setup. got a list of
saws using that? pix?
#Post#: 37597--------------------------------------------------
Re: How to test the coil in a trigger/coil ignition setup
By: KilliansRedLeo Date: March 27, 2014, 12:01 pm
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[quote author=countryhog link=topic=3337.msg37595#msg37595
date=1395938619]
not sure i've heard of the trigger-coil setup. got a list of
saws using that? pix?
[/quote]
Sometimes referred to as exciter/coil or pickup/coil. Basically
a two part electronic ignition where the actual pickup is
separate from the coil. e.g. there is a box next to the flywheel
and the coil is mounted else where. Used on many saws from all
vendors Husqvarna 288, 61 many others, lots of Homelite, Dolmar,
too many to note. But I am sure you have seen one of this type,
just referred to in another way.
Look here post #23 for picture of Husqvarna 281 version
http://chainsawrepair.createaforum.com/husqvarna/288xp-no-sparkle/20/
#Post#: 37617--------------------------------------------------
Re: How to test the coil in a two piece trigger/coil ignition se
tup
By: 3000 FPS Date: March 27, 2014, 3:57 pm
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Yes the terminology probably is not correct. Tim has a better
explanation of the two piece coil set up. Here is the picture
of what was under the flywheel on my Dolmar 119.
I was looking at the IPL for the Dolmar 119 and I believe it
refers to that module as a trigger.
[img]
http://chainsawrepair.createaforum.com/index.php?action=dlattach;topic=3337.0;a…
#Post#: 37651--------------------------------------------------
Re: How to test the coil in a two piece trigger/coil ignition se
tup
By: countryhog Date: March 28, 2014, 10:21 am
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so you're telling me my early husqy 61 rancher has this kind of
setup? L I B
#Post#: 37659--------------------------------------------------
Re: How to test the coil in a two piece trigger/coil ignition se
tup
By: KilliansRedLeo Date: March 28, 2014, 11:44 am
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Yes, all three of my 61s have a two component system. They are
'gray top' saws. The earliest IPL for the 61 that I have
(1980-02) also shows the two piece system. Given the 1980 date I
am guessing that that saw would have been the white top 61
Rancher. Even the last of the 61s (orange top (S/N 1070001 And
Below)) were still using the two piece ignition system. Saws
after the above serial number use a single piece system.
#Post#: 37846--------------------------------------------------
Re: How to test the coil in a two piece trigger/coil ignition se
tup
By: countryhog Date: March 31, 2014, 10:05 pm
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L I B
#Post#: 38916--------------------------------------------------
Re: How to test the coil in a two piece trigger/coil ignition se
tup
By: Al Smith Date: April 21, 2014, 4:04 pm
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I've got a 281 Husky in the shed that uses a trigger unit .If
I'm not mistaken J-red 630 perhaps, one of the only three of
that brand I ever worked on .Whatever it was the trigger unit
was up near the carb which I thought an odd place to put it .
#Post#: 38918--------------------------------------------------
Re: How to test the coil in a two piece trigger/coil ignition se
tup
By: KilliansRedLeo Date: April 21, 2014, 4:10 pm
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The 242XP, 281 and 288 had them on top, for what reason I'll
never know but the 61, 66 161 and 266 had them down low under
the starter.
#Post#: 68708--------------------------------------------------
Re: How to test the coil in a two piece trigger/coil ignition se
tup
By: gregh Date: January 28, 2016, 9:11 pm
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Definitive way to test a regular magneto for chainsaws?
Sent from my iPhone using Tapatalk
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