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Checking for spark #938785
05/14/18 11:29 PM
05/14/18 11:29 PM
Joined: Sep 2003
Posts: 4,201
PA
twoshoes Offline OP
Carpal Tunnel
twoshoes  Offline OP
Carpal Tunnel

Joined: Sep 2003
Posts: 4,201
PA
Can't get my line trimmer to start. Pulled the plug and it is wet from gas that is new. Put the plug back into the boot and pulled the cord. Can't see any spark (maybe not dark enough) but could feel a tingling sensation when holding by the porcelain. Does that mean it it is sparking?


Tom



Re: Checking for spark [Re: twoshoes] #938786
05/14/18 11:36 PM
05/14/18 11:36 PM
Joined: Feb 2005
Posts: 3,528
Hudson Valley, New York
bilvihur Offline
Carpal Tunnel
bilvihur  Offline
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Joined: Feb 2005
Posts: 3,528
Hudson Valley, New York
It's a good start, but you actually have to SEE a spark across the electrodes. Try grounding the plug (in the boot) against the block when you pull the cord.


MSI Mobo, Phenom II CPU, Win 7/64 Premium, 8GB DDR3 Ram, Chrome, Avast, Malwarebytes
Re: Checking for spark [Re: bilvihur] #938791
05/15/18 02:47 AM
05/15/18 02:47 AM
Joined: Sep 2003
Posts: 4,201
PA
twoshoes Offline OP
Carpal Tunnel
twoshoes  Offline OP
Carpal Tunnel

Joined: Sep 2003
Posts: 4,201
PA
Thanks for the response. I was wondering if it was necessary to ground the plug and you answered my question. I will try that tomorrow but will need my wife to help me. I'll ground the plug and watch while she pulls the rope and if we are in a dark enough spot hopefully see a spark! Will update after my test.


Tom



Re: Checking for spark [Re: twoshoes] #938815
05/15/18 05:32 PM
05/15/18 05:32 PM
Joined: Aug 2006
Posts: 5,036
harvard, il.
N
notnew2diy Offline
Carpal Tunnel
notnew2diy  Offline
Carpal Tunnel
N

Joined: Aug 2006
Posts: 5,036
harvard, il.
If the plug got wet w/gas, burn off the residuals w/a propane torch or spray w/brake cleaner.

A cereal box, rounded over like a tunnel,
can help provide the dark you need to see the spark.

HTH...good luck...notnew...


Thanks to all US military veterans.
Re: Checking for spark [Re: notnew2diy] #938821
05/15/18 08:34 PM
05/15/18 08:34 PM
Joined: Sep 2003
Posts: 4,201
PA
twoshoes Offline OP
Carpal Tunnel
twoshoes  Offline OP
Carpal Tunnel

Joined: Sep 2003
Posts: 4,201
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Thanks for the additional tip. I will clean the plug up good. Didn't get a chance to work on it today, hopefully tomorrow!!!


Tom



Re: Checking for spark [Re: twoshoes] #938825
05/15/18 09:51 PM
05/15/18 09:51 PM
Joined: Sep 2002
Posts: 9,825
Welland Ont. Canada
jdevlin Offline
Carpal Tunnel
jdevlin  Offline
Carpal Tunnel

Joined: Sep 2002
Posts: 9,825
Welland Ont. Canada
I have never had to clean a plug unless it was all carboned up. Once you pull it out the gas will not effect the spark.

Re: Checking for spark [Re: jdevlin] #938858
05/16/18 01:20 PM
05/16/18 01:20 PM
Joined: Aug 2006
Posts: 5,036
harvard, il.
N
notnew2diy Offline
Carpal Tunnel
notnew2diy  Offline
Carpal Tunnel
N

Joined: Aug 2006
Posts: 5,036
harvard, il.
Originally Posted By jdevlin
I have never had to clean a plug unless it was all carboned up. Once you pull it out the gas will not effect the spark.


I have had more than a few times, the engine flooded (2 and 4 stroke), plug was saturated w/gas.
Clean plug as described, did nothing more, engine fired like nothing had happened.

YMMV....notnew...


Thanks to all US military veterans.
Re: Checking for spark [Re: twoshoes] #938865
05/16/18 02:18 PM
05/16/18 02:18 PM
Joined: Apr 2004
Posts: 16,944
Cape Spencer, New Brunswick, C...
JasonB Offline
Sharp -Shooter
JasonB  Offline
Sharp -Shooter
Carpal Tunnel

Joined: Apr 2004
Posts: 16,944
Cape Spencer, New Brunswick, C...
Would likely have fired up if you'd simply opened teh choke and pulled a while too... A flooded 2 stroke is a terrible thing to start!

J


er, somethin'....
Re: Checking for spark [Re: twoshoes] #938910
05/16/18 10:32 PM
05/16/18 10:32 PM
Joined: Sep 2003
Posts: 4,201
PA
twoshoes Offline OP
Carpal Tunnel
twoshoes  Offline OP
Carpal Tunnel

Joined: Sep 2003
Posts: 4,201
PA
Success!! Cleaned up the plug and reinstalled it, added new gas, then pulled the cord twice and it started right up. Only then did I notice I never even used the choke. Thanks for all of the responses, great forum indeed.


Tom




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