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Check for Spark Before Trying to Start Engine


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#1 chieffan OFFLINE  

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Posted October 23, 2015 - 05:47 PM

Working on my 1476 with a S14D Wisconsin.  Got the flywheel off, cleaned up inside and out, stator cleaned and wires all look good.  Have the flywheel, shroud and starter pulley back on.  Need to fabricate one motor mount.  Is there a way to make sure the stator and the electronic ignition module is working before getting it all back together and anchored down?  Did not find anything in the engine manual relating to this.


Edited by chieffan, October 23, 2015 - 07:33 PM.


#2 larrybl ONLINE  

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Posted October 24, 2015 - 10:52 AM

For the stator, it is just a coil, measure with an ohm meter and check that it is not shorted (0-ohms) or open (~ - ohms).

For the spark, I think the engine has to be cranked to check that.


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#3 chieffan OFFLINE  

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Posted October 24, 2015 - 12:47 PM

For the stator, it is just a coil, measure with an ohm meter and check that it is not shorted (0-ohms) or open (~ - ohms).

For the spark, I think the engine has to be cranked to check that.

Having the flywheel back on I can't tell which wires go to the coil and which one is ground for sure.  Three wires out of the connector.  Any place there is a schematic for the coil?  Wiring diagrams don't show that part.



#4 Bruce Dorsi OFFLINE  

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Posted October 24, 2015 - 02:07 PM

There is some info in the Wisconsin Service Manual:

 

http://gardentractor...-engine-manual/

 

Pages 68-69 of the manual.


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#5 chieffan OFFLINE  

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Posted October 24, 2015 - 03:03 PM

Thanks much Bruce.  That was what I needed.  I have a manual for those 3 engines but it is different than the one you noted.  Mine did not show the diagram for the solid state breakerless ignition, only the stator with start/gen and Bendix starter with charging coil under flywheel.  Making progress, slow but sure.


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#6 accidentalchild OFFLINE  

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Posted November 23, 2015 - 11:46 PM

I have a 1476 with the same engine if you need any pictures of my set up let me know.


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#7 chieffan OFFLINE  

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Posted November 24, 2015 - 06:10 PM

No spark and cannot figure out why?  Flywheel is clean and good magnets.  Key is good.  Stator, ignition module and coil are all new and check out good.  Kill wire (yellow from stator) disconnected and still no spark.  Have it all apart again checking for anything that might be wrong.  Will try again tomorrow, get it back together far enough to turn it over and see if there is spark.



#8 fonz3482 ONLINE  

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Posted November 24, 2015 - 06:16 PM

Stupid question that I figure id throw out there. Is there any safety switches on that machine? Like on the pto lever? I had a ht20 for a brief time that wouldn't fire. I found the little safety switch for the pto lever broken off. I zip ties it up and it fired right up

Edited by fonz3482, November 24, 2015 - 06:17 PM.

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#9 chieffan OFFLINE  

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Posted November 24, 2015 - 08:23 PM

This ignition system is a stand along system.  Not connected to the 12V system in any way.  The starting circuit between the ignition switch and solenoid has the safety switch in line but I figured they were all shot so by passed them to start with.  Engine turns over OK, just no fire from the ignition system.  Everything is new from the stator under the flywheel to the spark plug.


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#10 MH81 ONLINE  

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Posted November 24, 2015 - 08:47 PM

Does that engine have points or is it all electronic?
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#11 chieffan OFFLINE  

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Posted November 25, 2015 - 06:10 PM

Does that engine have points or is it all electronic?

It is all electronic ignition with a Delco starter/generator.  No 12V connection to the ignition system.

 

I wish it did have points as I would have had it fixed a long time ago.


Edited by chieffan, November 25, 2015 - 06:11 PM.

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#12 chieffan OFFLINE  

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Posted November 26, 2015 - 08:07 AM

Another thing that crossed my mind last night.  All the wiring diagrams I have seen show the yellow wire going to a switch, to be used as a kill switch.  None have ever said if this is a normally open or normally closed switch.  Common sense dictate that it would be a normally open switch but with this thing common sense has gone out the window a long time ago.


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#13 chieffan OFFLINE  

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Posted November 29, 2015 - 09:11 PM

Problem Solved !  That piece of crap is in pieces on the floor never again to give anyone fits trying to get spark out of it.  Will b e putting another engine in if the hydro is good.  Will know tomorrow when I set a 6 hp Briggs in to test it with.


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