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Fried Ignition... HELP!


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15 replies to this topic

#1 wvbuzzmaster OFFLINE  

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Posted May 19, 2011 - 02:32 PM

Well, I finished the bare bones rewire of the Caterpillar and tried to start it... Well.... It would not start... and not it will not start.... after I heard sizzling coming from where my ignition wires come out out of the engine..... Well, Dad and I tested the switch and believe that it is a grounded to kill it setup, meaning it should not get power to that wire.... which I gave it.... HELP!! It is a 1988 Briggs and Stratton opposed twin.... I hope I don't have to pull the flywheel cause that means I would have to pull the engine...... anyone able to help???

#2 wvbuzzmaster OFFLINE  

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Posted May 19, 2011 - 03:24 PM

Would like to add that it is sizzled enough to burn out a 30 amp fuse instantly....
I have gone back and tested, I have no spark at all, so I need help....

#3 tractorgarden OFFLINE  

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Posted May 19, 2011 - 04:20 PM

Casey call me

#4 tractorgarden OFFLINE  

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Posted May 19, 2011 - 04:26 PM

sounds like you burned two diodes;on the kill wire by powering it. unhook all wires , jump the starter directly and check for spark, call me. Shawn

#5 olcowhand ONLINE  

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Posted May 19, 2011 - 04:49 PM

More than likely, the coils are fried.

#6 wvbuzzmaster OFFLINE  

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Posted May 19, 2011 - 05:07 PM

More than likely, the coils are fried.

No spark, no run, something definitely is fried. Shawn and I determined it to most likely be a Magnetron setup. As far as getting to it.... the engine will most likely have to get out....

#7 wvbuzzmaster OFFLINE  

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Posted May 19, 2011 - 05:38 PM

I think I found the ignition coil I need, part number 394891
Amazon.com: Briggs & Stratton 394891 Ignition Coil For L-Head Twin Engines: Patio, Lawn & Garden
Is this correct?

#8 Bolens 1000 OFFLINE  

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Posted May 19, 2011 - 05:40 PM

Link dosent work

#9 wvbuzzmaster OFFLINE  

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Posted May 19, 2011 - 05:46 PM

Link dosent work

Just tried it myself and it is working for me.

#10 Bolens 1000 OFFLINE  

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Posted May 19, 2011 - 05:47 PM

It works now :D

#11 MH81 ONLINE  

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Posted May 19, 2011 - 06:01 PM

Casey, so sorry to hear it. That switch must be for a powered ign system. Better do a continuity check on it before going much farther. Is it the same pt number or a direct replacement?

#12 wvbuzzmaster OFFLINE  

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Posted May 19, 2011 - 06:06 PM

Casey, so sorry to hear it. That switch must be for a powered ign system. Better do a continuity check on it before going much farther. Is it the same pt number or a direct replacement?

The new switch it for powered ign system, and I thought that is what I had, remember, I bought an IH truck ign switch. I would have thought a red flag would have come up with someone reading my rewire thread to mention something if I had the wrong plan. Mixing and matching parts is tough. Ah well, guess I won't make that mistake again.
The magneto I linked looks to me a replacement for another part number that is the right part number, but it does come up for my engine. My engine is a 422437-1209 if anyone wants to doublecheck that part for me.

#13 caseguy OFFLINE  

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Posted May 19, 2011 - 06:37 PM

...My engine is a 422437-1209 if anyone wants to doublecheck that part for me.


Casey, I checked out partstree and using that engine model number I came up with Briggs and Stratton 394891 Armature-Magneto. I put a link to the page as well. Click Here Hope this helps.

#14 Alc ONLINE  

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Posted May 19, 2011 - 07:06 PM

Sorry to hear about your ignition wires .Hope there's not too much damage , Al

#15 Bolens 1000 OFFLINE  

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Posted May 19, 2011 - 07:18 PM

Will the one circled work?
coil.jpg




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