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Antique Gas Engine Discussion

Briggs Stratton Engine


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  #1  
Old 02-11-2019, 10:38:32 PM
Cinamon Cinamon is offline
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Default Briggs Stratton Engine

Im rebuilding a Briggs & Stratton Engine for a vintage mower
Model 8
Type 207084
Iím currently not getting any spark. So far Iíve cleaned up everything, sanded the points, of course new spark plug, checked the gaps and still getting no spark. Iím thinking itís the armature Briggs & Stratton # 291617. Iím finding out this item is discontinued.
Does anyone know if I can use a different armature or anything I may be missing?
Any help or suggestions please!!!
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Old 02-12-2019, 12:11:00 AM
ulgydog56 ulgydog56 is offline
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Default Re: Briggs Stratton Engine

test the armature, clean the magnets on flywheel and make sure you have the correct distance between the magnets and armature, don't forget to ohm out your spark plug wire and see if your getting any arcing...
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Old 02-12-2019, 12:45:32 AM
Cinamon Cinamon is offline
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Default Re: Briggs Stratton Engine

I tested the armature with a multimeter came out to 3.83 area. Gaps are good according to spec.
I did not test the spark plug wire. Whatís the best way to test that?
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Old 02-12-2019, 12:56:48 AM
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Mike in NC Mike in NC is offline
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Default Re: Briggs Stratton Engine

Possibly the condenser.
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Old 02-12-2019, 11:05:14 AM
gdstew gdstew is offline
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Default Re: Briggs Stratton Engine

After you sanded and set the points, they still need to be cleaned real good with a piece of paper or contact cleaner. Also check the flywheel key, the slightest mark is enough to throw it out of time and needs to be replaced.
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Old 02-12-2019, 11:59:07 AM
Andy Williams Andy Williams is offline
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Default Re: Briggs Stratton Engine

another thing, do you have another condenser/capacitor they will cause this if bad. it might run if spun fast with a drill but not start with the rope.
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Old 02-13-2019, 12:01:30 AM
ulgydog56 ulgydog56 is offline
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Default Re: Briggs Stratton Engine

you should get very low omh value when reading a spark plug wire on a vom amp meter, also make sure you have correct oem type spark plug, not resistor type....
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Old 02-13-2019, 03:16:14 PM
Andrew Mackey Andrew Mackey is offline
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Default Re: Briggs Stratton Engine

The coil lead out wire should be wire core, not modern carbon core. Also, the mag end should not be soldered to the mag. The end should be timmed and then crimped onto the mag high tension tab. If it was soldered, the core may bbe now shorted. Have you checked the sponsors pages for small engine parts? I know Partsman has old parts in stock
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