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725 running issues


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#1 powerstroker00 OFFLINE  

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Posted July 02, 2016 - 12:41 PM

http://gardentractor...e-new-toys/#got the 725 running but as soon as you give it a little throttle it goes wide open like the governor is out. Pulled the motor and pulled oil pan off expecting to see the gear gone but it is still there and working properly. I don't see anything wrong, any one have any ideas?

#2 jabelman OFFLINE  

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Posted July 02, 2016 - 01:32 PM

check to make sure the springs and rods are in the correct holes per the briggs manual.
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#3 jms180 OFFLINE  

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Posted July 02, 2016 - 01:33 PM

have you checked the throttle plate in the carburetor


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#4 powerstroker00 OFFLINE  

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Posted July 02, 2016 - 01:40 PM

have you checked the throttle plate in the carburetor


Throttle plate is intact.
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#5 powerstroker00 OFFLINE  

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Posted July 02, 2016 - 01:43 PM

check to make sure the springs and rods are in the correct holes per the briggs manual.

Throttle cable wasn't hooked up when I brought it home. I have it hooked the way I think it should go(tried various ways) no matter what I do she goes wide open just as soon as I give it a little juice.
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#6 powerstroker00 OFFLINE  

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Posted July 02, 2016 - 03:07 PM

Just figured it out. When I got it home and started to work on it I knew I would have to clean the carb, when I took it apart the float was split. We took a carb off of another Briggs we had that I know is good and put it on, fired it right up. Well the throttle shaft on the good carb where the rod hooks is clocked about 2:00 and the shaft on the original carb is clocked about 8:00. Just got through putting the good float in the original carb and problem fixed!!!
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#7 boyscout862 ONLINE  

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Posted July 02, 2016 - 04:03 PM

You can change the orientation by pulling the shaft out and turning it 180*. I've seen it before on the old 23D Briggs engines. Good Luck, Rick
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#8 powerstroker00 OFFLINE  

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Posted July 02, 2016 - 04:59 PM

You can change the orientation by pulling the shaft out and turning it 180*. I've seen it before on the old 23D Briggs engines. Good Luck, Rick

Didn't think I would have much luck doing that. It was easier to just switch floats.
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#9 rustyoldjunk OFFLINE  

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Posted July 06, 2016 - 08:58 PM

Throttle cable wasn't hooked up when I brought it home. I have it hooked the way I think it should go(tried various ways) no matter what I do she goes wide open just as soon as I give it a little juice.

Post a picture of your throttle/governor spring setup. We can tell you if its right or what to fix.

 

EDIT: I should read the whole thread before I post. :D :smilewink:

 

On a side I have flipped a few butterflys over (including ones in Briggs carbs :poke: ) It works but the shaft is really only intended to go one way and is only threaded on one side for the two tiny screws that hold the butterfly to the shaft so it always makes me nervous but has always worked out well for me.


Edited by rustyoldjunk, July 06, 2016 - 09:09 PM.

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