enigne doesn't maintain speed

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  #1  
Old 03-10-08, 09:29 AM
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enigne doesn't maintain speed

I have a briggs and stratton model(28n707) while mowing at full throttle she started to slow down and finally stopped running Now i can't get it to turn over it tries at the first turn of the key but bogs down after that it won't even fire up
 
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Old 03-10-08, 11:15 AM
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Did it run out of oil ?
 
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Old 03-10-08, 12:27 PM
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oil is fine I have recently replaced key switch /solanoid /battery starter has trouble turning enigne on second try turns hard i Have removed spark plug starter turns easy
 
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Old 03-10-08, 01:12 PM
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It wouldn't hurt to clean all electrical connections, particularly the heavier cables and connections to frame.
 
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Old 03-10-08, 01:18 PM
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thanks

thanks glen I'll check it out and let you know
 
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Old 03-10-08, 11:45 PM
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If this is an OHV engine, adjust the valves and inspect the valvetrain while the valve cover is off.
 
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Old 03-11-08, 02:24 PM
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thanks cheese

I opened the valve cover and was able to turn one of the nuts by hand should they have a gap setting if so how can i find the proper gap and what about torque?
Thanks Nigel
 
  #8  
Old 03-11-08, 03:27 PM
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Yoiu can download the owner's manual by entering the model number at
https://www.briggsandstratton.com/ma...nav3&subMenu=3
valve lash will be in it.
Briggs Check Chart shows intake .003-.005, exhaust .005-.007
 
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