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Answered17.5 hp Briggsandstratton won't start

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usmcbaker@msn.com
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2017/07/09 09:14:08 (permalink)
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17.5 hp Briggsandstratton won't start

It acts like it wants to start but just will not but the muffler is getting warm.
I have replaced the spark plug.
I have clean the fly wheel of rust along with the -MAGNETO
put fresh gas in tank 
putting gas in carb or starting fluid don't work
Mikel1
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Re: 17.5 hp Briggsandstratton won't start 2017/07/09 22:33:49 (permalink) ☼ Best Answerby usmcbaker@msn.com 2017/07/10 09:41:51
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If you put fuel or starting fluid into cylinder, does it start temporarily?
usmcbaker@msn.com
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Re: 17.5 hp Briggsandstratton won't start 2017/07/10 09:43:17 (permalink)
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no just backfires when i have it at full throttle or choked
 
Mikel1
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Re: 17.5 hp Briggsandstratton won't start 2017/07/10 10:39:49 (permalink)
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Where does it backfire at carb or exhaust?
usmcbaker@msn.com
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Re: 17.5 hp Briggsandstratton won't start 2017/07/10 11:18:45 (permalink)
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both because i was trying adjust things as i went while working on it.
 
Mikel1
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Re: 17.5 hp Briggsandstratton won't start 2017/07/10 12:00:48 (permalink)
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I would make sure flywheel key is intact.
usmcbaker@msn.com
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Re: 17.5 hp Briggsandstratton won't start 2017/07/10 17:02:04 (permalink)
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I have taken the nut off and looked at the pin in the fly wheel and it all looks good to go I am working on having the compression checked as the next step in trying to find the problem. 
Mikel1
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Re: 17.5 hp Briggsandstratton won't start 2017/07/10 17:32:49 (permalink)
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Yeah that would be my next step.
A good time to check the travel of the valves also.
usmcbaker@msn.com
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Re: 17.5 hp Briggsandstratton won't start 2017/07/13 22:40:48 (permalink)
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Update:
Put in shop and if found out to need the valves and choke adjusted but running good now.
dyauchzee@yahoo.com
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Re: 17.5 hp Briggsandstratton won't start 2017/07/20 05:02:09 (permalink)
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18.5 HP I can't get any spark. replaced the mag adjusted air gap and it ran for a couple of days and then no spark again, I tried with the grounding wire disconnected still nothing, what is my problem, bad mag ??
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