huaqvarna push mower 175cc 7.5hp no start

Dustinkerr

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Apr 23, 2017
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Hey guys, I have a 175cc 7.5hp b&s engine that will not start unless I use carb and choke cleaner ,, after it starts the thing runs pretty good,,
I have checked the auto choke to make sure it is working proper and it seems to be working right ,, I pulled the carburetor off took it apart and soaked it in cleaner and sprayed thru all the passages ,everything seems good , the carb looks almost new as it is ,, I made sure the float is working and letting gas thru ,, I even checked the valves to make sure they were set properly ,,
I'm at a loss , is this something so simple I'm over looking it? any help would be awesome , thanks!! Dustin
 

Dustinkerr

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Apr 23, 2017
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guys, I would love some advice on this , it truly has me stumped... could it be possible that a weak spark could cause this , a spark that's not strong enough to ignigte gass but just strong enough to ignite carb n choke cleaner , then once the engine spins up a bit faster the spark gets stronger? is this even possible?
 

Dustinkerr

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Apr 23, 2017
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Turned out to be a dirty carb , no matter how much cleaning and blowing and poking , I ended up just replacing it then the mower fired right up ,, thanks guys
 

BlazNT

Lawn Pro
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Apr 26, 2012
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Yes, sometimes it is very hard to get one cleaned.
 
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