lawn mower won't start PoulanPro

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  #1  
Old 09-10-08, 04:30 PM
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lawn mower won't start PoulanPro

Dear all,
I need some advice.
I'd a PoulanPro rotary mower and the engine seems to have its own mind :-(
Here is the situation:
I did some mowing this afternoon and all of sudden, the engine kind of turn down slowly. So I release the lever...try to stop the engine...however, the engine won't stop....and I also smell something burning. Finanlly, it stops after about 30 seconds.

Then, I try to start the engine again...this time...it didn't work. So I replace the spark plug and restart again. This time, the engine starts but very weak...and it won't stop after I release the lever....then stops after about 30 seconds again.

Does anyone have any idea what's going on?
Regards,
Sam
 
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  #2  
Old 09-10-08, 04:33 PM
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by the way...this is for a self-propel mower.
thanks so much
Sam
 
  #3  
Old 09-10-08, 05:17 PM
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The loss of power could be attributed to a dirty air filter, the reason it will not stop most likely has something to do with the kill switch. If you can post the engine model and spec numbers I can be more specific on what and where to look.
 
  #4  
Old 09-11-08, 04:29 PM
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my mower model is: poulanpro hd6x
engine model is: 125k02
I cannot find air filter in the diagram.
 
  #5  
Old 09-11-08, 06:14 PM
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Without the type number off your engine I can't be sure which air filter you might have. Take a look at this link, this is the most common air filter (ref # 445A). There is one screw in the middle of the top of the cover, loosen this screw the the cover will pivot down to access the air filter element.

http://www.partstree.com/parts/?lc=b...1&dn=54820004A
 
  #6  
Old 09-16-08, 08:44 AM
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Dear 30yearTech,
I try to replace the air filter..but it still didn't work. So I guess it's just like what you said...something wrong about the engine.
The engine is: Briggs & Stratton
family: 5BSXS.1901VH e11*97/68SA*2002/88*0296*00
276027
the air index of this engine is: 3

the previous problem is 'the engine won't stop'...now the engine won't start.
Please help.
regards,
 
  #7  
Old 09-16-08, 09:17 AM
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May also need to try a new spark plug.
 
  #8  
Old 09-16-08, 10:13 AM
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I did replace a new spark plug...it didnt' work either.
the pull string is tight...not loosen...by the way.
 
  #9  
Old 09-16-08, 04:06 PM
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Dear 30yearTech,
I probably know what's wrong
I got the wrong engine oil.
My engine is 6.5 hp but I got the oil for 10-18 hp use.
now, I dump out the oil and refill the right one, but engine still didn't start....do you know what's going on now?
thanks
 
  #10  
Old 09-16-08, 11:39 PM
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Originally Posted by bubulala View Post
Dear 30yearTech,
I probably know what's wrong
I got the wrong engine oil.
My engine is 6.5 hp but I got the oil for 10-18 hp use.
now, I dump out the oil and refill the right one, but engine still didn't start....do you know what's going on now?
thanks
when you try to crank it is it harder to pull then normal.for oil you want 5W-30
 
  #11  
Old 09-17-08, 03:45 AM
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My guess is that something happened to the kill circuit and flywheel brake. The brake engaged but the kill switch was not engaged so the engine was pulling against the brake on the flywheel. That is also indicated by not being able to kill the engine and the smell of something burning. Most all of the kill switch cables operate the brake also.
 
  #12  
Old 09-17-08, 04:30 AM
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Making an assumption here that there is a cover in front of engine that covers the self-propelled belt and transmission, remove cover and ensure all grass debris is totally cleaned out.
Thanks,
 
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