Tecumseh 8.5hp starting problems

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  #1  
Old 10-12-06, 06:10 AM
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Tecumseh 8.5hp starting problems

Hi.

I'm having problem starting my engine... Always takes time... I have to pull for like a 10 min to get her started... When it's hot I only have to pull like 5 till 10 times... but to much!

I have spark... I'm not sure I have the right spark plug?
I'm sure the ignition timing is right.. Allready checked that.

The engine misfires sometimes and knocks even... runs unevenly.

HM80-155359P SER 0177D
311-840-000/H280B4

MTD 8/28.

What's the original spark plug for this engine ?
Carburetor.... I need some good advises for adjusting Carburetor...Some screws I've clean it so I think it's good...

Cheers
 
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Old 10-12-06, 12:18 PM
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Join Date: Jul 2001
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Posts: 16,817
Sounds like it could be low compression, maybe in need of a valve adjustment. Have you checked valve clearances? I believe it takes a J19LM champion plug. I would hold off the carb adjustments until the valve clearances are verified to be within specs.
 
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