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Toro riding lawn mower. 12 h/p is hard to start

Toro riding lawn mower. 12 h/p
Briggs and Straton
Engine Model #281707
Type # 0175 01
Code # 87112511

I have a lawn mower engine that is hard to start. Note that after it has warmed up the engine runs fine.
It will restart again with no problem if the engine is still warm.
To get it started it has to jumped with a car battery and even then I have crank and crank and often will need to let it sit for a half hour and try again.
Carburetor has been cleaned.
This has been going on for 2 years.
We are thinking the engine valves may be worn. Can you give me possible ideas?
Thanks
Robin

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Hi there, It is most likely that the choke isn't closing fully. The throttle cable will need to be adjusted to cure this. The cable is clamped where it joins the engine. Simply slacken the bolt and move the outer cable out a bit. When you operate the throttle control you should see the choke start to operate near the start position. Make sure that the choke control rod operates to its fullest extent when the control is fully on the start position.

Posted on Sep 08, 2009

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Posted on Jan 02, 2017

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