Question about Craftsman 21 Hp 42" Deck, Ys 4500 Lawn Tractor

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Craftsman ys4500 tractor will crank but not turnover. changed battery and plugs. starter good...sprayed starter fluid in spark plug holes and engine fired blue smoke and then stalled out.

Posted by Anonymous on

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6 Suggested Answers

6ya6ya
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Posted on Jan 02, 2017

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wadembly
  • 489 Answers

SOURCE: Craftsman 917.270662 starts with starter fluid but won't stay run

the float in the carburator is stuck shut not opening alowing fuel to enter engine

Posted on Jun 08, 2009

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huffman49
  • 235 Answers

SOURCE: ys4500 Lawn Tractor will not start.

did you hit something while mowing if that is the case then check the flywheel key. even if it only has a small nick in it that would keep the engine from starting up...good l uck

Posted on Apr 11, 2010

wireguy212
  • 1627 Answers

SOURCE: starter get hot engine won't start

You likely need to get the valves adjusted,it sounds like the decompressor is not working.You need to get the compression down to 130 lbs while cranking or the starter can't overcome the compression.Try turning the motor past the compression stroke by hand and see if it will crank faster,if so then the decompressor is out of adjustment.If the decompressor is not just a lob on the valves then you need to call the repair depot for craftsman and find out what you need to do to fix the problem.If none of the above works then you may need a battery,or just clean the cables and battery posts.

Posted on Apr 19, 2010

philwalker78
  • 608 Answers

SOURCE: I HAVE A 2005 CRAFTSMAN LT1000 LAWN TRACTOR THAT

It sounds like the carby is flooding badly. Check that the float needle in the carby is sealing properly. You need to remove the float bowl on the bottom of the carby and hold the float up with your finger and check that the fuel stops flowing out when you do this. Regards Phil

Posted on Apr 14, 2011

roadtech7
  • 297 Answers

SOURCE: where is the spark plug located on my craftsman lawn tractor model 917.273360

James, it is at the front of the engine. It is next to the 4" by6" metal cover that says OHV. It is on the right hand side ( sitting on the tractor), There is a black wire the size of a pencil ( diameter ), hooked to it. It is set deep in the engines cylinder head. There is a rubber boot over the end of the spark plug. Remove the rubber boot, you will hace to grip it hard and pull it off. Then you will be able to remove it, using a deep 5/8" socket with a 4 to 6 inch extension.

Hope this helps, if you need more let me know.
Matt

Posted on Dec 02, 2011

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