Model #917256810 CRAFTSMAN lawn, tractor

Question and Answers

Q:

Craftsman Lawn, Tractor 917256810 doesn't start

A:

Thank you for your question.
I am sorry you are having a problem with the tractor. Oil coming out of the engine is not a good sign. I recommend looking around the engine to find where the oil was coming out. If the engine has a hole in the block, the engine has to be replaced. Usually the cost to repair the engine is more than the value of the tractor.

If the oil was coming out of the muffler, I recommend checking the oil level. If it is over full and smells like gas the problem is in the carburetor. The float is not regulating the fuel level in the bowl. When this happens the engine fills with fuel and will not run. To fix this the carburetor has to be cleaned or replaced. If you need assistance repairing this, please reply below. I will be happy to assist you.
Here is a link to order any parts you need. Sears Parts Direct .

If you do not feel confident repairing this problem yourself, then you can have it repaired at your home by a Sears technician. Here is a link for the website: Sears Home Services .

Thank you for using Manage my life.

Mark T.

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Mark T -
Sears Technician
September 07, 2012
Q:

My Craftsman riding mower's belt broke on the 42" deck. I purchased a new one at Sears, but unsure how to put it on. Any advice,please?

A:

I have provided you with the instructions for removing the deck and replacing the belt below. It is not necessary to completely remove the mowing deck but it makes it easier to clean the under side of the deck. Make sure to park the tractor on a level surface and set the parking brake before servicing the mower. If you need further assistance, please feel free to submit more details.

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Mark T -
Sears Technician
July 27, 2010
Q:

exuast valve not opening as maybe tappet valve stuck so how do I take apart unit and replace tappet valves and or maybe cam? 917256810 Craftsman Tractor

A:

Thank you for your question and I understand your concern. 

The first step is to remove the valve cover and inspect the rocker arm. Remove the spark plug wire and spark plug and spin the engine over to see if the push rod and rocker arm is moving up and down. If the exhaust valve push rod is not moving any at all, the engine will likely need to be taken apart to inspect the push rods, tappet and cam. The rocker arm, cam and tappet is likely ok but more likely the rocker arm clearence will need to be adjusted. You won't know until you remove the valve cover.

Turn flywheel until piston is at TOP DEAD CENTER at end of compression stroke and beginning of power stroke.

Adjust valves turning lock nut until valve clearance is:
.004−.008” (intake & exhaust)
Rotate crankshaft at least two (2) revolutions and recheck valve clearances. Readjust, if required. Here is link to a service manual that may be helpful. If you do not feel confident in diagnosing and repairing your engine, I recommend taking the mower in for repair.

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Joey S -
Sears Technician
August 01, 2014

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