It starts pinging and dies when you engage the mower

Craftsman Garden Tractor 917.28746 Engine shuts off when ...

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Craftsman Garden Tractor 917.28746 Engine shuts off when engaging mower deck. 917.28746 ... Then start the tractor and pull the pto button out. If the engine ...

Why does my engine die when the blade is engaged ... - iFixit

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iFixitI have an older Murray riding lawn mower, whenever I engage the mower the engine dies, otherwise it runs .... My dr feild brush mower ... cuts off when I engage theblades. ... My Huskee only shut off once I put it in drive with the blade engage.

Riding Lawn Mower Problem - Dies when PTO engaged - GardenWeb

forums2.gardenweb.com > Garden Forums > Tractors

Apr 28, 2008 - When I pull the switch to engage the PTO, the engine bogs down real ...off I can keep the engine running with the mower engaged then it is fine ... Riding mower cuts out
May 18, 2010
mower dies when I let off the clutch
Sep 19, 2008
pto on Cub Cadet will not stay engaged...
Apr 6, 2008
Craftsman Mower deck (clutch) Won't engage
Jul 1, 2006
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Sounds like you have a valve slap. First let your car cool for an hour and check your oil level, and transmission fluid if you have one... if they are good, see if the noise starts right away when you fire up listen to see if it starts as soon as the fan starts. .... a lot of fans have an auto engage on the rad fan... when they wear out they will try and engage and you will get a ping ping sound as the hub try to do its job and start the fan.... I have also seen a stick get caught up under the car and just barely touch the fan so that every time it rotated....ping ping...

safety switch in the seat and in the brake. if one of those is open, engine will die when you engage the blades. Owners manual should have wiring diagram so you can bypass switches to test (if you have brake applied and are sitting in the seat and that is when it is dying).

You will cause the engine to go bad and have to replace if you keep driving,like a tooth ache,will get worst.

it sounds to me that #7 has a valve train problem, wiped cam to broken rocker arm,bent pushrod,broken spring,bent valve or burnt bad! Or it has broken ring on piston. shouldnt have kept driving,very bad idea. pull valve cover to check valve train. I would start there before going deeper into motor.

check fuel injectors or throttle position sensor

It sounds like the ignition may be firing early at times. If it sounds like it is knocking and pinging then this can be ******* the engine to keep it running like this. It is better to get off the roadway and shut it down. Check for engine codes, etc.

I hope this helps.

Not familiar with tecumseh lawn boy. Lawn boys I worked on were 2 stroke, if this is the case the crank seal is sucking air after engine warms up. New seal would fix. If you can't do it you're self may not be economically worth it.

filter maybe very dirty, you may need a new spark plug, you're carberator may have just a spec of debris in it , all things that happened to us also, this man is a wizard with small engines..www.belgiumsmallengine.com

I need more info. Any trouble lights come on? Was it low on oil? Was the engine overheated? What was the coolant level? Were you towing at the time? Give me all you know and I can give you some ideas what it might be.