Husqvarna will crank but won't Start.

[sam1967]

Husqvarna YTA 24v/48 Body Product #960450052, Serial #032717A040676 Serial # on engine is 16 0810 YG 30268
My son was mowing a few days ago and ran out of gas. He filled up the tank with no more than a week-old gas and continue to mow for an hour until the mower died. Mower cranks but won't start even which starting fluid. Check the solenoid below fuel bowl it clicks while turning key. I also took it apart and verify it move with key. I sprayed with WD-40 and reinstalled. Took hose off at fuel filter made sure no air, took fuel hose off at fuel pump turned key lots of fuel pumps out. Took both spark plugs off and tested against block of engine both had good spark. I will be trying to locate a combustion tester tomorrow. I will say while cranking the motor it doesn't appear to me the motor is even close to starting.

Thanks in advance for any responses.

 

[Bertrrr]

If it does not hit when using starting fluid it would seem to be ignition - if you have spark you'll need to look at the timing - maybe sheared the keyway on your flywheel - it does not take much. Did he hit something hard while mowing ? Hold your finger in the spark plug hole while cranking it over you should feel compression easily.
Compression does not go out all at once so doubtful that is your problem. Look at your keyway

 

[Rivets]

I would pull the valve covers and check to see if the valves are operating properly and have the correct valve clearance.

 

[sam1967]

If it does not hit when using starting fluid it would seem to be ignition - if you have spark you'll need to look at the timing - maybe sheared the keyway on your flywheel - it does not take much. Did he hit something hard while mowing ? Hold your finger in the spark plug hole while cranking it over you should feel compression easily.
Compression does not go out all at once so doubtful that is your problem. Look at your keyway

Good morning Bertrr. Thanks for the response. I will check those sparks plug holes today. I will watch some YouTube videos on the keyway on the flywheel and see what I can learn. Not sure if he hit something hard, we have 2 1/2 acres and he's always hitting something. I will report back.

 

[sam1967]

I would pull the valve covers and check to see if the valves are operating properly and have the correct valve clearance.

Good morning, Rivets, thank you for the response. I was thinking to pull those valve covers and checking the clearance and will do so today. I forgot to mention it's a 2017 model. I have never done this before do you know the clearance for this model? I will watch some youtube videos on how to do this and will report back.

 

[Joed756]

First check your flywheel key, before spending time on anything else. I would suggest that you just go ahead and change the key in case it's cracked or something and you can't see it. That key controls the engine timing.

 

[sam1967]

Good morning, Rivets, thank you for the response. I was thinking to pull those valve covers and checking the clearance and will do so today. I forgot to mention it's a 2017 model. I have never done this before do you know the clearance for this model? I will watch some youtube videos on how to do this and will report back.

First check your flywheel key, before spending time on anything else. I would suggest that you just go ahead and change the key in case it's cracked or something and you can't see it. That key controls the engine timing.

Hey Joed756, so I started to dig into the motor and found some major items wrong. First, I have to go get a flywheel puller to check/replace the flywheel key. In the meantime, I took a number two pencil to make sure the pistons were moving, and they are. But I thought I would pull the valve covers and found a bent rod on the left side facing the motor and on the right side neither rods are moving. How bad is this?

 

[Rivets]

Provide us with all engine numbers and we’ll see if we can find you a service manual.

 

[sam1967]

Provide us with all engine numbers and we’ll see if we can find you a service manual.

Engine serial number 16 0810-YG-30268 Thanks

 

[Rivets]

To me those aren’t engine numbers. Should be an ID tag. Ex. Briggs look on the valve cover, Kaw & Kohler black and silver tag.