engine ran fine then wouldn't start

[MidNightIllusions]

Well had an interesting day yesterday.
We were out having fun on the karts then the 5hp briggs started to squeal really loud.
- This was caused by the clutch recoil. Gave it a shot of oil and good as new.

Then the engine wouldn't start later that day. We had Air, fuel, and spark.
- Cause of the no start was the flywheel key sheared and spun the flywheel on the shaft. Then the spark timing was incorrect.
Installed new key and good as new.

I just thought I'd post this to help anyone with the same issue.
Spark, fuel, air, and timing are the 1st things to start a diagnosis on a engine.

 

[Russ2251]

And the key sheared because....?

 

[MidNightIllusions]

Actually I'm not sure why it had sheared. The key did have play in it. I'm not sure the history of it. But no problems since new OEM key was installed.

 

[OzFab]

And the key sheared because....?

One thing led to the other...

I had a similar problem with the little princess' kart; the recoil clutch locking up & squealing causes it to undo itself &, since the recoil clutch holds the flywheel in place... you see where this is going, right?

 

[MidNightIllusions]

Yes this is very true and I do. We had pretty much same issues. Lol