18.5 b&s sheared flywheel key ?

I have a single sylinder b&s 18.5 it will run but only at one speed, if you try to throttle it up or down it dies it is also hard to spin over could this be a sheared flywheel key.i have changed the oil sparkplug and completly gone thru the fuel system and i dont know what to do with it.

What makes you think its a sheared flywheel key?

I could give you a shopping list of other reasons why an engine would be hard to turn over and die...lol

But, I would be happy to walk through some dianostics to help you out.

My engine does the same thing. No matter how much throttle or choke it runs at 1u speed which is really slow.

crafsmankiller wrote:

My engine does the same thing. No matter how much throttle or choke it runs at 1u speed which is really slow.

I'm online a lot so I can try and help. I don't always have the absolute right answer but I can maybe get you to the right direction to fix your problem.