B&S 650 series won't start

[Fish]

The last time I tried the "Thumb Test" on a neighbor, I got slapped with a restraining order.....

Have you checked your valve clearances?

 

[illinicj]

The last time I tried the "Thumb Test" on a neighbor, I got slapped with a restraining order.....

Have you checked your valve clearances?

i was waiting for that...

I did not check valve clearances - no idea how. I did more the grass this afternoon tho!

 

[Fish]

"More the grass"??

 

[Fish]

Ok, I have figured out the cause. The exhaust valve seat has come partially out of the block. The exhaust valve cannot fully close, which I couldn't tell from the angle I had earlier. Now I have the engine off and on the bench, and I can see the valve doesn't seat all the way around. Now what???

So are we all talking about the same mower now????

 

[illinicj]

"More the grass"??

Mow. Stupid auto correct

 

[illinicj]

So are we all talking about the same mower now????

Yep. Gently tapped the valve seat back in with a socket. Fit very snugly. Peened as well as i could around the edges and put it back together. Ran fine. It'll probably come out again one of these days, but now I'll know what to do.

 

[Mowerman99]

Nice... If you did it right, it should last a while! Fish is right though... try not to thumb test your neighbors anymore....

 

[illinicj]

Nice... If you did it right, it should last a while! Fish is right though... try not to thumb test your neighbors anymore....

Ha ha, thanks for the help guys