John Deere LX279 running rough.

[dtstreight]

John Deere LX 279 blew blue smoke. Forums said it was blown head gasket. Tore it down and both head gaskets were fine. Re-assembled but still running very rough and jerky. No blue smoke this time.
Any advice to try next?

 

[mechanic mark]

Did you perform a compression test?

 

[Tiger Small Engine]

Did you perform a compression test?

Also a leak down test. If unable then take it to a shop.

 

[dtstreight]

Ok. When I get those completed I’ll let you know results. Thank you.