I just got 2 c90 cubs a week or so ago 1 in bits and the other one smoking badly and wount keep on running.
I have stript the one down and the barrel looked ok, but it looked like the oil was coming from the exaust valve, so i replaced the valve stem seals and put some new rings on the piston and it still smokes badly an doesent want to run.
It starts up and just dies. Ihave stripped it again and it feels like there is play in the valve guide in the head,
has anyone had a similar problem is it the head or do i need a reboar?
Hope you can help
