Since doing the tracker build a couple years ago, I have been keeping up with maintenance on the motor (over 20k miles), its original and I don’t believe ever apart. It has been having oil blow by which my side covers have spray, drip of oil on the plug wires, etc. I have replaced the cam orings which hasn’t resolved the issue. In addition, one of my oil changes I had the tell tale signs of the chain guide wear/age with plastic pieces in the filter. I am thinking of just a top end and pending other signs or issues do a full rebuild if needed.
When removing exhaust pipes I noticed a film that was sitting at the bottom of the exhaust port, is this a sign of valve sealing issue? I have not located a specific leak around the external of the head leading to the blow by issue and wondering if this is problem. When riding it then blows back all over covers and plug wires?
I have read some on replacing the cam chain if there is excessive wear, can this be done with just a top end or does it require full rebuild? I am envisioning connecting new/old chain to pull around crank for install but not sure if it’s as easy as I am thinking…
When removing exhaust pipes I noticed a film that was sitting at the bottom of the exhaust port, is this a sign of valve sealing issue? I have not located a specific leak around the external of the head leading to the blow by issue and wondering if this is problem. When riding it then blows back all over covers and plug wires?
I have read some on replacing the cam chain if there is excessive wear, can this be done with just a top end or does it require full rebuild? I am envisioning connecting new/old chain to pull around crank for install but not sure if it’s as easy as I am thinking…
ordered , thanks Jim
