Thanks L.A.B.
Sorry, yes, it's an S reg = 1998 T140V, a positive earth model.
There is no breather from the exhaust rocker cover anywhere, just the crank breather where it exits behind the barrels on the left.
It does chuff a little smoke on over run, which suggest worn valve guides or rings ? Though why would oil, not just fumes, be exiting from the breather behind the head stock ? Could it be pressurising the oil in the frame, A - because there is no exhaust rocker breather, and/or B - because the valve guides/bores are worn, and therefore sending it out the frame breather that way, along with some oil
?
Also, where does the exhaust rocker cover actually breath from, as my last 1981 T140V didn't have a breather there either ?
Your further thoughts would be much appreciated.
Thanks,
Edward