Could also be caused by an over hot running engine, is the
timing set up ok. or carbon build up around the valves maybe. But you
could also try cooler plugs first.
I had the same problem once but cant remember now what cured it, cant
recall buying a new valve so maybe one of my above suggestions did
the trick.
cheers,
Ian.
=======================================
> > > role does the valve actually play. Is it really a potential reason
> > for my run
> > > on?
>
----------------------------------------------------------------------------
Ian.Rutherford@ncl.ac.uk
Tel.0191 222 7790
University of Newcastle,
Computing Service,
Claremont Tower,
Newcastle-upon-Tyne.
NE1 7RU.
England
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