hey hey,

 i have searched the archives and have done alot to figure out the problem.
the problem:  my 87 westy drives GREAT aound town and anywhere as long as
i'm not at 65-70 for any extended period of time (20-30 mins.)  as soon as i
reach that point, it starts to lose power and sort of buck and skip. not to
mention, very poor gas mileage.  i shut it off, start it back up and it's
okay, for about 20 mins or so.   i have: changed the o2 sensor, the temp
sensor (the one below the thermostat) the fuel pressure regulator, the
ignition coil, the fuel pump & filter, added a fuel filter in front of the
pump... all based on recommendations in the archives.  does anyone think
that it is the"magic" harness that will solve this? and if so, what is that
part called?  and where would i get one?

Thanks again!

Jamie
87 westy
78 vespa
98 golden retriever