PM Tuning Apr 1984 - Barrel and Head
Posted: Thu Aug 15, 2019 3:30 pmHi.
I've discovered an interesting barrel and head at the bottom of a box of bits that came with an old scooter.
It looks to me like a standard iron barrel that has been tuned, the engraving says " PM Tuned - Apr 84 - SP"
The exhaust port looks about 42mm and a standard big bore gasket seems to fit well.
The inlet port has stud centres about 64mm
The barrel is aprox 66mm bore.
It will need a clean and at least a hone, there aren't any ridges or lips to remove it just looks a bit rusty.
Which inlet manifold would work best if I wanted to use a non reed valve set up - or is it tuned for a reed valve ?
The head seems to be matched and has a rather interesting message etched into the under side - heaven only knows why this was added !
Worth keeping and fitting ? or put it back in the box ?
Thanks for your help - jr
I've discovered an interesting barrel and head at the bottom of a box of bits that came with an old scooter.
It looks to me like a standard iron barrel that has been tuned, the engraving says " PM Tuned - Apr 84 - SP"
The exhaust port looks about 42mm and a standard big bore gasket seems to fit well.
The inlet port has stud centres about 64mm
The barrel is aprox 66mm bore.
It will need a clean and at least a hone, there aren't any ridges or lips to remove it just looks a bit rusty.
Which inlet manifold would work best if I wanted to use a non reed valve set up - or is it tuned for a reed valve ?
The head seems to be matched and has a rather interesting message etched into the under side - heaven only knows why this was added !
Worth keeping and fitting ? or put it back in the box ?
Thanks for your help - jr
