Rivets for Intake Nipples

Those who are only familiar with slide carburetors such as Mikuni or Dell'Orto will have a new experience with a Linkert on Harley models such as Knucklehead, Panhead, or Flathead: The throttle lever is not pulled, but pushed with a rigid wire. Modern custom throttle grips, on the other hand, work by pulling....

These are the seals many of you have heard about, which will once and for all cure the notorious intake leaks of old manifolds. They are machined from PEEK (polyetheretherketone), a thermoplastic with a melting point of 650°F (343°C). Compared to brass seals this material has superior creep resistance and seal properties and can sustain large stresses over a long service life without significant extrusion.