Part #8 on the Cylinder Head Diagram Package includes Intake / Exhaust Stud Part Number (See Parts Manual): 1-8 Features: The Intake / Exhaust Studs hold your muffler and intake manifold to your 2-stroke 48cc or 66/80cc motorized bike engine Installation requires extracting your existing studs with a stud extractor. Once extracted, replthe stock studs with these new studs. Mount your muffler or carburetor and youre ready to ride.
