Honda motorcycle parts
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1974 Honda CB360K0 · Piston Rings Buying guide
Ring size and cylinder condition matter more than the age of the motorcycle. Identify previous oversize work and assess the bore before committing to standard rings for either cylinder.
Each package supplies a top compression ring, a second ring and an oil-control ring for one piston. Count the pistons receiving rings before ordering. Both cylinders require two packages when the engine retains standard-size pistons and suitable bores.
A 1974 engine may have been rebored during its life. The original 67 mm specification does not prove that a particular motorcycle is still standard. Ask the person inspecting the cylinders to confirm size and condition before purchasing rings.
One package serves one piston. Order two packages for both pistons only after confirming that both are standard-size and that the cylinders are suitable for fresh rings.
This is a standard-size set for a 67 mm bore. An oversize piston needs rings selected for its actual size; the model year does not establish that size.
Have the bores measured and the piston markings identified. That establishes whether standard rings are appropriate and whether the cylinder condition calls for further work before assembly.
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