Oversize 0.25mm piston kit for the Honda CB550 Four from '74-'78. If you're freshening up your top end, install new pistons while you're in there! Make sure the Letter stamped on the top two rings are facing up when installing them and stagger the ring gaps according to the manual.
Comes with everything shown. 4 piston kits to complete 1 engine.
Replaces Honda Part Numbers: 13102-374-000 (piston), 13011-374-000 (rings), 94601-15000 (clip), 13111-286-000 (pin)
Note: Be very careful when installing the cylinder over new pistons, it's helpful to have the proper tool to keep the rings compressed as you lower the cylinder over the pistons. Try to use only plastic tipped tools to prevent from scratching aluminum surfaces.
Ring Order:
Top Compression Ring (silver outer rim)
Second Ring (black outer rim)
Bottom Rings (3 pieces - Spacer in the middle - 1 thin ring on either side)
Fits Honda:
CB550F Super Sport - 1975-1977
CB550K Four - 1974-1978
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