Pièces pour motos Honda
Choisissez votre modèle et l’année pour voir les pièces répertoriées pour votre moto.
Choisissez votre modèle et l’année pour voir les pièces répertoriées pour votre moto.
1980 Honda CB900C Custom · Pistons & Rings Buying guide
Standard-size rings and pistons suit a measured standard-size rebuild, not every engine carrying a CB900C badge. Previous boring, piston wear and damaged ring grooves can change the required parts even when the engine still runs.
Standard piston ring setRings for one piston; four sets are required for all four pistons.Voir la pièce
Standard piston kitOne standard piston with rings, pin and clips; four kits cover all four pistons.Voir la pièce
Piston-pin clip pairTwo Japanese-made 15mm clips; reference 94601-15000.Voir la pièce
Honda’s inspection checks both the cylinder and piston, including the ring grooves and the gap of each ring in its cylinder. New rings will not repair a cracked piston, worn grooves or an out-of-limit bore. Ask the rebuilder to establish the finished size before choosing the standard ring set or standard piston kit.
The listed ring set covers one piston. The complete kit adds one standard piston, pin and clips. Label the cylinders and record their measurements so one good bore does not stand in for all four. The Honda procedure requires engine removal for this work, so include the disturbed head and base sealing parts in the plan.
No. Inspect its skirt, pin bore and ring grooves, and measure its clearance in that cylinder. A worn standard piston remains standard in name but may be unsuitable for new rings.
No. Measure the cylinder at several heights and in two directions. If wear or previous machining requires a different finished bore size, choose the matching piston and rings with the rebuilder rather than forcing the standard set into the repair.
Confirm the finished bore, piston clearance and ring gaps; a kit does not remove those checks. It already includes the pin and clips for one piston, so compare the supplied contents before adding duplicate small parts or calculating the order for all four cylinders.
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