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.
1970 Honda CB750K · Pistons & rings Buying guide
Two standard piston kits can supply different combinations of rings and clips. Confirm the required cylinder size first, then compare the included pieces and the number of pistons covered by each listing.
Standard piston kit with ringsOne standard-size piston, rings and pin. Pin clips are not included and must be ordered separately.Voir la pièce
Standard piston kit with clipsOne standard-size piston with pin and a pair of clips; rings are not included.Voir la pièce
Second oversize piston kit with ringsOne +0.50mm piston with matching rings and pin. Clips are separate; confirm the required size before ordering.Voir la pièce
Pièces connexes : Standard-size rings for one piston · First oversize piston ring set · 15mm pin clip pair
Honda specifies a 61mm bore for the original CB750 engine. A previous rebuild may have changed that size, so have the present cylinders and pistons measured before ordering standard, +0.25mm or +0.50mm parts.
Record the piston maker, size and ring-groove requirements before ordering separate rings. A standard-size label does not establish compatibility with every aftermarket piston. Have the machinist confirm the piston manufacturer’s required clearance and the correct rings for the measured, finished bore before choosing standard or oversize parts.
Their contents differ. One includes rings and excludes clips; the other includes clips and excludes rings. Both are listed for one piston. Compare the package with the separate parts you already have or intend to purchase.
Have each bore checked for diameter, taper and out-of-round, and have the piston grooves and the proposed ring end gaps assessed. Match the rings to the fitted piston and finished bore. Use the piston and ring maker’s specifications rather than applying one assumed clearance to every replacement kit.
Have the cylinder and piston requirements assessed before ordering. An oversize ring listing names a specific size; it must match the piston and cylinder combination selected for the rebuild, rather than simply compensate for an unmeasured wear concern.
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