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.
1978 Honda CB400TII Hawk II · Valvetrain Buying guide
An exhaust valve, its stem seal and a guide retaining clip do different jobs. Match the worn component and count the service positions instead of ordering by a broad valve-parts label.
Exhaust valveReplacement exhaust valve corresponding to reference 14721-413-000 for the CB400TII cylinder head.Voir la pièce
Valve-stem sealIndividual valve-stem seal for the listed Hawk II application. Order the number required by the cylinder-head work.Voir la pièce
Valve-guide retaining clipIndividual valve-guide clip replacing reference 12211-250-310; choose the quantity needed for the guides being serviced.Voir la pièce
Replacing a valve is only part of cylinder-head service. The seat and guide must also be assessed for wear and damage. Have the head checked to Honda’s specifications before ordering machining work or assuming that a new valve alone will restore sealing.
The seals and guide clips are individual items. Make a position-by-position list and compare it with any gasket-set contents already purchased. This avoids both short orders and duplicate sealing parts when the cylinder head and engine gasket work overlap.
The valve stem, guide clearance and seat condition should be inspected together. A new valve does not establish that the surrounding parts are serviceable; use the Honda manual or an experienced cylinder-head machinist.
No. The featured valve-stem seal is sold individually. Count the positions being serviced and check any other gasket or seal package already on your order before choosing the quantity.
Order clips when guide service or inspection shows they are required. They are individual retaining parts, so match the guide arrangement and count the affected positions instead of assuming a complete-head pack.
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