Honda motorcycle parts
Choose your model and year to see parts listed for your bike.
Choose your model and year to see parts listed for your bike.
1982 Honda CB900C Custom · Pistons & Rings Buying guide
A 1982 model year does not reveal whether the engine has already been bored or fitted with replacement pistons. Measure each cylinder and piston before selecting these standard-size options, then calculate one ring set or complete kit for each position being repaired.
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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