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1981 Honda CB900F Pistons & Rings

The 1981 CB900F piston choices are standard-size kits and ring sets, with pins and 15mm clip pairs available separately. Cylinder measurements decide whether these standard-size parts suit the engine; package quantity then decides how many you need for the repair.

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Honda CB Piston Pin Clips 15mm Pk/2 ~ Replaces 94601-15000

Honda CB Piston Pin Clips 15mm Pk/2 ~ Replaces 94601-15000

$1.95 USD
05-7201
Secure your piston pins with this 2-pack of 15mm Piston Pin Clips, Japanese made to superior quality and replacing OEM Ref. #94601-15000. Exceptionally broad...
Honda CB piston pin 13111-300-000

Honda CB Piston Pin ~ Replaces 13111-300-000

$8.95 USD
05-7200
Replace a worn or damaged piston pin with this Piston Pin, Japanese made to superior quality and replacing OEM Ref. #13111-300-000. Fits the full...
Honda CB900C CB900F piston ring set (standard size) 13011-438-004

1980-82 Honda CB900C / CB900F Piston Ring Set (Standard Size) ~ Replaces 13011-438-004

$34.95 USD
73-1023
Rebuild your CB900 cylinders with this Standard-Size Piston Ring Set, OEM #13011-438-004 (Std.). Japanese-made, superior quality.Note: this set includes piston rings to rebuild one...
Honda CB900 standard piston kit with rings 13101-438-000

1980-82 Honda CB900 Piston Kit with Rings ~ Standard Size

$74.95 USD
05-8000
Upgrade or rebuild your classic Honda motorcycle engine with this Standard Size Piston Kit — complete with piston, piston rings, and piston pin. This...
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1981 Honda CB900F Supersport · Pistons & Rings Buying guide

Measure first, then count by cylinder

The CB900F has a nominal 64.5mm bore, but its present cylinder condition determines whether standard-size parts are usable. Measure before choosing a rings-only repair or a piston kit; both listed packages serve one cylinder.

Parts to consider

1980-82 Honda CB900 Piston Kit with Rings ~ Standard Size Standard piston kitIncludes one piston, rings, pin and clips; four kits are required for four pistons.View part 1980-82 Honda CB900C / CB900F Piston Ring Set (Standard Size) ~ Replaces 13011-438-004 Standard ring setJapanese-made rings for one piston, reference 13011-438-004.View part Honda CB Piston Pin Clips 15mm Pk/2 ~ Replaces 94601-15000 15mm pin clipsTwo retaining clips per pack, reference 94601-15000.View part

Related parts: Separate piston pin

A rings-only repair still needs measurements

Standard rings cannot compensate for an unsuitable bore or damaged piston grooves. Assess each cylinder and piston, then check ring fit to the Honda service limits. A nominal model specification is a starting point for identification, not proof that an old engine remains standard size.

Account for the pin and its retaining clips

The piston kit includes its pin and clips; the separate pin does not. Inspect the retained piston and pin fit before choosing a pin-only repair. Replace removed retaining clips with the correct new clips and verify that they are fully seated during assembly.

Buying questions

Can I order standard rings before measuring the cylinders?

Measure first. Bore wear, taper, out-of-round, piston clearance and ring-groove condition determine whether a rings-only repair is appropriate. The standard-size listing does not establish the condition of your CB900F cylinders.

When is the piston kit preferable to rings alone?

Choose after inspection. The kit adds a piston, pin and clips to the rings and is useful when the piston also needs replacement; it still requires a suitable bore. A serviceable piston may need only correctly sized rings and any separately required small parts.

Can I reuse the piston-pin clips after removal?

Use new clips of the correct 15mm application. The separate pack contains two, enough for one piston, while the piston kit already lists clips. Check the grooves and make sure both clips seat fully before assembly continues.

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