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1981 Honda CB900F Fork Seal Driver

The 39mm seal driver is a workshop tool for servicing the 1981 CB900F Supersport fork, rather than a replacement fork component. Check the installed fork size before choosing it, particularly if the motorcycle has received a different front end.

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Honda CB1100F CB1000C CB900F CB700SC 39mm fork seal driver

1981-86 Honda CB1100F / CB1000C / CB900F / CB700SC 39mm Fork Seal Driver

$39.95 USD
35-4298
1981 Honda CB900F Motorcycle Parts 1982 Honda CB900F Motorcycle Parts 1983 Honda CB1000C Motorcycle Parts 1983 Honda CB1100F Motorcycle Parts 1984 Honda CB700SC Motorcycle Parts 1985 Honda CB700SC Motorcycle Parts 1986 Honda CB700SC Motorcycle Parts Honda CB Engine, Steering & Clutch Tools Honda CB Fork & Suspension Tools Honda CB Suspension & Wheel Parts Honda CB Tools, Hardware & Accessories Honda CB1000 Motorcycle Parts by Model & Year Honda CB700SC Nighthawk Motorcycle Parts (1984–1986) Honda CB900 Motorcycle Parts by Model & Year Honda CB900F Supersport Motorcycle Parts (1981–1982) Series 3: CB700-750SC (82-86) Series 4: CB900-1100 (80-83)
Install 39mm fork seals cleanly with this 39mm Fork Seal Driver. High-quality carbon steel with split design. Use for easy installation of 39mm fork...
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1981 Honda CB900F Supersport · Fork Seal Tools Buying guide

Match the driver to the fork being serviced

This carbon-steel tool has a split design and is listed for 39mm forks on the 1981–82 CB900F. The driver choice follows the fitted fork, so verify a changed assembly independently.

Parts to consider

1981-86 Honda CB1100F / CB1000C / CB900F / CB700SC 39mm Fork Seal Driver Split 39mm fork seal driverCarbon-steel split tool for 39mm fork-seal installation; listed for 1981–82 CB900F forks.View part

A tool size is not a complete seal specification

The 39mm driver is selected for fork-seal installation on the listed fork application. Replacement oil seals have their own full dimensions and must be ordered separately. Identify both the correct seals and the appropriate tool before dismantling the fork assembly.

Recheck the tool after a front-end change

Honda’s F fork procedure uses a dedicated seal driver and a defined order for the oil seal, retaining ring and dust seal. The 39mm split tool is a catalog alternative for that nominal fork size. Follow the actual fork and tool instructions; a changed front end needs a new size check.

Buying questions

Why use a seal driver instead of tapping the seal with a screwdriver?

The correctly sized driver supports the seal evenly and helps avoid damaging its lip or the fork tube. Inspect the tube and seal seat first, then follow the fork procedure for orientation and seating. A driver cannot correct a scored tube or a damaged bore.

Does the 39mm tool size give all the dimensions needed to buy a seal?

No. It identifies the nominal fork-tube application. The listed F oil seal has the separate full dimensions 39 × 52 × 11mm. Match the installed fork, the seal and the driver independently after any front-end change.

What else should be ready before dismantling the forks?

Have the correct seals, any needed dust seals or bushings, suitable measuring equipment and the F service procedure ready. Inspect retaining-ring grooves and sealing surfaces during the job. Release fork air pressure as directed before disassembly; the driver is only one tool in the repair.

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