How To Bleed 2012 Honda VFR1200F Motorcycle Brakes

How to Bleed the Brakes on a 2012 Honda VFR1200F

The VFR1200F is a big, fast sport-tourer, and it carries a lot of mass at a lot of speed. That makes the hydraulic system that slows it down worth more attention than the average weekend project. Bleeding the brakes — pushing fresh fluid through the lines and driving out trapped air — is one of the few jobs that rewards patience far more than speed. Rushed, it leaves you with a soft lever and a bike you cannot trust. Done methodically, it restores a firm, consistent lever and pedal and gives you a clear look at the condition of the whole system while you are in there.

First, Understand the Layout You Are Working On

The 2012 VFR1200F uses hydraulic disc brakes at both the front and the rear, so both ends are bled using the same basic technique. Honda offered this model in both conventional and ABS-equipped forms, and the ABS version uses a combined system in which the lever and the pedal can act on more than one wheel. Before you start, take a look at your own machine: an ABS modulator and additional hard lines will be visible near the frame and steering head area on equipped bikes. If your VFR1200F is the ABS/combined variant, a routine flush through the caliper bleeders is still the normal service, but understand that the system has more volume and more places for air to collect. If air has entered the modulator itself — because the reservoir ran dry, or because the unit or its lines were disconnected — that is not a garage job. Take the bike to a shop with the appropriate diagnostic equipment.

Signs That Bleeding Is Due

The most obvious cue is feel. A lever that pulls closer to the grip than it used to, or a pedal that feels spongy rather than solid, means air or degraded fluid is in the system. Dark, cloudy, or discolored fluid in the reservoir is another clear signal. So is any recent work that opened the hydraulics: new lines, a caliper rebuild, or master cylinder service all introduce air that must be purged.

Even with no symptoms at all, brake fluid absorbs moisture from the air over time. That moisture lowers the fluid's boiling point, and under hard, repeated braking — exactly the kind of use this bike invites — the fluid can boil and produce a lever that goes soft or long. Many riders refresh the fluid on a regular schedule for that reason alone.

Tools and Supplies to Gather

• Fresh brake fluid of the type marked on your master cylinder reservoir cap, from a sealed container
• A box-end wrench that fits the bleeder valve snugly
• Clear tubing that fits tightly over the bleeder nipple
• A small catch bottle for the old fluid
• Rags or shop towels, plus a syringe or turkey baster for emptying the reservoir
• The correct driver for the reservoir cap screws
• Optional: a one-way check-valve bleeder or a vacuum bleeder, both of which make a solo job easier

Setting Up Without Damaging the Bike

Get the motorcycle secure and upright on a stand so it cannot tip while you are working the lever. Turn the handlebars until the front reservoir sits level, then lay rags over the tank, the plastics, the instrument cluster, and anything else below the reservoir. Brake fluid attacks paint and many plastics on contact, so a spill that sits for a minute can leave permanent damage. If a drop does land somewhere it should not, wipe it up immediately and rinse the area with water.

Bleeding the Front Brake

1. Remove the reservoir cap and diaphragm, then use the syringe or baster to draw most of the old fluid out. Leave enough in the bottom that you do not uncover the port and pull air into the line.
2. Refill with fresh fluid from the sealed container.
3. Push the clear tubing onto the bleeder valve and route the other end into the catch bottle, with the bottle positioned so the tube end stays submerged.
4. Squeeze the lever and hold it steady.
5. Open the bleeder about a quarter turn. Fluid and any trapped air will push out through the tube.
6. Close the bleeder before you release the lever. Releasing with the valve open draws air back in through the nipple.
7. Repeat the squeeze, hold, open, close, release cycle, topping off the reservoir as you go so it never runs low.
8. Continue until the fluid coming through the tube is clean and free of bubbles, then close the bleeder.

If your bike has two front calipers, bleed each one in turn rather than trying to do both at once. As a general practice, start with the caliper farthest from the master cylinder and work toward the closest.

Bleeding the Rear Brake

1. Locate the rear reservoir and confirm it sits level, then open it and remove most of the old fluid.
2. Top it up with fresh fluid and fit the clear tubing over the rear caliper bleeder.
3. Press and hold the pedal, crack the bleeder a quarter turn, then close it before releasing the pedal.
4. Repeat, keeping the reservoir topped off, until the fluid runs clean and bubble-free.

Finishing the Job

Tighten each bleeder snugly with the box-end wrench — firm enough to seal, without overtightening and damaging the seat. Fill the reservoir to the level marking, reinstall the diaphragm and cap, and wipe down every surface you touched. Then inspect the bleeder valves and the banjo fittings at the master cylinder and calipers for any sign of weeping or a wet film.

Confirming the Brakes Are Right Before You Ride

The lever and pedal should feel firm and consistent, and should hold that feel when you apply steady pressure for several seconds rather than slowly sinking. Spin each wheel by hand to confirm nothing is dragging. Then, in a safe open area, test the brakes at low speed before riding normally. If anything feels vague, stop and diagnose rather than hoping it settles in.

When to Hand It Off to a Shop

If the lever will not firm up after several full bleeding cycles, if it only firms up after repeated pumping, if bubbles keep appearing no matter how long you work, or if you find fluid leaking at the master cylinder or a caliper, stop. The same applies to any ABS-equipped bike where the reservoir ran dry or the modulator was disturbed, and to any combined system where you are not confident of the correct sequence. Those situations call for dealer-level tools and knowledge, and brakes are not the place to guess.

Related Shopping Categories

Shop Brake Fluid for a 2012 Honda VFR1200F Motorcycle.

Shop Brake Lines for a 2012 Honda VFR1200F Motorcycle.

Shop Brake Pads for a 2012 Honda VFR1200F Motorcycle.

Shop Stands for a 2012 Honda VFR1200F Motorcycle.

Shop Brake Tools for a 2012 Honda VFR1200F Motorcycle.

Disclaimer: This guide is provided for general informational purposes only and is not intended to replace your motorcycle's official owner's manual. Always refer to your manufacturer's documentation for model-specific instructions, torque specifications, safety procedures, and maintenance requirements. If you are unsure or inexperienced, consider seeking assistance from a qualified mechanic or technician.