Inspection and repair

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Renewing the fluid

10 Changing the brake fluid is a similar process to bleeding the brakes and requires the same materials plus a suitable tool for siphoning the fluid out of the hydraulic reservoir. Also ensure that the container is large enough to take all the old fluid when it is flushed out of the system.

11 Follow Steps 3 and 5. then remove the reservoir cap. diaphragm plate and diaphragm and siphon the old fluid out of the reservoir Fill the reservoir with new brake fluid, then follow Step 7.

12 Retighten the bleed valve, then release the brake lever or pedal gradually. Keep the reservoir topped-up with new fluid to above the LOWER level at all times or air may enter the system and greatly increase the length of the task. Repeat the process until new fluid can be seen emerging from the bleed valve.

1 Position the motorcycle on its centrestand if fitted or on an auxiliary stand. When checking the front wheel, support the bike so that it is raised off the ground. Clean the wheels thoroughly to remove mud and dirt that may interfere with the inspection procedure or mask defects. Make a general check of the wheels (see Chapter 1) and tyres (see Daily (pre-ride) checks).

2 To check axial (side-to-side) runout, attach a dial gauge to the fork slider or the swingarm and position its stem against the side of the rim (see illustration). Spin the wheel slowly and check the amount of runout at the rim. To accurately check radial (out of round) runout with the dial gauge, remove the wheel from the machine, and the tyre from the wheel. With the axle clamped in a vice and the dial gauge positioned on tho top of the rim, rotate the wheel and check the runout.

3 An easier, though slightly less accurate,

Hold string so that these distances are equal

String held taut method is to attach a stiff wire pointer to the fork slider or the swingarm and position the end a fraction of an inch from the wheel (where the wheel and tyre join). If the wheel is true, the distance from the pointer to the rim will be constant as the wheel is rotated. Note: If wheel ivnout is excessive, check the wheel bearings and axle very carefully before replacing.

4 Visually inspect the wheels for cracks, flat spots on the rim, and other damage. Look very closely for dents in the area where the tyre bead contacts the rim.

5 If damage is evident, or if runout in either direction is excessive, the wheel will have to be rebuilt by a professional wheel builder who will replace the damaged components with new ones, then make sure the wheel is properly aligned, tensioned and balanced.

12 Wheels -

Simple Car Care Tips and Advice

Simple Car Care Tips and Advice

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