Rear Master Cylinder - Assembly
Warning Brakes - Mineral based grease
warning
Never use mineral-based grease (such as lithium or copper based grease) in any area where contact with the braking system hydraulic seals and dust seals is possible. Mineral-based grease will damage the hydraulic seals and dust seals in the calipers and master cylinders.Damage caused by contact with mineral-based grease may reduce braking efficiency resulting in loss of motorcycle control and an accident.
warning
Before installation, all internal brake components should be cleaned and lubricated with clean new DOT 4 brake fluid.Never use solvents, petrol (gasoline), engine oil, or any other petroleum distillate on internal brake components as this will cause deterioration of the hydraulic seals in the calipers and master cylinders.A dangerous riding condition leading to loss of motorcycle control and an accident could result if this warning is ignored.
Rear Master Cylinder Assembly LG1; LGX
- Clean the master cylinder bore, piston and seals, with new brake fluid.
- Ensure all ports are clear of obstruction.
- Install the spring and piston set together.
- Apply a small amount of brake grease to the push rod.
- Install the push rod in the master cylinder and retain with a new circlip.
- Refit the dust boot.
Rear brake master cylinder
Piston set
Push rod
Circlip
Dust boot
Brake switch plate
Clip
Clevis pin
- If the push rod and brake switch plates have been disassembled, set the brake switch plate (A) to 39 mm and the push rod free length (B) to 91 mm, as shown below.
- Tighten the lock nuts to 17 Nm.
warning
Ensure that the piston and piston seal are fitted facing the same way as noted during removal. A dangerous riding condition leading to an accident could result from incorrect assembly of the master cylinder.
Push rod and brake switch plate setting dimensions |