#Brake caliper piston tool manuals
#Brake caliper piston tool drivers

Standard 'o' are not compatible with DOT 4 brake fluid use them and Yamaha's warning might be brought home. There is an 'o' ring sealing the plug, which Yamaha do not supply, but we can! The cynical amongst you might think that Yamaha are better off selling a whole new caliper, but we couldn't possibly comment! We must however emphasize that these are NOT standard 'o' rings. This tool is machined from aluminium so that it is less likely to mark the soft 'blue spot' nuts. In reality they can be taken out with this tool and a 22mm socket/ring spanner.

#Brake caliper piston tool manuals

Yamaha claim in their manuals that they can't be taken out and death will be the reward for those who try :) When the calipers were made they were line bored and plugs inserted, which are secured in place with the 'blue spot' nuts for which there are no tools available. As these calipers can't be split you can't use a standard piston removal tool so you are stuffed. When corrosion gets behind the seals, they are forced against the pistons seizing them. The problem is that people don't change their brake fluid as often as they should and these brakes suffer from corrosion. Yamaha Blue Spot Caliper Dismantling Tool Yamaha's iconic Blue Spot calipers are a great set of stoppers and are often bought second hand from breakers to upgrade the brakes on older bikes such as the FJ1200, onto which they bolt straight on.

#Brake caliper piston tool drivers

As bikers, we are vulnerable enough at the hands of car drivers who seem hell bent on killing us off as a race, without having iffy brakes! Another issue with water in the fluid is that as the brakes are applied the friction makes them heat up and as water only reaches 100☌ before boiling, the water in the fluid turns into steam making the fluid compressible and further reducing the efficiency of the brakes. This effectively reduces your braking efficiency and will eventually sieze the caliper altogether. Water in the brake fluid will corrode the working parts of your braking system, which isn't a good thing! The most common problem is that the aluminium of the caliper, behind the piston seal corrodes and pushes the seal too tightly against the piston which means that you need more pressure to move the piston against the pads. But how do you tell? Obviously with one of these testers! If in doubt change it it's not that expensive. If it has more than a few percent of water it should be changed. Brake fluid is hygroscopic, which means that it absorbs water. Each wrench is laser etched with its size. The wrenches fit tightly over the brake caliper pistons for easy removal.

Electronic Brake Fluid Tester This is a tool we have only just discovered ourselves and we are bowled over by it. These Piston Removal Wrenchs are made from 6061-T6 aluminum and finished with a black anodizing.