Honda CB 650 1979

[Hibeealex]

Hi Guy's & Girls,

Wondering if you can help, my elderly neighbor has a 1979 Honda CB 650 it has been off the road for about 15 years, we have spent the last few weeks cleaning it up and greasing parts and basically getting it running again, we have done quite well considering our experience level but now have an issue with the front disc brakes in that we cannot get them to operate we have stripped them down replaced the pistons and seals and when they are off the bike we can see the piston travel ok, but when they are re installed on the bike there is no brake, we also changed the master cylinder and bled the brakes but still nothing we are coming to the end of our experience level and wonder if anyone might have an idea on what we can do next

[iangaryprice]

Try strapping the brake ever back against he twist grip. Leave for several hours - preferebly overnight. This will allow any trapped air to escpar up the brake line and in to the reservoir.

Front brake are notoriously difficultot bleed. The air bubbles ascend up the lines as you are trying to bleed them out downwards.

The other problem can be old calliper seals, the go sticky and pull the pistons back in too far.

Let us know how you get on.