kirbybikes
Husqvarna
AA Class
Last spring I finally got sick of my leaking master cylinder. Went on a search for a replacement, hard to find a new one and very expensive, thought about a rebuild but did not want to keep revisiting this problem. I contacted Magura directly and they helped with the part numbers to build up a replacement, there is no prebuilt kit so the parts are sourced one piece at a time all from the same supplier on Amazon.
Magura #2000302 master cylinder model 167 9.5 piston diameter for mineral fluid left side.
Magura #0723189 Deco Lever kit (High Idle Lever)
Magura #2700177 Mirror clamp black with m10x125 threads
Magura #0723187 safety start switch
The tube will hook up to 167 master same as it is on the 163 master.
The conversion was relatively easy. I bled the system so I was starting with fresh fluid not contaminated stuff in the clutch slave and hose. Removed the old lever, bolted on the new and started adding the extra pieces.
For the safety start switch you will have to figure out some new connectors to the bike harness, protected spades would work ( I went with a really nice Duetsch connector I had around).
The Deco lever required the barrel from the cable to be filed or ground down to reduce the height as it is thicker than the lever, file or a dremel type tool was used and the barrel held with pliers if you like your finger tips. Not the diameter of the barrel but the height.
To fill the cylinder I just kept filling the tank and stroking the lever with the occasional taps on the cylinder to work the air out. Then I gave the system a full bleed. I used a really light fork oil (but probably voided the warranty). Recommended is the Magura blood. Use what ever you feel but it needs to be a mineral oil base, I have read people use everything from baby oil to olive oil.
Haven't had any problems or leaks since.
Kirk
Magura #2000302 master cylinder model 167 9.5 piston diameter for mineral fluid left side.
Magura #0723189 Deco Lever kit (High Idle Lever)
Magura #2700177 Mirror clamp black with m10x125 threads
Magura #0723187 safety start switch
The tube will hook up to 167 master same as it is on the 163 master.
The conversion was relatively easy. I bled the system so I was starting with fresh fluid not contaminated stuff in the clutch slave and hose. Removed the old lever, bolted on the new and started adding the extra pieces.
For the safety start switch you will have to figure out some new connectors to the bike harness, protected spades would work ( I went with a really nice Duetsch connector I had around).
The Deco lever required the barrel from the cable to be filed or ground down to reduce the height as it is thicker than the lever, file or a dremel type tool was used and the barrel held with pliers if you like your finger tips. Not the diameter of the barrel but the height.
To fill the cylinder I just kept filling the tank and stroking the lever with the occasional taps on the cylinder to work the air out. Then I gave the system a full bleed. I used a really light fork oil (but probably voided the warranty). Recommended is the Magura blood. Use what ever you feel but it needs to be a mineral oil base, I have read people use everything from baby oil to olive oil.
Haven't had any problems or leaks since.
Kirk
