CalsXS2
XS650 Guru
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My 72 master cylinder was full of what looked like powdered Parmesan cheese when I got it. I have the MC off the bike right now. The plunger will go in and out freely, but it will not push any fluid. So I just pulled the plunger out to see what I could see. While there's nothing torn, it's a bit crusty and rusty in there. So I figure a rebuild is in order. I have everything soaking in Evapo-Rust to clean it up. It's not really that bad though.
So I have another MC off of another bike. Unknown year. It's reservoir is a lot taller than mine. So I'm guessing it's from a dual disc set up. The caliper and hose do however look identical to my 72.
So on my 72, on the bottom, it is marked 5/8. On the unknown, it is marked 11/16. Is this the bore diameter?? I guess I could pull the unknown apart and see if it fit's, but I'm kinda guessing it won't. I just hate to tear it apart since it seems like a good unit and is part of a fully connected system with fluid in it.
So let's say the plunger will fit. Would you guy's trust it to a clean up and reinstall. Or should I maybe go for a mikes,,or even nos rebuild kit. I guess I could try to just clean up my original too. Please advise. Thanks
So I have another MC off of another bike. Unknown year. It's reservoir is a lot taller than mine. So I'm guessing it's from a dual disc set up. The caliper and hose do however look identical to my 72.
So on my 72, on the bottom, it is marked 5/8. On the unknown, it is marked 11/16. Is this the bore diameter?? I guess I could pull the unknown apart and see if it fit's, but I'm kinda guessing it won't. I just hate to tear it apart since it seems like a good unit and is part of a fully connected system with fluid in it.
So let's say the plunger will fit. Would you guy's trust it to a clean up and reinstall. Or should I maybe go for a mikes,,or even nos rebuild kit. I guess I could try to just clean up my original too. Please advise. Thanks