Jpwhit1
XS650 Enthusiast
I picked up a 71 cb750 and was wondering if the master cylinder wil work on my 78 xs. This one is in much better shape aesthetically.
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It depends on the bore size. Your 78 has a 14 mm bore size. It's a bit large but works. A 10 or 11 mm bore will work better.
What bore is the Honda master cylinder?
Leo
What bore is the Honda master cylinder?
Leo
Jpwhit1
XS650 Enthusiast
My apologies for lack of knowledge.. No idea what bore size is. I see a lot of rebuild kits but nothing with original specs on this info. I see a few articles list it as having a 5/8 piston..??
Is there something I can mic?
Is there something I can mic?
Generally they are marked on the side, by the mount, next to the bar. My 75 it said 5/8. This is an SAE number but equals 16 mm.
Yours may be marked either way or not at all.
You can take it apart and measure the actual bore size.
Leo
Yours may be marked either way or not at all.
You can take it apart and measure the actual bore size.
Leo
