Topic: Which master cylinder do I have please??

[tmac]

Gentlemen please help: I ordered a master cylinder rebuild kit for a 78 750K. I know I ordered correctly. The new parts are smaller in diameter. The new plunger is 9/16 & the one I removed is 11/16. My question/s = Did I receive the wrong part or is this master cylinder off a different year cb?Just wanna know which rebuild kit I should order so I can go for a blast & also who might want this new kit I cant use?? Thank You Kindly & Have a safe ride !!!

[scottly]

The sohc Ks used 14mm pistons. An 11/16" is relatively huge, and will result in a rock-hard brake lever if used with a single K8 caliper. It must have come from a dual disk model...

[tmac]

Thank You very much, What do u think is my best option? Try to find a 78k master cylinder body since I already purchased all the rebuild parts for my year CB. Would u happen to know of any good resources I might be able to try to find one ??  Thanks & have a nice day !!

[xnoahx]

You could try the one from Slingshot cycles

[tmac]

New one ordered from slingshot, great idea. Thanks a lot !!!