Hello Guest User,

Please feel free to have a look around the forum but be aware that as an unregistered guest you can't see all of it and you can't post.

To access these 'Registered Users Only' areas simply register and login.

KZ650c Master Cyl refurb

Need help restoring, building, or finding then try here.

Moderators: KeithZ1R, chrisu, paul doran, Taffus

Message
Author
Bill P
Hardcore
Hardcore
Posts: 1379
Joined: 17th Aug 2015
Location: Derbyshire

KZ650c Master Cyl refurb

#1 PostAuthor: Bill P » Mon May 19, 2025 10:09 am

Morning Gentlemen
could anyone put me in touch with someone who could rebuild me a rear master cylinder for my 78 kz650c
Beer tokens waiting :)

Cheers Bill

User avatar
warren3200gt
Hardcore
Hardcore
Posts: 3004
Joined: 13th Jun 2014
Location: Dartford Kent

Re: KZ650c Master Cyl refurb

#2 PostAuthor: warren3200gt » Mon May 19, 2025 1:11 pm

Bill, they are simple enough to do. The issue you'll have is finding a rear cylinder seal kit!
However luckily the front mc seals are the same. I'd guess single disc b1 front master would be the one for your rear as it's a 1/2 in mc. Double disc seal kits should be the 5/8 size. Might check your rear mc size before ordering a kit.
PUM 488 June 2023
76 Z900A4, 77 Z650B1, 77 KZ650B1, 77 Z1000A1, 82 Z1000J2, ZRX1100R.

Bill P
Hardcore
Hardcore
Posts: 1379
Joined: 17th Aug 2015
Location: Derbyshire

Re: KZ650c Master Cyl refurb

#3 PostAuthor: Bill P » Mon May 19, 2025 7:35 pm

Thanks for reply warren , yes the kit is very elusive but i will give your suggestion a try :up

User avatar
KeithZ1R
Moderator
Posts: 3055
Joined: 15th May 2005
Location: Bury

Re: KZ650c Master Cyl refurb

#4 PostAuthor: KeithZ1R » Tue May 20, 2025 7:21 am

Bill P wrote:Morning Gentlemen
could anyone put me in touch with someone who could rebuild me a rear master cylinder for my 78 kz650c
Beer tokens waiting :)

Cheers Bill


The C models were mostly 14mm bore tourmax do a kit for the FS1E MC and the seals are the same size you just have to carefully transpose them to your piston
Keith
:bop :gom

You can never have too many tools in your life, except the two legged variety

I'm never wrong, once I thought I was but I was
mistaken.

Phil Churchett winner 2013

Bill P
Hardcore
Hardcore
Posts: 1379
Joined: 17th Aug 2015
Location: Derbyshire

Re: KZ650c Master Cyl refurb

#5 PostAuthor: Bill P » Tue May 20, 2025 8:25 am

Thank You for reply Keith , i will look into that and if necessary find someone with delicate fingers not rough shovels like mine :)


Return to “Bike Help”

Who is online

Users browsing this forum: pjc, sockpuppet and 32 guests