- Posts: 1802
- Thank you received: 3
Swapping my KZ1000 master cylinder onto my KZ550
- 9am53
- Topic Author
- Offline
- User
- homebrew, and some bbq
Less
More
05 Jun 2009 11:55 #296535
by 9am53
'84 GPz900r
'71 CB350
s289.photobucket.com/albums/ll231/9am53/
Swapping my KZ1000 master cylinder onto my KZ550 was created by 9am53
Hi, my 1983 550 spectre that I am preparing to sell has a siezed master cylinder. I am thinking that instead of spending money on a bike I am not going to use I would buy a new aftermarket master cylinder for my 1982 1000 LTD and put the 1000's cylinder on the 550. Barring any fitting issues, would using a master cylinder from a bigger bike with 2 rotors be a problem for a smaller single rotor bike?
'84 GPz900r
'71 CB350
s289.photobucket.com/albums/ll231/9am53/
Please Log in or Create an account to join the conversation.
- Patton
- Offline
- KZr Legend
Less
More
- Posts: 18640
- Thank you received: 2098
05 Jun 2009 12:12 #296540
by Patton
1973 Z1
KZ900 LTD
Replied by Patton on topic Swapping my KZ1000 master cylinder onto my KZ550
9am53 wrote:
Might consider first disassembling the siezed master cylinder to determine whether it might possibly be resurrected without any new parts.
Good Luck!
Hi, my 1983 550 spectre that I am preparing to sell has a siezed master cylinder. I am thinking that instead of spending money on a bike I am not going to use I would buy a new aftermarket master cylinder for my 1982 1000 LTD and put the 1000's cylinder on the 550. Barring any fitting issues, would using a master cylinder from a bigger bike with 2 rotors be a problem for a smaller single rotor bike?
Might consider first disassembling the siezed master cylinder to determine whether it might possibly be resurrected without any new parts.
Good Luck!
1973 Z1
KZ900 LTD
Please Log in or Create an account to join the conversation.
- gane
- Offline
- User
Less
More
- Posts: 706
- Thank you received: 1
05 Jun 2009 18:02 #296580
by gane
[img][/img] 1977 KZ1000A1
Replied by gane on topic Swapping my KZ1000 master cylinder onto my KZ550
9am, Some thoughts, As I recall, the Specter used high riser muliple bend hbars, and its master was cocked & mounted at an angle. the flat master of your' 1000 may have fluid level probs. 2nd the bore diametres of single/dual brake masters are different. and will probly result in a poor feel at lever and likely be overly sensitive to pressure. luck g
[img][/img] 1977 KZ1000A1
Please Log in or Create an account to join the conversation.
- 9am53
- Topic Author
- Offline
- User
- homebrew, and some bbq
Less
More
- Posts: 1802
- Thank you received: 3
05 Jun 2009 20:22 #296631
by 9am53
'84 GPz900r
'71 CB350
s289.photobucket.com/albums/ll231/9am53/
Replied by 9am53 on topic Swapping my KZ1000 master cylinder onto my KZ550
Well, my 1000 is an LTD, so the bars are similar enough, but you may have a point about the feel of the lever. I suppose I may as well take apart the old master cylinder and see what gives. I tried to change brake fluid because it was really old and had little brake pressure, and once I pumped once I could get no more pressure, and the lever was completely limp...like the piston was jammed and the spring wasn't pushing it out to suck up more fluid.
'84 GPz900r
'71 CB350
s289.photobucket.com/albums/ll231/9am53/
Please Log in or Create an account to join the conversation.
- 9am53
- Topic Author
- Offline
- User
- homebrew, and some bbq
Less
More
- Posts: 1802
- Thank you received: 3
26 Jun 2009 05:12 #302182
by 9am53
'84 GPz900r
'71 CB350
s289.photobucket.com/albums/ll231/9am53/
Replied by 9am53 on topic Swapping my KZ1000 master cylinder onto my KZ550
Just an update...which I could have put up a week ago, but whatever...
PATTON, thanks for planting the seed of wise frugality in my head, I took the master apart and it was surely never cleaned before. There was so much crap in there that the piston was not being pushed back out after brake actuation. I cleaned the bugger out and changed fluid, and it works great! It cost me a total of 45 minutes, and no money, and since I fixed the brake the bike sold yesterday.
PATTON, thanks for planting the seed of wise frugality in my head, I took the master apart and it was surely never cleaned before. There was so much crap in there that the piston was not being pushed back out after brake actuation. I cleaned the bugger out and changed fluid, and it works great! It cost me a total of 45 minutes, and no money, and since I fixed the brake the bike sold yesterday.
'84 GPz900r
'71 CB350
s289.photobucket.com/albums/ll231/9am53/
Please Log in or Create an account to join the conversation.