- Posts: 31
- Thank you received: 0
New Discs and pads
- Fergie
- Topic Author
- Offline
- User
I measured the calipers and there is a difference. Like they have spread slightly at the toes.
Do I just run it like this and wait for it to bed in?
Hope that all makes sense. See photos below.
Z650-F4 1984 UK Spec
JMC Aluminium swingarm.
Harris 4-1 exhaust.
Please Log in or Create an account to join the conversation.
- otakar
- Offline
- User
74 Z1-A stock
76 KZ-900 Totaly stock vice MAC pipe
77 KZ-1000A stock
78 Z1-R 100%MINT 500 original Mi.
78 Z1-R Yoshi 1103 kit stage 1 cams Yoshi pipe. Etc
79 KZ-1300 (1400)
80 KZ-1300
81 Scratch built GPz1150R
82 KZ1000
Please Log in or Create an account to join the conversation.
- TeK9iNe
- Offline
- User
- What did you do!?!
- Posts: 2440
- Thank you received: 28
They should seat flat at all times.
New or old pads.
Calipers dont really bend... check to make sure bolts are nice and straight, and correct size.
Something is a foot! :laugh:
Motorcycle Shop Owner/Operator
79 Kawie Z1000 LTD
81 Kawie Z1000 CSR
83 Honda VT750C A
85 Kawie GPZ900 A2
86 Zukie GS1150 EG
93 Yamie XV1100 E
Lucky to have rolled many old bikes through my doors
Please Log in or Create an account to join the conversation.
- Fergie
- Topic Author
- Offline
- User
- Posts: 31
- Thank you received: 0
Z650-F4 1984 UK Spec
JMC Aluminium swingarm.
Harris 4-1 exhaust.
Please Log in or Create an account to join the conversation.
- Fergie
- Topic Author
- Offline
- User
- Posts: 31
- Thank you received: 0
There appears to be about 1mm difference between the front edge and the back.
Z650-F4 1984 UK Spec
JMC Aluminium swingarm.
Harris 4-1 exhaust.
Please Log in or Create an account to join the conversation.
- otakar
- Offline
- User
74 Z1-A stock
76 KZ-900 Totaly stock vice MAC pipe
77 KZ-1000A stock
78 Z1-R 100%MINT 500 original Mi.
78 Z1-R Yoshi 1103 kit stage 1 cams Yoshi pipe. Etc
79 KZ-1300 (1400)
80 KZ-1300
81 Scratch built GPz1150R
82 KZ1000
Please Log in or Create an account to join the conversation.
- mark1122
- Offline
- User
- Keep twisting it
- Posts: 5359
- Thank you received: 109
the pistons should move in and out in line with the bore.
try moving the pistons in and out and repeat the measurement to see if the alignment stays the same or differs.
76 KZ, frame gusset work,1200CC.Ported by Larry Cavanaugh, 1.5mm.over intakes, Carron Pipe, ZRX12 rear end, and seat,96zx9 front end.
01 CBR600F4i Track bike.
Cobourg, Ont. Can.
~ ~ ~_@
~ ~ _- \,
~ (k) / (z)
Please Log in or Create an account to join the conversation.
- otakar
- Offline
- User
74 Z1-A stock
76 KZ-900 Totaly stock vice MAC pipe
77 KZ-1000A stock
78 Z1-R 100%MINT 500 original Mi.
78 Z1-R Yoshi 1103 kit stage 1 cams Yoshi pipe. Etc
79 KZ-1300 (1400)
80 KZ-1300
81 Scratch built GPz1150R
82 KZ1000
Please Log in or Create an account to join the conversation.
- mark1122
- Offline
- User
- Keep twisting it
- Posts: 5359
- Thank you received: 109
I think that he only has a single piston, and the caliper jaw is machined in the casting. It should be straight. sometimes corrosion builds up on the jaw and must be removed or mud builds up and has to be removed. I would try to operate the caliper while not mounted to see exactly what it is doing. Just mount the pads and close them onto each other without the disc.
thats along the lines that i was thinking. something(rust?)may be causing the piston to run a scew, if it doesnt measure up correctly(true to bore).
76 KZ, frame gusset work,1200CC.Ported by Larry Cavanaugh, 1.5mm.over intakes, Carron Pipe, ZRX12 rear end, and seat,96zx9 front end.
01 CBR600F4i Track bike.
Cobourg, Ont. Can.
~ ~ ~_@
~ ~ _- \,
~ (k) / (z)
Please Log in or Create an account to join the conversation.
- Fergie
- Topic Author
- Offline
- User
- Posts: 31
- Thank you received: 0
I have carefully taken about 1/2mm from the back side with a dremel tool, refitted the pads and taken it for a run. Much better. A few more miles and I think it will be beded in correctly. Better feel on the lever also.
Z650-F4 1984 UK Spec
JMC Aluminium swingarm.
Harris 4-1 exhaust.
Please Log in or Create an account to join the conversation.
- mark1122
- Offline
- User
- Keep twisting it
- Posts: 5359
- Thank you received: 109
does it seem that the casting is bent outward?
76 KZ, frame gusset work,1200CC.Ported by Larry Cavanaugh, 1.5mm.over intakes, Carron Pipe, ZRX12 rear end, and seat,96zx9 front end.
01 CBR600F4i Track bike.
Cobourg, Ont. Can.
~ ~ ~_@
~ ~ _- \,
~ (k) / (z)
Please Log in or Create an account to join the conversation.
- Fergie
- Topic Author
- Offline
- User
- Posts: 31
- Thank you received: 0
Z650-F4 1984 UK Spec
JMC Aluminium swingarm.
Harris 4-1 exhaust.
Please Log in or Create an account to join the conversation.