KZ650B front sprocket

  • BCKZ
  • BCKZ's Avatar Topic Author
  • Offline
  • User
  • Posts: 8
  • Thanks: 0

KZ650B front sprocket

29 Jan 2020 06:39
#818159
Just replacing sprockets & chain on KZ650B 1978. The front sprocket coming off has a hole drilled for the tab washer to fit into, the new front sprocket has no hole. Whats the usual fix? I've tried drilling the new front sprocket to accept the washer but my drills ain't doing it.

Please Log in or Create an account to join the conversation.

  • 650ed
  • 650ed's Avatar
  • Offline
  • User
  • Posts: 15343
  • Thanks: 2829

Re: KZ650B front sprocket

29 Jan 2020 07:43
#818163
Use a genuine Kawasaki sprocket - it has the hole. Ed
1977 KZ650-C1 Original Owner - Stock (with additional invisible FIAMM horn)
The following user(s) said Thank You: BCKZ

Please Log in or Create an account to join the conversation.

  • martin_csr
  • martin_csr's Avatar
  • Offline
  • User
  • Posts: 8019
  • Thanks: 1645

Re: KZ650B front sprocket

29 Jan 2020 08:09
#818164
Could he switch to a splined washer that you're supposed to be bend over one side of the engine sprocket nut?
1981 KZ650 Competition Sports and Road
The following user(s) said Thank You: BCKZ

Please Log in or Create an account to join the conversation.

  • KZB2 650
  • KZB2 650's Avatar
  • Offline
  • User
  • Posts: 1475
  • Thanks: 265

Re: KZ650B front sprocket

29 Jan 2020 10:46
#818174
A few years ago this was talked over here loctite was one thing but that would worry me, ..... I thought of the splined washer then too Martin but since the sprocket is flush with the shaft the splines would not hook up.......... I ended up buying a Sunstar over Ebay with the hole so I could stop worrying about it.
1978 KZ650 b-2
700cc Wiseco kit 10 to 1.
1980 KZ750 cam, ape springs, stock clutch/ Barnett springs.
Vance and Hines Header w/ comp baffle and Ape pods, Dyna S and green coils, copper wires.
29MM smooth bores W/ 17.5 pilots, 0-6s and 117.5 main
16/42 gearing X ring chain and alum rear JT sprocket.
The following user(s) said Thank You: BCKZ

Please Log in or Create an account to join the conversation.

  • rangeroy
  • rangeroy's Avatar
  • Offline
  • User
  • Posts: 45
  • Thanks: 21

Re: KZ650B front sprocket

29 Jan 2020 11:24
#818177
use a splined washer, when you bolt it up its slightly offset to match with the bolt holes, the sprocket floats on the shaft but its no problem
1977 z650

Attachments:

The following user(s) said Thank You: BCKZ

Please Log in or Create an account to join the conversation.

  • 650ed
  • 650ed's Avatar
  • Offline
  • User
  • Posts: 15343
  • Thanks: 2829

Re: KZ650B front sprocket

29 Jan 2020 12:44 - 29 Jan 2020 12:51
#818185
rangeroy wrote: use a splined washer, when you bolt it up its slightly offset to match with the bolt holes, the sprocket floats on the shaft but its no problem

He has a KZ650. The KZ650 countersprocket setup is different than the photo you posted. Below is a KZ650 countersprocket. Notice the end of the shaft is threaded with a nut on it. Ed

1977 KZ650-C1 Original Owner - Stock (with additional invisible FIAMM horn)

Attachments:

Last edit: 29 Jan 2020 12:51 by 650ed.
The following user(s) said Thank You: BCKZ

Please Log in or Create an account to join the conversation.

  • baldy110
  • baldy110's Avatar
  • Offline
  • User
  • Posts: 2272
  • Thanks: 512

Re: KZ650B front sprocket

29 Jan 2020 15:10
#818192
Use blue locktite on the nut. I never had one come off on any of the dozens of bikes I've owned and ridden. Don't overthink it.
The following user(s) said Thank You: Scirocco, BCKZ

Please Log in or Create an account to join the conversation.

  • BCKZ
  • BCKZ's Avatar Topic Author
  • Offline
  • User
  • Posts: 8
  • Thanks: 0

Re: KZ650B front sprocket

31 Jan 2020 06:46
#818291
All sorted good to have friends with the right tools to drill it!

Please Log in or Create an account to join the conversation.

  • rangeroy
  • rangeroy's Avatar
  • Offline
  • User
  • Posts: 45
  • Thanks: 21

Re: KZ650B front sprocket

31 Jan 2020 11:33
#818309
glad you got sorted, the pic/post I put up is a z650 (mine) but its got a 6spd gearbox fitted & I forgot about the output shaft been different :-( sorry for any confusion
1977 z650
The following user(s) said Thank You: BCKZ

Please Log in or Create an account to join the conversation.

  • bluej58
  • bluej58's Avatar
  • Offline
  • Sustaining Member
  • The chrome don't get you home
  • Posts: 2481
  • Thanks: 511

Re: KZ650B front sprocket

31 Jan 2020 21:55
#818326
I use blue locktite too.
78 KZ1000 A2A

Please Log in or Create an account to join the conversation.

  • BCKZ
  • BCKZ's Avatar Topic Author
  • Offline
  • User
  • Posts: 8
  • Thanks: 0

Re: KZ650B front sprocket

01 Feb 2020 01:17
#818333
No worries thanks for the input, all sorted.:) :)

Please Log in or Create an account to join the conversation.

Powered by Kunena Forum