1976 KZ400 D3 Restore Project

  • Jack_Mills
  • Topic Author
  • Offline
  • Sustaining Member
More
13 Mar 2018 04:24 #780153 by Jack_Mills
Replied by Jack_Mills on topic 1976 KZ400 D3 Restore Project
Haha ^^ I had a big wheel as a kid, funny post :)

So I got some more done on my 76 rebuild. Gonna work on the motor a bit today, my fingers are raw from polishing, but thats how it goes I guess!

74 kz400 D1
75 kz400 D2
75 kz400 D2
75 kz400 D2
76 kz400 D3
76 kz400 D3
77 kz400 A1
78 kz400 B1
80 xl80s
81 kz440 B2
81 GL1100
81 xl80s
81 xr80
96 K1100LT
18 HAWK250
Thanks goes out to all folks who share their great knowledge teaching others about classic metric motorcycles.
Attachments:

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

  • Scirocco
  • Offline
  • Premium Member
  • Never change a running system
More
19 Mar 2018 16:20 - 19 Mar 2018 16:21 #780470 by Scirocco
Replied by Scirocco on topic 1976 KZ400 D3 Restore Project
Hello Jack

Here some pics for your valve maintenance.
Tools you need




Check the valve shaft for damages like scratches, dents, pitting or other stupid things the PO does.





If you seen things like this buy new valves.
Last edit: 19 Mar 2018 16:21 by Scirocco.
The following user(s) said Thank You: Jack_Mills

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

  • Jack_Mills
  • Topic Author
  • Offline
  • Sustaining Member
More
19 Mar 2018 16:26 #780472 by Jack_Mills
Replied by Jack_Mills on topic 1976 KZ400 D3 Restore Project
I have a feeling Im going to need new valves...thanks for the info, I appreciate it greatly.

74 kz400 D1
75 kz400 D2
75 kz400 D2
75 kz400 D2
76 kz400 D3
76 kz400 D3
77 kz400 A1
78 kz400 B1
80 xl80s
81 kz440 B2
81 GL1100
81 xl80s
81 xr80
96 K1100LT
18 HAWK250
Thanks goes out to all folks who share their great knowledge teaching others about classic metric motorcycles.
Attachments:

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

  • Scirocco
  • Offline
  • Premium Member
  • Never change a running system
More
19 Mar 2018 16:30 #780473 by Scirocco
Replied by Scirocco on topic 1976 KZ400 D3 Restore Project
If your valve shafts looking good go to the next step, valve stem diameter (min. 6,90 mm)




if out of spec bring it to the old metal recycling
If not next step...
Attachments:

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

  • Scirocco
  • Offline
  • Premium Member
  • Never change a running system
More
19 Mar 2018 16:38 #780475 by Scirocco
Replied by Scirocco on topic 1976 KZ400 D3 Restore Project
Check the valve stem bend, (max. 0,05 mm), one turn around and shift to different shaft position.





if ok, next step...
Attachments:

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

  • Scirocco
  • Offline
  • Premium Member
  • Never change a running system
More
19 Mar 2018 16:44 #780476 by Scirocco
Replied by Scirocco on topic 1976 KZ400 D3 Restore Project
Remove the carbon




Attachments:

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

  • Scirocco
  • Offline
  • Premium Member
  • Never change a running system
More
19 Mar 2018 17:00 #780477 by Scirocco
Replied by Scirocco on topic 1976 KZ400 D3 Restore Project
and some more pics





Took me 5 minutes of work for one valve rough cleaning without mirror polishing i prefer.
The following user(s) said Thank You: Jack_Mills

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

  • Jack_Mills
  • Topic Author
  • Offline
  • Sustaining Member
More
19 Mar 2018 17:47 #780478 by Jack_Mills
Replied by Jack_Mills on topic 1976 KZ400 D3 Restore Project
No eBay APP ID and/or Cert ID defined in Kunena configurationIn all my searching and digging and learning about my kz 400s, Ive never seen this front fairing on any other small kz...it looks like the chips/1000 front fairing, but it says it fits a 400? Aftermarket? Anyone with any input?



Thanks :)

74 kz400 D1
75 kz400 D2
75 kz400 D2
75 kz400 D2
76 kz400 D3
76 kz400 D3
77 kz400 A1
78 kz400 B1
80 xl80s
81 kz440 B2
81 GL1100
81 xl80s
81 xr80
96 K1100LT
18 HAWK250
Thanks goes out to all folks who share their great knowledge teaching others about classic metric motorcycles.

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

  • Scirocco
  • Offline
  • Premium Member
  • Never change a running system
More
19 Mar 2018 17:57 #780479 by Scirocco
Replied by Scirocco on topic 1976 KZ400 D3 Restore Project
Why you want to buy new. You donĀ“t know how bad or good your valves are.
The valve tools, (removal/install), you need are available on Amazon or evil-bay.

Valve spring compressor



Valve seal pliers




Valve shaft seal pusher



and always use a condom for the new valve seals.

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

  • Scirocco
  • Offline
  • Premium Member
  • Never change a running system
More
19 Mar 2018 18:04 #780480 by Scirocco
Attachments:

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

  • Jack_Mills
  • Topic Author
  • Offline
  • Sustaining Member
More
19 Mar 2018 18:43 #780484 by Jack_Mills
Replied by Jack_Mills on topic 1976 KZ400 D3 Restore Project
I took the saddle bags and front fairing from my 77a1 and put them on the 75. I just bought another set of oem bags for the 77 (which is gonna be the next build) after I get this 76 done. The 75 should be done in a few weeks, once the guys are home from bike week, they can concentrate on helping me finish the bodywork and paint, etc. The 76 that Im working on now, is not getting a front fairing or bags, just plain jane, with some cool illusion green powder on some parts and a slick paint job. I do know that this 76 leaked like a son of bish, so at very minimum the value guide seals must be replaced. I hope the valves are good enough in spec that I dont have to replace them, but given that most of these early 400s leak like crazy, I should know how to fix, replace and tune them, so I can do the job myself moving forward. I really appreciate the time you guys give lending out valuable info, glad this site is around. :)

74 kz400 D1
75 kz400 D2
75 kz400 D2
75 kz400 D2
76 kz400 D3
76 kz400 D3
77 kz400 A1
78 kz400 B1
80 xl80s
81 kz440 B2
81 GL1100
81 xl80s
81 xr80
96 K1100LT
18 HAWK250
Thanks goes out to all folks who share their great knowledge teaching others about classic metric motorcycles.
Attachments:

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

  • Jack_Mills
  • Topic Author
  • Offline
  • Sustaining Member
More
19 Mar 2018 18:49 #780487 by Jack_Mills
Replied by Jack_Mills on topic 1976 KZ400 D3 Restore Project
Where at in Germany are you located? I have friends in Heinsburg (Ive djed at Himmerich a bunch of times) also in Cologne , Berlin, Frankfurt, Aachen, also Freiburg (the water streams in brick down the streets is very cool there).

In regards to the picture, that a1 or a2 is super clean! I just wish Kawi chose a different color, that brownish orange is an eye sore :O hahaha

74 kz400 D1
75 kz400 D2
75 kz400 D2
75 kz400 D2
76 kz400 D3
76 kz400 D3
77 kz400 A1
78 kz400 B1
80 xl80s
81 kz440 B2
81 GL1100
81 xl80s
81 xr80
96 K1100LT
18 HAWK250
Thanks goes out to all folks who share their great knowledge teaching others about classic metric motorcycles.

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

Powered by Kunena Forum