Valve cover

  • Stillridinum
  • Stillridinum's Avatar Topic Author
  • Offline
  • User
  • Posts: 9
  • Thanks: 0

Valve cover

18 Apr 2020 08:28
#823592
Hello!
New to the forum but been around bikes all my life. Recently picked up a 1982 kz1000 that needs some work. I found a powder coated valve cover on eBay and ordered APE block off plates from Z1.
Heres the question, can I install the block off plates without installing the reed valves? The reason I ask is I hear it is sometimes difficult to remove the reed valve without damaging them.
Any help will be appreciated. Thanks
1982 kz1000 LTD +6” arm from PDM
1980kz440
1998 flsts

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

  • Nessism
  • Nessism's Avatar
  • Offline
  • Sustaining Member
  • Posts: 7536
  • Thanks: 2896

Re: Valve cover

18 Apr 2020 09:46
#823598
The whole idea of the block off plates is to disable the air injection system and clean up the plumbing. I don't think it matters if the reed valves are present or not at that point.
The following user(s) said Thank You: Stillridinum

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

  • TexasKZ
  • TexasKZ's Avatar
  • Offline
  • Platinum Member
  • Posts: 7699
  • Thanks: 2326

Re: Valve cover

18 Apr 2020 20:11 - 18 Apr 2020 20:16
#823638
I think the reed blocks have to stay, or the block off plates will not seal.

If the injection ports are blocked with grub screws, then is just a matter of aesthetics.
1982 KZ1000 LTD parts donor
1981 KZ1000 LTD awaiting resurrection
2000 ZRX1100 not ridden enough

www.kzrider.com/11-projects/620336-anoth...uild-thread?start=24
Last edit: 18 Apr 2020 20:16 by TexasKZ.
The following user(s) said Thank You: Stillridinum

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

  • kz-recruit
  • kz-recruit's Avatar
  • Offline
  • User
  • Posts: 20
  • Thanks: 3

Re: Valve cover

22 Apr 2020 05:43
#823898
If you don't want to use the reed valves pick up some gasket material and cut yourself a gasket. Should work the same
91 KZ1000P
05 S40

The following user(s) said Thank You: loudhvx, Stillridinum

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

  • loudhvx
  • loudhvx's Avatar
  • Offline
  • KZr Legend
  • Posts: 10864
  • Thanks: 1615

Re: Valve cover

24 Apr 2020 11:39
#824151
I'm not sure on the 1000, but some models use a reed cage with an integrated rubber seal. These are the ones that get stuck in place and can break when you remove them. That seal stops air from getting in so it's best to leave the whole thing in place.

But if you have them out, then all you need to do is make a gasket, like Kz-recruit said, to seal the reed cover to the valve cover. I would cutout a paper gasket, but if the surface is smooth, a little RTV might get you by. The air-system just goes into the exhaust so you don't have to worry about RTV getting into the engine.

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

  • Stillridinum
  • Stillridinum's Avatar Topic Author
  • Offline
  • User
  • Posts: 9
  • Thanks: 0

Re: Valve cover

25 Apr 2020 13:00
#824252
Thanks to all for the info!!
1982 kz1000 LTD +6” arm from PDM
1980kz440
1998 flsts

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

Powered by Kunena Forum