Breather cover - a big empty hole?

  • Shdwdrgn
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Breather cover - a big empty hole?

22 Aug 2016 19:39
#739560
1981 KZ1000 -- The top of the engine has this breather cover, but it basically seems like an empty hole under it. Is there supposed to be some kind of filter in there? It's just odd, it seems like wasted space.
1981 KZ1000-JK1
She's a beautiful mess, and I've made her all mine

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  • SWest
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Re: Breather cover - a big empty hole?

22 Aug 2016 19:54
#739562
Top of the head or cases?
Steve
Z1b1000 1975 Z1b
kzrider.com/forum/11-projects/598262-kz-...-will-it-live#672882
kzrider.com/forum/2-engine/597654-poser?start=240#704229

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  • missionkz
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Re: Breather cover - a big empty hole?

22 Aug 2016 20:04
#739563
Shdwdrgn wrote: 1981 KZ1000 -- The top of the engine has this breather cover, but it basically seems like an empty hole under it. Is there supposed to be some kind of filter in there? It's just odd, it seems like wasted space.
Reed valves?
Bruce
1977 KZ1000A1
2016 Triumph T120 Bonneville
Far North East Metro Denver Colorado

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Re: Breather cover - a big empty hole?

22 Aug 2016 20:34
#739564
Probably the same as my KZ650 - just an empty cavity under the cover. Ed
1977 KZ650-C1 Original Owner - Stock (with additional invisible FIAMM horn)

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Re: Breather cover - a big empty hole?

22 Aug 2016 21:10
#739570
This is on top of the case, not the head. The cover has a hole for a hose which I think leads to the carbs, and there's a single bolt down the center holding the cover in place.
1981 KZ1000-JK1
She's a beautiful mess, and I've made her all mine

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Re: Breather cover - a big empty hole?

22 Aug 2016 21:26 - 22 Aug 2016 21:27
#739572
Are you talking about the PCV, oil separator assembly?
Bruce
1977 KZ1000A1
2016 Triumph T120 Bonneville
Far North East Metro Denver Colorado
Last edit: 22 Aug 2016 21:27 by missionkz.

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Re: Breather cover - a big empty hole?

22 Aug 2016 21:54
#739574
This cover (14070), on the top side of the crankcase, and the hole that it covers.
[img
1981 KZ1000-JK1
She's a beautiful mess, and I've made her all mine

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Re: Breather cover - a big empty hole?

22 Aug 2016 22:18
#739575
Ok. I think if you had a service manual it would explain that whole thing.
Bruce
1977 KZ1000A1
2016 Triumph T120 Bonneville
Far North East Metro Denver Colorado

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  • TexasKZ
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Re: Breather cover - a big empty hole?

23 Aug 2016 05:05
#739589
Nothing in it. No need for a filter since it is connected to the air box. It's purpose is to let any oil drop out of the crankcase blowby and allow it to return to the crankcase through the drain hole. That way the air that makes it to the air box will have far less oil in it.
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

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Re: Breather cover - a big empty hole?

23 Aug 2016 05:26 - 23 Aug 2016 05:42
#739591
missionkz wrote: Ok. I think if you had a service manual it would explain that whole thing.
Finding specifics about the thing isn't as simple as it would seem. The Kawasaki service manual shows how to remove & re-install the breather cover, but that's about it. the info might be hidden somewhere, but I didn't see it. Lacking that, the parts diagrams & eebbaayy photos can be helpful for stuff like this, just to see what's what, then figure it out using a set of eyeballs. :)
1981 KZ650 Competition Sports and Road
Last edit: 23 Aug 2016 05:42 by martin_csr.

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  • Shdwdrgn
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Re: Breather cover - a big empty hole?

23 Aug 2016 05:41
#739592
Yeah, that's the thing... the parts diagrams don't show anything in there, and there was nothing in the three cases I have here were all empty, it just seemed strange that there was this empty hole. Every other spot on the engine, if there's a recess, something goes in it. Guess I'm just over-thinking it.
1981 KZ1000-JK1
She's a beautiful mess, and I've made her all mine

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Re: Breather cover - a big empty hole?

23 Aug 2016 05:43
#739595
Yes, it's just a vent. The diagrams in this case aren't much help, but eebbaayy photos should shed some light on what's under the cover.
1981 KZ650 Competition Sports and Road

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