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KZ1000 BS34s not right

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18 Aug 2023 12:00 #888459 by Wookie58
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12 Sep 2023 15:39 #889306 by OkieZ1000
Replied by OkieZ1000 on topic KZ1000 BS34s not right
I'm rocking a new set of plunger seals from Zed1015.  Really evened things out, but unfortunately,  it appears I have something mechanically wrong on #4 causing it to oil down that cylinder. 

I've  pulled the head, checked the valve guides,  installed new valve seals, performed a light valve lap to ensure a good seal.

Can't think of much else except possibly a broken ring that would cause it. 

 
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  • howardhb
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13 Sep 2023 03:49 - 14 Sep 2023 01:38 #889329 by howardhb
Replied by howardhb on topic KZ1000 BS34s not right
Definately something amis there!

The oil control rings are thin, and quite flimsy, compared to the compression rings, so
the "wavy" expander ring ends must "butt" together, in order to apply the correct uniform outward pressure on the rings.

See pic below.

 

Also, pay particulare attention to the ring gaps, they should not be placed above eachother.

See pic below:



H.

'81 GPz 550 D1
'81 GPz 1100 B1 ELR "Tribute" www.kzrider.com/11-projects/617040-1981-...-rstomod-elr-tribute
'82 Yamaha YB100 Fizzie
'79 Suzuki GT200 X5 TWO STROKE TWIN - SMOKER!
Last edit: 14 Sep 2023 01:38 by howardhb.
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