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New Intake Valve 23 Jul 2021 11:39 #852369

  • Rick H.
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I decided now would be a good time to increase the intake valve size on my KZ-1000 and ordered new ones.  They are coming in one at a time though.  Here is the first one.  What do you think, will it be big enough?    Rick H.
Rick H.

1977 Kawasaki KZ-1000A1
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Last edit: by Rick H..

New Intake Valve 23 Jul 2021 13:45 #852376

  • Mikaw
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I think your good on the head size but that stem length is really gonna challenge your ability to lash it correctly! 

At one point in time I had a valve out of a locomotive engine. It had about a 5” head diameter. It was a cool coffee table conversation starter. 
1976 KZ 900 A4 kzrider.com/forum/11-projects/613548-1976-kz-900-a4
1976 KZ 900 B1 LTD
1978 KZ 1000 B2 LTD
Kowledge Speaks, But Wisdom Listens.
Jimi Hendrix.

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New Intake Valve 23 Jul 2021 15:16 #852382

  • zed1015
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Probably best used with reduced base circle cams.

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New Intake Valve 23 Jul 2021 15:41 #852383

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I think if you whittle it down a bit, she'll drop right in.  

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New Intake Valve 23 Jul 2021 16:20 #852385

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....she'll drop right in.  


Drop right in to the cylinder? Is that one of those fancy pistons with a really short skirt?
'78 Z1-R in blue, '78 Z1-R in black, '78 Z1-R in pieces
'95 GPZ1100 (sold) , '00 ZRX1100

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New Intake Valve 23 Jul 2021 16:42 #852386

  • 750 R1
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....she'll drop right in.  


Drop right in to the cylinder? Is that one of those fancy pistons with a really short skirt?

 I like "really short skirts".....

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Last edit: by 750 R1.

New Intake Valve 23 Jul 2021 18:20 #852397

  • urankjj
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You would obviously have to use a lot more assembly lube. 

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