harryzx-12
Needs a job
Posts: 3643
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posted April 13, 2002 09:52 AM
Oversized valves for the ZX-12
What is the maximum size valve that can be put in a zx-12 head? Intake and exhaust
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"Life should NOT be a journey to the grave with the intention of arriving safely in an attractive and well preserved body, but rather to skid in sideways- Body thoroughly used up, totally worn out...Screaming "WOO HOO, What a Ride !!!"
  
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anesthesiac12
Novice Class
Posts: 85
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posted April 14, 2002 12:08 PM
I had 1mm oversized valves put in mine. Not possible to go any larger. I just tore the motor down and noticed the valves were accually shining the pistons a little. Ill have to get a photo for ya. Kevin Blais did my head work and i am very happy with it. I wouldnt let anyone touch my head but him...
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anesthesiac12
Novice Class
Posts: 85
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posted April 14, 2002 02:39 PM
Ive got a pic for you. This is with 1mm oversized valves.
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oldkawboy
Needs a job
Posts: 2125
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posted April 16, 2002 08:53 PM
Anesthesiac12,
What brand and material are your oversized valves? A friend is building a 1361 and he is looking for some valve info. Thanks
Dan
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anesthesiac12
Novice Class
Posts: 85
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posted April 16, 2002 09:50 PM
Im not sure what brand off hand, but there stainless. Titanium valves are nice, except very expensive, with little benefit.. The man to talk to is Kevin at Blais cycle. 1-305-654-8114. They are out of miami, these guys are very sharp, and always willing to b.s. about any questions you may have. Nice thing about them is, they dont try to sell you a product, they inform you what they would do, then are willing to give you a fair deal...
Tell him jesse from ny sent ya.....
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oldkawboy
Needs a job
Posts: 2125
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posted April 17, 2002 07:27 PM
Thanks Jesse.
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bbwatercool
Novice Class
Posts: 64
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posted April 28, 2002 08:23 PM
ferrea makes the best valves for motorcycles....
anethesiac12, your valves are touching in the pockets because they are/were not properly prepped before installation...it is a simple fix now that you have it apart and i would be sure to check all the valves to make sure none are bent....
dwayne
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anesthesiac12
Novice Class
Posts: 85
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posted April 29, 2002 07:10 PM
Yes i am aware of my little problem, but when we did this, we felt it was going to be ok, but didnt take a little piston rock into consideration. Was a sort of trail and error experament at the time. I did this back when nothing was yet done to the 12
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