Valve Clearance Philosophy - Page 3 - Kawasaki ZX-10R.net
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post #21 of 23 Old 09-11-2017, 09:26 AM
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closer to loose.

Thanks for that, I was aiming for 0.20 throughout but what would you suggest for IN and EX numbers to aim for on the looser end? I am working on my 05?

Exhaust 0.17 ∼ 0.22 mm
Inlet 0.15 ∼ 0.24 mm

Thanks for the replies, I realize that they get tighter as they wear. But I am also curious to know of any benefit of being uniform. Let me explain, you got 8 IN valves and 8 EX valves. The question is when setting all IN valves on the looser end for example is there a benefit to making an effort that they are all at the same number. Say you aim for 0.22 on all the IN valves, but you can't get all of them to 0.22, some are at 0.21 and some at 0.23? Your still in specs so your fine, but is there a extra benefit to getting all of them at 0.22 uniform all through the 8 valves and same question for the EX side.
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post #22 of 23 Old 09-11-2017, 09:30 AM
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Thanks for that, I was aiming for 0.20 throughout but what would you suggest for IN and EX numbers to aim for on the looser end? I am working on my 05?

Exhaust 0.17 ∼ 0.22 mm
Inlet 0.15 ∼ 0.24 mm

Thanks for the replies, I realize that they get tighter as they wear. But I am also curious to know of any benefit of being uniform. Let me explain, you got 8 IN valves and 8 EX valves. The question is when setting all IN valves on the looser end for example is there a benefit to making an effort that they are all at the same number. Say you aim for 0.22 on all the IN valves, but you can't get all of them to 0.22, some are at 0.21 and some at 0.23? Your still in specs so your fine, but is there a extra benefit to getting all of them at 0.22 uniform all through the 8 valves and same question for the EX side.
The best is to have them alway equal with each other, and close to the lower limit. Because that way, the valves opens more and you have more air/fuel coming in, and more exhaust gases coming out.

BUT if you do that, you have to measure them once per month aprox haha.

So for street riders, like me, is better to have them close to upper limit, and can ride thousends of miles till next service.

Of course you have to try to have them all at the same number, to have the same valve opening in each cylinder

Regards from Argentina
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post #23 of 23 Old 09-18-2017, 10:27 PM
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In all reality......the actual thickness in question is so marginal that it can be debated to exhaustion......considering we are talking about the thickness of a piece of paper sliced into 3 or 4 thin pieces. get them close and worry about cam tensioner failure or generator failure instead, LOL

2004 ZX10R-few mods here and there......
and even made more Evil by Woolich.
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