air screw

**Thu May 07, 2009 5:58 pm » Post: #1 » Download Post**

hi i have searced this and found two answers, if you turn air screw clock wise does it richen or lean the mixture, i thorght it richened it up,but im not sure two different posts say two different things Rolling Eyes

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NSR250 MC18

**Thu May 07, 2009 6:03 pm » Post: #2 » Download Post**

o o

Last edited by DifferentStrokes on Mon Sep 28, 2009 5:16 pm; edited 1 time in total

**Thu May 07, 2009 8:01 pm » Post: #3 » Download Post**

thank you for your reply,but there are so many different answers on this ive just read 3 posts that say the opposite,what is right
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NSR250 MC18

**Thu May 07, 2009 8:07 pm » Post: #4 » Download Post**

Its an AIR screw. turning it anti clock wise pulls the screw out allowing more air to pass though the now less blocked passage, leaning the mixture out.
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If I have to take the carbs off once more...

**Thu May 07, 2009 8:08 pm » Post: #5 » Download Post**

o o

Last edited by DifferentStrokes on Mon Sep 28, 2009 5:16 pm; edited 2 times in total

**Thu May 07, 2009 8:10 pm » Post: #6 » Download Post**

I have replied and said your'e wrong. Wink

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If I have to take the carbs off once more...

**Thu May 07, 2009 8:22 pm » Post: #7 » Download Post**

So let me get this right. You're saying letting more air in richens the mixture?

Andy, re-write the tuning section!
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If I have to take the carbs off once more...

**Thu May 07, 2009 8:31 pm » Post: #8 » Download Post**

DifferentStrokes wrote:It's called an air screw but in flows fuel; No

lol, no it doesn't,

For one there is no O ring on the air screw on an NSR so it would piss fuel out if it did have fuel behind it and the intake for the Air screw is open to, you guessed it, air. I dont see any fuel pissing out of that hole either.
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If I have to take the carbs off once more...

**Thu May 07, 2009 8:43 pm » Post: #9 » Download Post**

The pain, make them stop!

Steve is of course totally correct, as is the tuning section, as are the three posts HUNTN1 found.
DifferentStrokes is mistaken.
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Please do not PM me technical questions, if you can't find it on the Forum start a thread

**Thu May 07, 2009 8:49 pm » Post: #10 » Download Post**

Quality!

**Thu May 07, 2009 8:50 pm » Post: #11 » Download Post**

i cant belive there's such a hoo harr about carb air screws!!! ITS & AIR SCREW !!! clock wise less air more fuel anti clock wise more air less fuel !!! after owning over 20 of the dam things & racing them for over ten years i should know & yes i am old !!!

**Thu May 07, 2009 8:50 pm » Post: #12 » Download Post**

o o

Last edited by DifferentStrokes on Mon Sep 28, 2009 5:17 pm; edited 1 time in total

**Thu May 07, 2009 9:35 pm » Post: #13 » Download Post**

o o

Last edited by DifferentStrokes on Mon Sep 28, 2009 5:17 pm; edited 1 time in total

**Thu May 07, 2009 9:39 pm » Post: #14 » Download Post**

Some Kehin carbs do use a fuel screw (Kawasaki ZX9R's for example). However these are fitted with O rings and take fuel via the needle holder.

The NSR kehin is a different animal.
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If I have to take the carbs off once more...

**Thu May 07, 2009 9:43 pm » Post: #15 » Download Post**

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Andy.
NSR-WORLD.COM

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