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Turn air screw ???
#483320 03/14/2012 8:08 PM
Joined: Mar 2012
Posts: 13
bistro Offline OP
Complete Newb
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Complete Newb
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If it coughs back through carb, turn air screw ???up or down??? If it backfires on deceleration, turn air screw ???up or down????


05 Mulberry America, Freak, 45/145, one shim stock needle, 2 1/2 turns, 2 baffles drilled 3/4" holes, 3rd baffle removed, 18T/42T DID x-ring, engine mount OPG & oil temp, Metzeler 880s, EBS rotors, HH pads, low profile seat
Re: Turn air screw ???
bistro #483321 03/14/2012 8:50 PM
Joined: May 2007
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Worn Saddle
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Worn Saddle
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Out or down for more fuel, in or up for less. Out to quell popping on deceleration. If it was me, though, I'd be checking the vacuum caps for dry rot since you've got that cough going on.


A positive attitude may not solve all your problems, but it will annoy enough people to make it worth the effort. Herm Albright (1876 - 1944)
Re: Turn air screw ???
oldroadie #483322 03/14/2012 9:56 PM
Joined: May 2010
Posts: 5,720
Ryk Offline
Check Pants
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Check Pants
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#1 Those are the symptoms of an air leak.

Re: Turn air screw ???
Ryk #483323 03/14/2012 10:02 PM
Joined: Feb 2008
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Loquacious
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Loquacious
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It's not an air screw.

Re: Turn air screw ???
B02S4 #483324 03/15/2012 5:14 PM
Joined: Mar 2012
Posts: 13
bistro Offline OP
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Excusssse meeeeeee for stating air screw instead of Idle Mixture Screw!!!! Been racing and riding bikes over forty years, and used the vernacular flat tracker version instead of 'formal'.


05 Mulberry America, Freak, 45/145, one shim stock needle, 2 1/2 turns, 2 baffles drilled 3/4" holes, 3rd baffle removed, 18T/42T DID x-ring, engine mount OPG & oil temp, Metzeler 880s, EBS rotors, HH pads, low profile seat
Re: Turn air screw ???
bistro #483325 03/15/2012 8:10 PM
Joined: Feb 2008
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Loquacious
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No worries, all is forgiven...FWIW, I also razz 2T tuners that refer to it as a "fuel" screw...

At least you didn't call it a "dinglehopper"


Re: Turn air screw ???
B02S4 #483326 03/20/2012 2:15 AM
Joined: Jan 2005
Posts: 1,425
Learned Hand
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Learned Hand
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OK, So how many turns till the mix screw falls out? lets say screw all the way in. I cant even remember where mine is any more. im thinking 2 1/4.


Mal: "Y'all see the man hanging out of the spaceship with the really big gun?{ref, Jayne} Man's lookin' to kill some folk. So really, it's his will y'all should worry about thwarting."
Re: Turn air screw ???
beamer #483327 03/20/2012 6:40 AM
Joined: Feb 2007
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Fe Butt
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Fe Butt
Joined: Feb 2007
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it's quite a few but there comes a point when it isn't adjusting anything anymore.


I learned all I need to know about life by killing smart people and eating their brains.
Eat right ,Exercise ,Stay fit, Die Anyway!
Re: Turn air screw ???
The_Dog33 #483328 03/20/2012 8:45 AM
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Loquacious
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The pilot fuel screw only controls 1 of 5 pilot holes; the 4 other pilot jet bypass holes are under the throttle plate (when closed) & are not controlled by the screw.

Re: Turn air screw ???
beamer #483329 03/20/2012 8:48 AM
Joined: May 2007
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Worn Saddle
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Worn Saddle
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Quote:

OK, So how many turns till the mix screw falls out?



You put yourself at risk at more than 4 turns out.


A positive attitude may not solve all your problems, but it will annoy enough people to make it worth the effort. Herm Albright (1876 - 1944)
Re: Turn air screw ???
oldroadie #483330 03/20/2012 10:59 AM
Joined: Jul 2011
Posts: 2,212
Oil Expert
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Oil Expert
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more then three and i move up one size.


2007 Speedmaster and miss it! 2013 T-Bird Storm and Luvin it! Catching a yellow jacket in your shirt at 70 mph can double your vocabulary

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