Damn air screws!
- TeK9iNe
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Damn air screws!
14 Sep 2008 11:07 - 14 Sep 2008 11:08
Got my 81 KZ1000 CSR up and running now. I plan on being out on the street tomorow.
Here's the problem... I want to Sync the carbs. Which I can do no problem, I have a good manometer.
But... I'm setting the air screws in my BS34's and I cant hear any change in rpm on the right side of the bike! i can hear the difference on the left side, then when I go over to the right, I cant make out any differences from #3 and #4 screws! i can bog the bike by setting them all the way in, or very far out. but in between, theres no (audible) change in sound.
What should I do? Whats going on? Is the right bank to far below sync from the left? Or something worse
Cheers!:S
Here's the problem... I want to Sync the carbs. Which I can do no problem, I have a good manometer.
But... I'm setting the air screws in my BS34's and I cant hear any change in rpm on the right side of the bike! i can hear the difference on the left side, then when I go over to the right, I cant make out any differences from #3 and #4 screws! i can bog the bike by setting them all the way in, or very far out. but in between, theres no (audible) change in sound.
What should I do? Whats going on? Is the right bank to far below sync from the left? Or something worse
Cheers!:S
Motorcycle Shop Owner/Operator
79 Kawie Z1000 LTD
81 Kawie Z1000 CSR
83 Honda VT750C A
85 Kawie GPZ900 A2
86 Zukie GS1150 EG
93 Yamie XV1100 E
Lucky to have rolled many old bikes through my doors
79 Kawie Z1000 LTD
81 Kawie Z1000 CSR
83 Honda VT750C A
85 Kawie GPZ900 A2
86 Zukie GS1150 EG
93 Yamie XV1100 E
Lucky to have rolled many old bikes through my doors
Last edit: 14 Sep 2008 11:08 by TeK9iNe.
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- wiredgeorge
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Re: Damn air screws!
14 Sep 2008 12:04
Profanity is more or less wasted on inanimate objects. You don't have air screws on your carburetors; they are pilot mixture screws. They control both air and fuel. I suggest you turn them to 1 3/4 turns out from lightly seated. Turn each in turn back and forth about 1/4 turn for max rpm. If you get no change, turn them back to 1 3/4 turns out and don't worry about it.
wiredgeorge Motorcycle Carburetors
Mico TX
www.wgcarbs.com
Too many bikes to list!
Mico TX
www.wgcarbs.com
Too many bikes to list!
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- TeK9iNe
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Re: Damn air screws!
14 Sep 2008 14:16 - 14 Sep 2008 14:28
wiredgeorge wrote:
Ah, very informative! However... Due to my complacency... I forgot to mention that some time ago the PO re-jetted the bike and put a 4-1 Jardine high-flow system on.
The cyclinders will actually flood/bog if the mixture screws arent at least 2 1/2 turns out. Its kind of my starting point... :blush:
...but thanks Wiredgeorge, your a hero!
ALSO... you say "Pilot" Mixture Screws. So this would explain why the bike is a little rough to control with slight/slow ridin' throttle inputs, but anything after about 1/3 throttle is smooth and CRAZY fast!
I'm starting to get this stuff... :laugh:
You don't have air screws on your carburetors; they are pilot mixture screws. They control both air and fuel. I suggest you turn them to 1 3/4 turns out from lightly seated. Turn each in turn back and forth about 1/4 turn for max rpm. If you get no change, turn them back to 1 3/4 turns out and don't worry about it.
Ah, very informative! However... Due to my complacency... I forgot to mention that some time ago the PO re-jetted the bike and put a 4-1 Jardine high-flow system on.
The cyclinders will actually flood/bog if the mixture screws arent at least 2 1/2 turns out. Its kind of my starting point... :blush:
...but thanks Wiredgeorge, your a hero!
ALSO... you say "Pilot" Mixture Screws. So this would explain why the bike is a little rough to control with slight/slow ridin' throttle inputs, but anything after about 1/3 throttle is smooth and CRAZY fast!
I'm starting to get this stuff... :laugh:
Motorcycle Shop Owner/Operator
79 Kawie Z1000 LTD
81 Kawie Z1000 CSR
83 Honda VT750C A
85 Kawie GPZ900 A2
86 Zukie GS1150 EG
93 Yamie XV1100 E
Lucky to have rolled many old bikes through my doors
79 Kawie Z1000 LTD
81 Kawie Z1000 CSR
83 Honda VT750C A
85 Kawie GPZ900 A2
86 Zukie GS1150 EG
93 Yamie XV1100 E
Lucky to have rolled many old bikes through my doors
Last edit: 14 Sep 2008 14:28 by TeK9iNe.
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