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Hi , I have just fitted carb rebuild kits to my XS1100SF 79 , but when I fitted the mixture screws the old ones ranged from 2.5 turns out from fully screwed in to 4.5 turns , does anybody know the correct setting as my manual says (DO NOT TOUCH THEM) some use when your fitting new ones. Many thank Bish.
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79 SF -
My manual also says DO NOT TOUCH but then says the factor default is 1 1/4 turns out.Originally posted by Bish View Post1980 XS 1100 Special
Mostly stock & original
Added Yamaha fairing (w/ 8-track!)
Torpedo bags
New paint (still) pending
Stainless brake lines
Tkat forkbrace
Coils from Honda 1000
Previous bikes:
1968(?) 350 Harley Davidson
1977 Yamaha 650 -
Use your sync gauges to achieve the highest vacuum reading on each cylinder. First sync the carbs, then turn the #1 mixture screw in or out to get the highest vacuum reading. There will only be a slight change but you will see it. Repeat for the other 3 mixture screws> Readjust the main idle adjustment knob to keep the idle around 1100 during this process.2H7 (79) owned since '89
3H3 owned since '06
"If it ain't broke, modify it"
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I'll add a good starting point after a rebuild is about 2 turns out.Life is what happens while your planning everything else!
When your work speaks for itself, don't interrupt.
81 XS1100 Special - Humpty Dumpty
80 XS1100 Special - Project Resurrection
Previously owned
93 GSX600F
80 XS1100 Special - Ruby
81 XS1100 Special
81 CB750 C
80 CB750 C
78 XS750Comment
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I just finished a rebuild of the carbs on the same bike and two full turns out to start was perfect.79F with two parts bikes (78E and a 79F). Ran it for the first season all the way through the summer.
more work to do this Spring!Comment
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