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Carb Tuning tips
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Carb Tuning tips
Well I have my carbs stripped and I'm in the process of dip one a day. I'm runnig stock airbox with a K&N and a Vance&Hines 4-1. Any input as to clip position, and initial screw positions?Tags: None
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Is this on a motorcycle? Really, just a stock airbox and a pipe the jetting required won't be too far from stock, maybe a size or two bigger mains, maybe a slightly different clip position. But what you need to do is run it, go through the plug chops and get it right for yourself.Last edited by tkent02; 06-13-2009, 12:53 PM.
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crapwacker
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crapwacker
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crapwacker
I was wondering if anyone has suggestions as to what size main and pilot jets I should acquire to have on hand for messing around with.
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I think that the generally accepted position is to go up 5 or 6 sizes on the main and raise the needle (lower the clip) one notch.
Screw settings will be somewhere between 3/4 and 1 for the fuel, 1.5 to 2 for air.
Remember that these are only guesses for starting points, read your plugs to see what your engine wants.
.sigpic
mine: 2000 Honda GoldWing GL1500SE and 1980 GS850G'K' "Junior"
hers: 1982 GS850GL - "Angel" and 1969 Suzuki T250 Scrambler
#1 son: 1986 Yamaha Venture Royale 1300 and 1982 GS650GL "Rat Bagger"
#2 son: 1980 GS1000G
Family Portrait
Siblings and Spouses
Mom's first ride
Want a copy of my valve adjust spreadsheet for your 2-valve per cylinder engine? Send me an e-mail request (not a PM)
(Click on my username in the upper-left corner for e-mail info.)
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Originally posted by Steve View Post
I think that the generally accepted position is to go up 5 or 6 sizes on the main and raise the needle (lower the clip) one notch.
He only has a pipe.
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crapwacker
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Originally posted by tkent02 View PostSteve, isn't that about what you need for pipes AND pods?
He only has a pipe.
Oh, well, back to the guessing game. Probably 2 or 3 sizes on the jets, personally, I would probably do 3. My son's 850 has a pipe and stock airbox (with K&N insert) and has mains two sizes larger, and it's doing well.
.sigpic
mine: 2000 Honda GoldWing GL1500SE and 1980 GS850G'K' "Junior"
hers: 1982 GS850GL - "Angel" and 1969 Suzuki T250 Scrambler
#1 son: 1986 Yamaha Venture Royale 1300 and 1982 GS650GL "Rat Bagger"
#2 son: 1980 GS1000G
Family Portrait
Siblings and Spouses
Mom's first ride
Want a copy of my valve adjust spreadsheet for your 2-valve per cylinder engine? Send me an e-mail request (not a PM)
(Click on my username in the upper-left corner for e-mail info.)
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