Carb Tuning tips

[Guest]

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?

[tkent02]

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.

[rapidray]

Trust me on this one, if you have a 4 into 1 GET a JET KIT!!! Then follow the baseline settings & tune from there. Ray.

[crapwacker]

No kits readily available for the 79. Stage one kits are for the cv series!

[crapwacker]

Oh, it's a gs750L 1979. Info always helps!

[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.

[Steve]

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.

.

[tkent02]

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.

Steve, isn't that about what you need for pipes AND pods?
He only has a pipe.

[crapwacker]

And where is a good place to get jets?

[tkent02]

http://www.z1enterprises.com/catalog.aspx?pid=TOP

[Steve]

Steve, isn't that about what you need for pipes AND pods?
He only has a pipe.

You're right. I saw the "K&N" and didn't notice that it's an insert in the stock box.

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.

.