RS34 carb advice needed.

With the setup Im running...what settings would you run....carb wise RS 34

Im at:

125 main
raised needle 1 in forth spot out of five.
stock jet needle
stock needle jet
stock throttle valve
stock pilot jet

4TheKZ1000 wrote: With the setup Im running...what settings would you run....carb wise RS 34

Im at:

125 main
raised needle 1 in forth spot out of five.
stock needle
stock pilot jet

Last set I put on a 1075 J motor required richer needles. It got an 88CFM street head and GPz11 cams. The plugs would not color up. I ordered the richer needles from Fox Distributing.

LarryC wrote:

4TheKZ1000 wrote: With the setup Im running...what settings would you run....carb wise RS 34

Im at:

125 main
raised needle 1 in forth spot out of five.
stock needle
stock pilot jet

Last set I put on a 1075 J motor required richer needles. It got an 88CFM street head and GPz11
cams. The plugs would not color up. I ordered the richer needles from Fox Distributing.

I also have little color on plugs...I am not at 88cfm I would guess 80cfm....it really liked the needle raised one from center stock position...could raise one more only then maxed. You think 125 mains are enough Larry. Also is running very rich at idle....can smell exhaust is rich.

4TheKZ1000 wrote:

LarryC wrote:

4TheKZ1000 wrote: With the setup Im running...what settings would you run....carb wise RS 34

Im at:

125 main
raised needle 1 in forth spot out of five.
stock needle
stock pilot jet

Last set I put on a 1075 J motor required richer needles. It got an 88CFM street head and GPz11
cams. The plugs would not color up. I ordered the richer needles from Fox Distributing.

I also have little color on plugs...I am not at 88cfm I would guess 80cfm....it really liked the needle raised one from center stock position...could raise one more only then maxed. You think 125 mains are enough Larry. Also is running very rich at idle....can smell exhaust is rich.

Fuel screws can be pretty touchy on them. A little turn is a lot of change. Close them, then open in 1/8 turn and go in small increments gradually. Ride the bike in first gear at 1000 RPM, try to hold steady there, then 1500, then 2000. Adjust pilot screws until it's as smooth as you can make it.

I had a friend do preliminary setup of carbs. I think he missed it with a full turn of pilot mixture screw....the book says 1/8 to 1/4 turn...?

Not sure about 125 mains...to big or little. Anybody running a RS34 engine who would share a setup or advice.

Thanks

125 should be about right. Maybe even a little less. I run them on a 1170 motor and I believe I have 122.5 in there now.