At steady 65mph what fuel circuit am I using?

[andmoon]

I don't think I am past 1/4 turn of the throttle.
Am I on the pilot jet or on the needles?

83 850g.
Slight surge at constant speed above 3K rpm.
Great under load and very slight popping on decel.
I think I am lean but not sure if it is the pilot jet or needle.

[tkent02]

Mostly pilots, probably.

[Guest]

I don't think I am past 1/4 turn of the throttle.
Am I on the pilot jet or on the needles?

83 850g.
Slight surge at constant speed above 3K rpm.
Great under load and very slight popping on decel.
I think I am lean but not sure if it is the pilot jet or needle.

Is your exhaust system sealed?

[Guest]

Mostly pilots, probably.

I would think a little of both

[Guest]

1 part pilot circuit plus 2 parts needle circuit shaken not stirred.
Anything over idle is mostly needle until you hit 3/4 throttle and up is main.

[49er]

1 part pilot circuit plus 2 parts needle circuit shaken not stirred.
Anything over idle is mostly needle until you hit 3/4 throttle and up is main.

Not quite true , Mr Bond. I vote at 50/50 too. But it depends on the state of tune of the engine. Lower CR's and poorly timed engines could equate to 1/3 to 2/3 values as you have hinted at.

[trippivot]

you are running on a combo of 2 circuits

the bypass circuit (fueled by the pilot jet and pilot air bleed)
beginning of the needle jet/jet needle and main emulsion tube

[andmoon]

Raise the needle or go up one size on pilot jet?

Bike runs great up to ~ 3000 rpms and under load even if it is slight.
Worst when holding steady speed on very slight decline. No issues on inclines.

Valves synced, carbs synced.
air screws out 3 turns.

[drhach]

Are you running a stock intake and exhaust? You really shouldn't need to increase any of your internal carb component sizes if you are.

[andmoon]

Are you running a stock intake and exhaust? You really shouldn't need to increase any of your internal carb component sizes if you are.

Bike came to me w/ aftermarket mufflers, stock intake and a really messed up dynojet jet kit installed VERY wrong.

I have stock jets and needles back in.

I have a feeling the free flow exhaust may be making the bike lean.

[Guest]

If you have a dynojet kit install it correctly.

[andmoon]

fixed!

raised the needles 2 notches.

I think the PO just blindly put in the largest jets and needles from some dynojet kit. Not sure if the kit is even for the GS 850.

I think I have it back to stock minus the needles. Pics of the stock needles I've seen didn't show the stocks as having slots for raising and lowering the needles. The needles in my bike has 6 or 7 slots.

Gracias all

[Guest]

fixed!

raised the needles 2 notches.

I think the PO just blindly put in the largest jets and needles from some dynojet kit. Not sure if the kit is even for the GS 850.

I think I have it back to stock minus the needles. Pics of the stock needles I've seen didn't show the stocks as having slots for raising and lowering the needles. The needles in my bike has 6 or 7 slots.

Gracias all

Stock needles in my GS didnt have notches either.

Glad to know you got it corrected with the needles, just as many suspected.

[Steve]

... air screws out 3 turns.

Just for the record, you don't have "air" screws. They are "idle mixture adjustment screws".

.