Jetting Database - PLEASE ADD YOUR SETTINGS

[byost]

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Bike year & model = 2011 300 Six Days
Temperature (degF) =60
Elevation (feet) =300-900
Main jet = 178
Pilot jet =38
Needle & notch =CEK 3rd Notch
Air screw setting =1.5
Throttle valve/slide =#7

Results:Clean off of the bottom and pulls smoothly to WOT
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I finally got around to going to a smaller Pilot jet and man did this thing ever clean up no more stumble off idle, no more spooge out the pipe, I think it even vibrates less. Now heres my question, my carburetor is marked "AL1 0 ALP" on the side away from the fuel inlet. I know that it is a ASII but, the manual says that it should be marked S66? Could this be a GG part number?

[Die Tante T.]

Bike year & model = 2011 EC300 Nambotin
Temperature (degF) =50-90
Elevation (feet) =800-3000
Main jet = 175
Pilot jet =40
Needle & notch =N1EG / #2
Air screw setting =2
Throttle valve/slide =#7

[Jakobi]

2010 EC Racing Model
S3 250 Race Ported Cylinder
1 x 0.5mm Base Gasket Stack
Piston 0.8mm above exhaust port at BDC
Modified S3 Head (1.25mm Squish / 21cc chamber volume)

20-30C
50-100% RH
300-1000M
42 N3CJ#3 178

Idles all day. Smooth bottom to mid power. Mid to top hit into a very strong top end. Very happy owner.

[Vindicator]

Bike year & model = 2011 EC300 Race
Temperature (degC) =15-20
Elevation = Sea level
Main jet = 180
Pilot jet =38
Needle & notch =N1EG / #2
Air screw setting =2
Throttle valve/slide =#7
Keihin PWK 38

I like the power delivery of the N1EF but it's too rich off idle. Got the N1EG and there was an improvement but had to go down on the pilot jet (previous 40). Good transition off idle into middle range and soft hit when WOT. Still a bit tricky to idle but a bit better than before. Air screw still bares almost no influence on idle, might have to go down again on the pilot jet.
Tried the N3CJ #3, MJ180, PJ40 but too much of a hit when WOT.

[Jakobi]

Originally Posted by Vindicator

Bike year & model = 2011 EC300 Race
Temperature (degC) =15-20
Elevation = Sea level
Main jet = 180
Pilot jet =38
Needle & notch =N1EG / #2
Air screw setting =2
Throttle valve/slide =#7
Keihin PWK 38

I like the power delivery of the NIEF but it's too rich off idle. Got the N1EG and there was an improvement but had to go down on the pilot jet (previous 40). Good transition off idle into middle range and soft hit when WOT. Still a bit tricky to idle but a bit better than before. Air screw still bares almost no influence on idle, might have to go down again on the pilot jet.
Tried the N3CJ #3, MJ180, PJ40 but too much of a hit when WOT.

If you want smooth power but the N3CJ#3 ran clean (with a mid top hit), then consider NECJ#3 (and 2 sizes leaner on the main). It's much more linear.

[Vindicator]

Originally Posted by Jakobi

If you want smooth power but the N3CJ#3 ran clean (with a mid top hit), then consider NECJ#3 (and 2 sizes leaner on the main). It's much more linear.

Thanks, I'll give it a go . Is this a Suzuki needle ? I also have a NOZI waiting in line if the spooge doesn't stop.

[Jakobi]

Sure is the suzi needle. The NOZI is the same taper profile and diameter as a N1EI or NOZF ~= N1EF. The NOZx is a half a clip leaner. I think you'll like the Suzi needle.

[lonetree]

Originally Posted by Jakobi

Sure is the suzi needle. The NOZI is the same taper profile and diameter as a N1EI or NOZF ~= N1EF. The NOZx is a half a clip leaner. I think you'll like the Suzi needle.

speaking of the suzi needles:

09 ec250r with dmcca head mod, squish at 1.3mm.
10degC. dry air. about 300m.
NEDW 2nd from top.
40/178, AS 1.75 turns out. (at 2 turns out it sounded a little lean bout 1/4 throttle onwards, does this sound right?)
this is my first go at jetting, and i think i may have been lucky, was running a N1EG with same jetting but since getting the head done it hasnt run right, a big cough off idle.
put the nedw in, a little playaround with the air screw, and it seems good.
idle floats a little high coming back from higher revs but then settles down nicely. Pulls straight off idle and just keeps going to the moon, but nice and smooth.

[Jakobi]

Originally Posted by lonetree

speaking of the suzi needles:

09 ec250r with dmcca head mod, squish at 1.3mm.
10degC. dry air. about 300m.
NEDW 2nd from top.
40/178, AS 1.75 turns out. (at 2 turns out it sounded a little lean bout 1/4 throttle onwards, does this sound right?)
this is my first go at jetting, and i think i may have been lucky, was running a N1EG with same jetting but since getting the head done it hasnt run right, a big cough off idle.
put the nedw in, a little playaround with the air screw, and it seems good.
idle floats a little high coming back from higher revs but then settles down nicely. Pulls straight off idle and just keeps going to the moon, but nice and smooth.

Could try a bit more in on the AS to settle the idle a bit quicker, or a half clip richer might give it some more grunt off the bottom. I bet you could easily drop that main to a 175/172 as well.

[lonetree]

i will have to try your suggestions there jakobi, as i dont really know what im doing. what would be the half clip different needle NECW? or should i just try to find a small washer the right size?
thanks.