Jetting Database - PLEASE ADD YOUR SETTINGS

[cchracer77]

Bike year & model = 2010 ec300
Temperature (degF) = 50
Elevation (feet) = 5280
Main jet = 165
Pilot jet = 40
Needle & notch = N3CG notch 3
Air screw setting = 2 out
Throttle valve/slide = #7

Results: Good all around, touch lean off idle.

[mcnut]

Bike year & model = 2011 XC250 6-days, 36mm carb AS2
Temperature (degF) = 45-75, usually high humidity
Elevation (feet) = 880ft. most of the time
Main jet = 175
Pilot jet = 42
Needle & notch = N1EF, 3rd
Air screw setting = 1 3/4
Throttle valve/slide = 6.5

Results:
Awesome! This bike has great bottom end, mid-range, and top end. Plug looks perfect. I wish I could get the 300 running this good.

[n_green]

Bike year & model = 2011 EC300E fitted with 36mm carb and reed block spacer
Temperature (degF) = 50 - 60 F, 50% humidity?
Elevation (feet) = 3000f, or 900-1100m
Main jet = 178
Pilot jet = 38
Needle & notch =N1EG 1st clip from the top
Air screw setting = 2.25 turns out
Throttle valve/slide = 6.5 notched

Results:

This was in the bike when I got it second hand. The previous owner said he had it re jetted by his local bike mechanic.

The bike seems a bit doughy right off idle before it explodes through the mid range and then dies up the top. Im not sure if it's slightly lean or rich on the pilot though I'm thinking slightly rich as it seems to clear and the pull hard through the mid range. Playing with the air screw there isn't a great deal of difference between .5 turns and 2.5 turns out. Mid range seems really good and I'm happy with it. There is no overrev on this bike. It is way too rich on the main. I can feel it flood and it loses all power and sputters.
It also appears to be bad on fuel economy, after a 60k ride 50/50 fire trail/single track lug it had used roughly 7L of fuel.

I plan on playing with the main and needle. I've ordered some NECW, NEDW, NECJ, NEDJ Suzuki needles, hopefully this wil clear up bottom end without sacrificing the mid range. I'm wondering though if the slide has something to do with the bottom end richness?
I'll also have to get some smaller mains as all the spares that came with the bike are all in the 170's and I'd think that's too big for a 36mm carb?

[kiwia]

Bike year & model = 300 2010. (Spain)
Temperature (degF) = 5 -15?.
Elevation (feet) = 900m
Main jet = 178
Pilot jet = 48
Needle & notch = NOZG 3#.
Air screw setting = 2,5
Throttle valve/slide =

Results: After checking many posibilities, this is the best for me, I have tried with N3CJ, NECJ, N2ZW, N3CH, N1EG, N1EF AND NOZG.

With a 48 as pilot jet bike runs very well, but you can not use it with all needles, only N3CJ, NECJ or NOZG.

[hamilton]

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Bike year & model = 2012 XC 200
Temperature (degF) = 40F
Elevation (feet) = Sea level
Main jet = 172
Pilot jet = 45
Needle & notch = NOZH 2 from top
Air screw setting = 3/4- 1 turns out
Throttle valve/slide = 6.5
Pre-mix 40:1
Results:
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No engine mods, AS 1 Carb. This setting works very well for me fine tune with air screw for best off idle power.

[KTMAndy]

What is the difference between all the needles? Mine says n1ef the book lists an n1ec? I keep reading people using JDKH01 blue? CCK etc.

Has anyone got a link that cross references the different needle types and where to buy them from?

I am progressing with playing with the jets and theoretically I understand the amount of fuel/ air the jet would deliver if I move it up the clip. But what is the difference in the actual needles?

[thejackrabbit]

Bike year & model = 2006 EC 200
Temperature (degF) = 70-85
Elevation (feet) = 1,000
Main jet = 178
Pilot jet = 40
Needle & notch = N3EJ 4th notch
Air screw setting = 1 - 1.5 out
Throttle valve/slide = 5

Results: hard hit, could really use a 6 slide, strong mid and top, bottom could be better i might switch back to a 42. lots of spooge partly from castor 927 a lot less with amsoil, bike still ran good in 40 degree weather

[Dschubba]

Bike year & model = 2013 EC300
Temperature (degF) =60
Elevation (feet) =sea level to 3000
Main jet = 180
Pilot jet =35
Needle & notch =N1EF 2nd from top
Air screw setting =2.5 out
Throttle valve/slide =7

Results:Runs nicely. My track quite tight, so mostly slow running and on the default settings (42/180 clip in middle) i'd foul a plug before i'd used a tank of gas.
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[Flashlight]

Bike year & model = 2006 EC300
Temperature (degF) = 60-80 summer
Elevation (feet) = 2000-4000 ft
Main jet = 178
Pilot jet =42
Needle & notch = N3EG #2
Air screw setting = 1.5-1.75 out
Throttle valve/slide = unknown(appears to have been cut and the number was ground off)

NOTE RB Head mod done. 46:1 full synthetic, 94 octane pump gas. Turbine 2 core SA. Floats at 18mm.

Results:
Snap from off idle on up. No hesitation or loading up it just pulls! Tan colored plug with just a light ring of spooge around silencer. Starts and idles very nice.

Will bog with a 40 pilot and feels soft with a 175main. Loads up a bit if the clip is in the middle .

[hamilton]

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Bike year & model = 12 xc250
Temperature (degF) = 60F
Elevation (feet) = sea level
Main jet = 178
Pilot jet = 42
Needle & notch = JD blue needle clip#3
Air screw setting = 1 1/4 out
Throttle valve/slide = 6.5 slide

Results: Carb AS 1 38mm, 40-1 pre-mix, engine mods, FMF gnarly pipe and check point power valve cover.
This setting has taken me a while, think I've tried about every suggested needle on this site. Needed to change slide to get the results I wanted. Nice smooth,strong power from bottom to top.
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