Jetting Database - PLEASE ADD YOUR SETTINGS

[MJC]

Bike= 11' xc250 Six Days
Carb= 38mm ASII
Elevation= 0-2500
93 octane pump gas

Main=172
Pilot=40
Needle=NEDW #3 (optional needle from an 07' Suzuki rm 250)
AS=2 turns out
Slide= stock #7

These Suzuki needles, NEDH,NEDW and NEDJ, rich-lean are the best needles I've used in the bike so far, and I've used almost every needle listed in here and then some. The bike has smooth responsive tractable power(torque) and a bunch more over rev than with the cck or ddk series needles. They just plane work.

I would recommend the NEDW series needle for 250's. The NEDJ needle for 300's, and the NEDH needle for 200's. They also come in an NEC-X which is 1/2 clip position leaner.

[Jakobi]

Wheres the best place to order them from? I have seen the ktm lads are all over these needles of late too!

[MJC]

Originally Posted by Jakobi

Wheres the best place to order them from? I have seen the ktm lads are all over these needles of late too!

I ordered mine from Rockymountainatv, but I see they no longer sell oem parts. I would give motosport.com or midwest action cycle a try.

[wasp4banger]

Bike year & model = EC300 2006
Temperature (degF) = 50 - 80
Elevation (feet) = 0 to 1000
Main jet = 178
Pilot jet = 42
Needle & notch = CCK Needle 2nd from top
Air screw setting = 1 1/2
Throttle valve/slide = standard 8?
Large volume power valve cover fitted
Reduced squish by only having 0.5mm base gasket

Results:Responsive bottom end with rapid acceleration. I swapped with my mate last time out, he has a KTM EXC300 and he is envious of the GasGas grunt.

[stainlesscycle]

hot weather jetting (no idle with ddk needle above 60 degrees..)

Bike year & model = EC300 1999
Temperature (degF) = 60 - 100
Elevation (feet) = 800 to 2000
Main jet = 175
Pilot jet = 45
Needle & notch = DDM #3
Air screw setting = 2.5
Throttle valve/slide = #7
Large volume power valve cover
squish is 1.1.. 50/50 110/93 fuel, 50:1 amsoil dominator, messico pipe, 2k2 + 9 oz. fww

starts 1 kick, bike idles smooth, pulls hard from the bottom and in a hurry. snappy and responsive everywhere. no stutters or bogs anywhere. no 1/8 throttle 4 stroking problems that i have with ddk... bike will idle until it runs out of fuel.

[MonsterTruck]

2011 EC300 #36 stamped on top of carb
Colorado 8k-12k ft
60-80F
Single track and a little sand-mud
Main 160
JD red needle 2nd clip
35 pilot
Air screw 2-2.5
6.5 slide ( going to try a 7)

Seems a lot leaner than most other postsers, but it runs very well. I use a lot of low rpm lugging on the tech climbs and it pulls like my 450, only better...

[coachtech]

2011 ec 300

7700'-13000' asl
single track/two track

STARTED:
N8RW
2nd clip(stock)
180 stock
42 pilot

CURRENT setting:
36mm carb
#7 slide
necj needle 3rd clip
152 main
38 pilot

cheers
jz

[Jakobi]

EC300 Euro S3 Head High High Insert
PWK ASII 38mm
Temp 15-35C
Elevation 300M - 1000M
Squish Height 1.8mm
GRO 50:1

42P
N3EW #2
178M

Clean off idle. Small rich spot transferring onto the needle. Can be cleaned up going half a clip leaner but then gets too lean in the mid range. Pulls hard right through to 9800rpm. Idles well and doesn't hang.

[chucky]

Jetting update 2010 EC 200

Location Guateng , south Africa

1300-1800m asl (4000-500ft)
temp 25-38 deg C
Maxima 927 50:1

NOZI needle
clip#2
162 main
38 pilot
1.5 turns out AS

[rxmx]

2011 EC250 Race 38 Keihin (with black spacer / adapter to airbox)

Mid TN

300 - 1000 ft msl
temp 35 - 60 lately
Motorex 2T 50:1

JD Red needle
clip #4
42 pilot
170 main
AS 1.5 out

Update: As temps rose above 50F, above jetting was rich around 1/2 throttle. Now at
JD Blue clip 2
42 pilot
170 main
My favorite so far.....