Jetting for 2011 EC250 UK

[Quigs]

Looking for a starting point for jetting on a 2011 ec250

38mm AS2 carb.

I'm unsure on current jetting specs.

Typical UK weather 6?c to 14?c. 0- 1000ft

Thanks in advance. Looking for needle recommendation. Tight wooded trails with the a few hillclimbs. Thanks

 

[Doc Brown]

Hi Quigs,

have you had a look at the jetting thread? I am sure you will find useful information there as most members post their personal settings there.

Good Luck
Steve

 

[Quigs]

Hi Steve.

I been having a good look through the jetting threads etc.

Looks like the NEDW suzuki needle could be a good starting point. Also recommended by jakobi.

 

[Quigs]

Just checked my specs now and 're as follow.

PJ 40
AS 3/4 OUT
NEEDLE, N1EF 2ND CLIP
MJ 178

 

[Davehuge]

Someone just posted a similar question, see it here...

http://www.gasgasrider.org/forum/showthread.php?t=23784

 

[Quigs]

Thanks Dave.

Ordered the NEDW now

 

[Quigs]

Got the NEDW needle.

Thinking of starting at 42 pj, needle position 3, and a 178 mj

 

[Davehuge]

Got the NEDW needle.

Thinking of starting at 42 pj, needle position 3, and a 178 mj

Sounds like a good starting place...hope it goes well.

 

[barossi73]

If you find clip 3 too rich,clip 2 too thin...options...
Necw is same taper,same diam,half clip pos leaner
Necw#3 = Nedw#2.5
Was useful for the 200(Nech #3)but most 250s seem happy with Nedw#2

 

[Davehuge]

If you find clip 3 too rich,clip 2 too thin...options...
Necw is same taper,same diam,half clip pos leaner
Necw#3 = Nedw#2.5
Was useful for the 200(Nech #3)but most 250s seem happy with Nedw#2

In addition to what barossi73 explained...

You might find these tables useful that relate to the Suzuki NE** needles:

 

[Quigs]

Thanks for all the input,

Currently now on.

40 pj
NEDW #3
172 mj
1.5 OUT on the AS

Going to just try raising the needle to #4 so it feels rich then go #3 and #2 Just so I can feel the difference.

Still new to jetting so just want to feel and hear the difference

 

[Quigs]

Went out on bike over the weekend but getting a bit of spluttering when trying to accelerate. Might need to try needle in clip position 2 ??

 

[RudolfHucker]

As per post #9, you may need to be between clip positions 2 and 3 to hit the sweet spot that a lot of people report using NECW @ clip 3.

You can do that by using a fine shim under the needle rather than buying an NECW. I got one from a local model shop that did the trick but it's very fine tuning for a bike engine in typical unpredictable UK weather.