2018 Ec300 Jetting Specs

[Saddleback51]

My 2019 EC 300 runs perfect stock out of the box at @ 500?...must be the changes made from 18 to 19...any thoughts?

 

[Jakobi]

My 2019 EC 300 runs perfect stock out of the box at @ 500?...must be the changes made from 18 to 19...any thoughts?

Gas Gas have delivered their engines of varying capacities, with different model keihin carbs across the years.. all using the one same needle.

You can decide based off that how close their stock jetting probably is.

Granted the bikes have always ran alright... usually a bit fat off the bottom which can load up a bit in tight riding, with a wild mid range snap.. and very less than average fuel consumption. Definite room for improvement.

The N1E series is also what KTM uses in their SX models. They use the NR8/N3E etc in their exc models. And many riders prefer the Suzuki range of needles in them too.

Similar story with Beta...

 

[Fieds83]

Today a made installed a half clip shim.

NEDW clip 2 plus shim
40 pilot
Air screw 1 turn
175 main

Including the shim makes it the same as NECW clip 3 i believe.

Improved snap off the bottom, eliminated the flat spot. A bit of burble came back at cruising speeds.

Might give clip 2 and the 45 pilot a go.

 

[dzhitshard]

can anyone confirm for me the order of richness of these 3 needles?

NEDW
NECJ
N3CH

I have the N3CH on it's bottom richest clip position and at 60f temp at 1000'ASL it was good. At 40f it has a lean bog off idle and I can't make it richer with the clip. MooseRun is tomorrow and I have the 2 other needles but very little window window to test.

 

[dzhitshard]

To clarify I'm looking for which of the top 2 would come closest to an N3EJ. Im missing the connection between N"3"XX and N"C"XX needles

 

[Wimpy525]

Thanks to Jacob and Doc Brown

So rode this weekend with the changes made by Jacob and Doc Brown. So here I am with a 180 main, 42 pilot and an NEDW needle. Idle screw was too far in made that adjustment and tired it out around the house seemed good. Did a ride this weekend and bike ran wheel. A bit of spoog around the exhaust, just enough to tell me it made the trip. I did experience a bit of a hanging idle after lugging the bike for very long sections but it cleared up after a few seconds of idling.
I am going to tear the bike down at this point check the squish and figure out if I am going to cut the head or buy the RK tech head.
So thanks for the help guys.

 

[Doc Brown]

Hi Wimpy525, good to see that you could improve the running of your beast. They tend to spooge quite a bit, but that's pretty normal.
If the lean hang is only for a second or two and the bike is running fine otherwise I would not touch the carb. If its definitely more than two seconds you could try to close the air screw in 1/8 steps but not more than one quarter turn. Normally that helps to cure it and one quarter is sure within the limits.

Looking forward to reading your experiences and thoughts if you do the head cut.

 

[Jakobi]

I've got 42 NEDW#2 175 with a cut head.. getting very excited too see how the 18 model runs compared to my previous engines.

 

[Wimpy525]

I've got 42 NEDW#2 175 with a cut head.. getting very excited too see how the 18 model runs compared to my previous engines.

You should be! I think the motor is great good and luggable. What really stands out to me is the suspension, I had my zokes and the ohlins shock set up really well on my 13. Well with the KYB I am amazed at how hard and fast I can hit stuff. Rode sand all last weekend and I am not a sand rider and felt pretty comfortable with just a few more clicks of compression on each end.
This bike is just awesome, so awesome in fact I am going to race the entire local enduro series next year all 17 events. This is something I have not done since 13 so that how stoked I am about this bike.

 

[symon260z]

Thank you

I wanted to say thank you for all the people that have posted on this thread. My 2019 EC300 ran terribly at anything below 75% throttle. I fitted a NEDW needle 2nd position from the top, a 40 Pilot Jet and I have since found that the Air screw at about 2 turns is about right.

Now my GasGas runs beautifully all the way through the rev range, now I can concentrate on learning to ride the bike.

Thanks again

 

[Mikelb01]

Are the JD Jett kits any good or should I just look at what most are using on here and order a few parts individually?

 

[Gasser Nate]

You can get very good results and will be able to tune your bike to suit varying conditions if you buy a suitable needle and some jets and go from there. Jd kits are ok but way overpriced in my opinion.

 

[Jim Cook]

Are the JD Jet kits any good or should I just look at what most are using on here and order a few parts individually?

I agree with Nate. Order individual parts.

 

[alang]

N2ZW or N8RW

anyone try N2ZW or N8RW needles?
Running N8RH in my 17 sherco 300 ser; jetted about perfect
for 800'asl 60-80F
I think N2ZW is a step richer than N8RW maybe in the taper?
Jim Cook!!!! 2002 GG300!
Looking at 2022 MR300 pro