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Enduro Intake/Carburetion - 2 stroke Jetting, Reeds, Air Filters, etc.

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Old 04-17-2018, 06:36 PM
Gibnut Gibnut is offline
Join Date: Jan 2018
Posts: 65

Originally Posted by Jakobi View Post
That's the AS2, flat cap secured by 2 x m5 bolts.

AS1 is a round internally threaded cap.
Right you are, Jakobi! I had my ASses back to front

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Old 06-10-2018, 02:58 AM
Gasser Nate's Avatar
Gasser Nate Gasser Nate is online now
Join Date: May 2010
Posts: 89

2018 Ec300 0-1000ft
40 pilot NEDW #2 172 main.
Electric smooth power, barely even feel the power valve open. But crack the throttle and it sings nicely pulling through into a crisp strong top end.
Less than 5l for over 58 k?s of tight nasty terrain.
Back on a gassy! 2018 EC300! 🤘
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Old 06-29-2018, 03:25 PM
Doc Brown Doc Brown is offline
Join Date: Dec 2017
Location: Austria, Europe
Posts: 95

2018 300GP - PWK 38

Temperature (degF) = 68 F to 86 F
Elevation (feet) = 300 to 1000 Feet
Main jet = 176
Pilot jet = 40
Needle & notch = JD Blue, clip 3 from top
Air screw setting = 2 Turns Out
Throttle valve/slide = no clue, sorry
Fuel: 102 Octane with 80:1 (Amsoil Saber Pro) or alternative
Fuel: 95 Octane with 60:1 (Putoline MX9)
Float height: 1mm lower than specified
Spark Plug: NGK BR8EG

FMF pipe and muffler (OEM)
Crankcase vent disconnected from intake boot (like on XC model)
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Old 07-09-2018, 10:44 AM
Chris_tian Chris_tian is offline
Join Date: Jan 2017
Location: Germany
Posts: 16


at the moment i try this at my 2018 GP

Location: Europe/Germany
Temp: hot 25-32c 77-89F
Elevation: 0-300m 0- 1000F
Pilot 40
Main 172
Needle: N1EF
Noth: #2
Slide 9
AS 1,5

It is much better but i think the needle is the problem so i try the NEDW.
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Old 07-09-2018, 04:13 PM
Keg Keg is offline
Senior Member
Join Date: Aug 2006
Posts: 304

It is really cold here at the moment. Bottom of Australia.
So I thought I would try something different from the NEDW. It was a little lean if I trailed throttle into corners or ran the idle too high.

GP300 2018
300-500m above sea level
5-10 degrees c (40-50f)
N1EH #3
Pj 42
As 1 1/4

It starts really easily and is strong and linear through the rev range. I little heavy on fuel, but overall very rideable in cold weather. Stalls a little bit but I haven't checked the float height yet.
EC300 2019 (11 Gassers owned, many more to go)
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Old 07-12-2018, 01:30 PM
motopsycho87 motopsycho87 is offline
Senior Member
Join Date: Jun 2013
Location: Suffolk, UK
Posts: 872

2006 ec300 - sea level
NECH top clip
168 main

2002 ec300 supermoto
NECH top clip
165 main

Both run I credibly well and haven't seized yet! (The NExx needles are rich at full throttle, hence small mains)
2006 EC300 Enduro - Ignitech CDI - 42/162 NECJ#1, DEP spanny, FMF power core, .46 front 5.4 rear

2002 EC300 Supermoto - Ignitech CDI - 38/165 NEDJ#1 Inox spanny, FMF power core, .50 front 5.7 rear
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Old 07-12-2018, 04:42 PM
Gottsell Gottsell is offline
Join Date: Jan 2018
Posts: 24

2018 ec 300
Sea level
Nedh 3
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Old 08-01-2018, 06:15 AM
Gibnut Gibnut is offline
Join Date: Jan 2018
Posts: 65

Head cut & bowl reshaped (TSP Australia ). Squish now 1.35mm.

42p, 175m, a/s 1.5, NEDW #3, Motul 710 @2% in 98RON.

Quiet, smooth, clean power. No spooge to speak of. More bottom end/mid post-head cut and the bike is liking a 42p now, too.

I?m pretty finicky with jetting set up & this is spot on for the bike, rider & terrain.
Gas Gas 2018 EC250 Six Days - sold
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Old 09-17-2018, 12:41 PM
Jacob 'Berg Jacob 'Berg is offline
Senior Member
Join Date: Mar 2014
Location: Scottsdale, AZ
Posts: 414

2018 XC 250
Head has been cut for 100 octane race gas.

Temperature: 95 degrees F - 80 degrees F
Elevation: 2000'-7,000'
Pilot: 40
Main: 172
Needle: NEDW 2nd position
A/S: 1.5 out
Moltul 710 @ 50:1

Bike pulls very strong from bottom to top. Noticeable gain in bottom and mid from cut head and power delivery is more linear now. Still getting a good amount of spooge from pipe.
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