GasGas Riders Club Forum  

Go Back   GasGas Riders Club Forum > GasGas Enduro Technical Forums > Enduro Intake/Carburetion - 2 stroke

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


Reply
 
Thread Tools Display Modes
  #1  
Old 12-07-2010, 08:11 PM
JP4's Avatar
JP4 JP4 is offline
Senior Member
 
Join Date: Nov 2010
Location: Ontario, Canada
Posts: 251
Default 2010 EC300 Factory Jetting Specs - WTF?

I posted before about a new 2010 EC300 that I recently took deliver of. I've had a chance to plow into the carb and here are the factory settings:

Slide: #7
Needle: N1EF - Top clip (leanest)
Main: 175
Pilot Jet: 40
Air Screw: 5 1/4 out

WTF? Kinda seems like they just bolted on the carb as it came out of the box from Japan with no thought as to set-up for the bike or where it was going. The needle clip and air screw settings make no sense.

Based on my searches on this site and my locale (600' ASL, average riding temp 20C) I think it's way lean. I've ordered a needle (CCK, it seems a popular choice), and some fatter main and pilot jets. Won't really be able to ride the bike for a few months, as it's pretty much full on winter here at present.

Does it sound like I'm on the right track regarding the jetting?

Jason

Otherwise, I'm super impressed with the bike and can't wait to ride it for real -I'm thinking a trip to Georgia or Florida this winter is gonna be must!


Reply With Quote


  #2  
Old 12-07-2010, 08:17 PM
2whlrcr 2whlrcr is offline
Senior Member
 
Join Date: Aug 2010
Posts: 192
Default

Go through the jetting data base thread, lots of info in there.
Reply With Quote
  #3  
Old 12-07-2010, 11:07 PM
TNT Cycle TNT Cycle is offline
Senior Member
 
Join Date: May 2010
Location: New Jersey
Posts: 128
Default jetting

my 2010 300 came very similarly jetted, all over the map. It was mighty lean at sea level. Raised needle and fatter pilot and its ok jetting wise. Soon to try some needles to remove crazy lean flat spot in mid-range...

cheers,

Rick
__________________
Track-N-Trail Cycle LLC
trackntrailcycle.com

2011 Beta 400 RR (sorry )
2010 GAS GAS XC 300
2007 KTM 200 XC
Reply With Quote
  #4  
Old 12-08-2010, 08:42 AM
jeffs2200 jeffs2200 is offline
Senior Member
 
Join Date: Aug 2010
Location: LaVernia Tx, (San Antonio)
Posts: 259
Default

My 2011 300 had the same settings, except the airscrew.

I do not find it to be lean at all. I had to go down to a 38 pilot because it was loading up on bottom. I may try a leaner needle and fatter jetting. I think I am going to try the N3CH from my KTM with a 40 or 42 pilot, 3rd clip and maybe try a 178 main and see haw that does.
Reply With Quote
  #5  
Old 12-10-2010, 04:19 AM
Jakobi's Avatar
Jakobi Jakobi is offline
Super Moderator
 
Join Date: Oct 2010
Location: Australia
Posts: 7,877
Default

Jeffs. I think you will find the N3CH right on the money with the 40 or 42 pilot. I am running an N3EG in mine. The CH is a half clip leaner, and a step leaner on the 0 - 18th opening.

I have N3EG#1, 38 Pilot, 175 Main. 100M - 500M, 20-30C, 60-100% humidity. Absolutely hauls. Smooth crisp responsive oodles of power from right off idle.. Truely transformed the bike!

Fuel consumption went from hitting reserve at 90km (after adding an extra L of fuel) to 110km reserve off the 9.5L tank.

I wish they all came jetted like this from the factory!
Reply With Quote
  #6  
Old 12-10-2010, 09:00 AM
jeffs2200 jeffs2200 is offline
Senior Member
 
Join Date: Aug 2010
Location: LaVernia Tx, (San Antonio)
Posts: 259
Default

Thanks, I will give it a try.
Reply With Quote
  #7  
Old 12-10-2010, 11:43 AM
Jakobi's Avatar
Jakobi Jakobi is offline
Super Moderator
 
Join Date: Oct 2010
Location: Australia
Posts: 7,877
Default

No worries Jeff,

I'd be interested to hear if you get the same results.
Reply With Quote
  #8  
Old 12-10-2010, 07:10 PM
JP4's Avatar
JP4 JP4 is offline
Senior Member
 
Join Date: Nov 2010
Location: Ontario, Canada
Posts: 251
Default

Quote:
Originally Posted by Jakobi View Post
Jeffs. I think you will find the N3CH right on the money with the 40 or 42 pilot. I am running an N3EG in mine. The CH is a half clip leaner, and a step leaner on the 0 - 18th opening.

I have N3EG#1, 38 Pilot, 175 Main. 100M - 500M, 20-30C, 60-100% humidity. Absolutely hauls. Smooth crisp responsive oodles of power from right off idle.. Truely transformed the bike!

Fuel consumption went from hitting reserve at 90km (after adding an extra L of fuel) to 110km reserve off the 9.5L tank.

I wish they all came jetted like this from the factory!
Man o man ... so many needles ..... I've plowed through needle chart comparisions, but without any real time on the bike I'm just guessing.

Ordered a CCK caused it seemed middle of the road ... I think ... trying to get my head around the tapers and lengths, diameters ... not to mention effects on PJ ... eyes glossing over ... how did I ever get through law school?

I read about the KTM needles (N3CH/G et al) but wasn't sure. Maybe too much info ... Who's prepared to venture an opinion and say that they are better or worse for the 300 Gasser at an elevation under 1000' (300M) ASL?

It's a mystery to me so any opinions on the N3 needles would be appreciated.

Guess I'll just bolt up what seems like a reasonable set-up and use that as my base point - I think for 15c (someday it'll be warm!), and 250M ASL this should be safe:

#7 slide
CCK needle -3rd clip
40 pilot
178 main
1 1/2 air screw

Cheers,

Jason
Reply With Quote
  #9  
Old 12-10-2010, 09:51 PM
jeffs2200 jeffs2200 is offline
Senior Member
 
Join Date: Aug 2010
Location: LaVernia Tx, (San Antonio)
Posts: 259
Default

I have the N3CH 3rd clip, 40 pilot, 175 main.

I will test Sunday and report back.
Reply With Quote
  #10  
Old 12-11-2010, 06:21 AM
Jakobi's Avatar
Jakobi Jakobi is offline
Super Moderator
 
Join Date: Oct 2010
Location: Australia
Posts: 7,877
Default

Quote:
Originally Posted by jeffs2200 View Post
I have the N3CH 3rd clip, 40 pilot, 175 main.

I will test Sunday and report back.
Good luck. Don't be afraid to move the clip up one on the trail just to evaluate.

I found my bike would burble on clip 3, runs well on 2, but 1 was just even better again. So clean and crisp!
Reply With Quote
Reply



Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
2010 250 EC Jetting. enduro1 Enduro Intake/Carburetion - 2 stroke 13 08-19-2010 06:56 PM
2010 Sachs fork factory compression stack specs(ec300) bergerhag Enduro Suspension 9 07-02-2010 12:18 AM
2010 EC250 Jetting WTEC Enduro Intake/Carburetion - 2 stroke 1 03-26-2010 10:41 AM
jetting for new 300 racing 2010 fabulous furry Enduro Intake/Carburetion - 2 stroke 9 08-11-2009 10:28 AM
04 EC300 jetting? DWreck Enduro Intake/Carburetion - 2 stroke 13 11-26-2006 09:12 PM




All times are GMT -5. The time now is 06:22 AM.


Powered by vBulletin® Version 3.8.6
Copyright ©2000 - 2019, Jelsoft Enterprises Ltd.
Copyright 2009 - GasGasRider.org