Rieju & GasGas Legacy Riders Club Forum  

Go Back   Rieju & GasGas Legacy 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 05-17-2018, 03:03 PM
taylor146 taylor146 is offline
Member
 
Join Date: Mar 2013
Posts: 20
Default 18 ec300 jetting

Hi all,
Since I've had the latest ignition map the NEDW needle I was using that seemed slightly rich now seems a bit lean up to 1/4 throttle. Would like to know what needle to use , was considering trying the standard needle again. Maybe NEDH?
Thanks
Darren


Reply With Quote


  #2  
Old 05-18-2018, 01:25 AM
fred99999au fred99999au is offline
Member
 
Join Date: May 2018
Posts: 93
Default

I have a Suzuki NECJ in my 18 GP300. Dunno if that helps due to the different head or not.

Need to find a table of needle specs to work out if it is richer or leaner.
Reply With Quote
  #3  
Old 05-18-2018, 03:44 AM
Jakobi's Avatar
Jakobi Jakobi is offline
Super Moderator
 
Join Date: Oct 2010
Location: Australia
Posts: 7,994
Default

J diameter is leaner than W. Going to a H may help with your issue, or bumping the pilot up a size might too.

What clip position are you in? Have you tried going richer?
Reply With Quote
  #4  
Old 05-18-2018, 04:21 AM
Doc Brown Doc Brown is offline
Senior Member
 
Join Date: Dec 2017
Location: Austria, Europe
Posts: 586
Default

If its lean up to 1/4 changing the needle wouldnt change that. You can try to close the air screw 1/4 turn wise or take next bigger pilot jet as Jakobi suggested.
Reply With Quote
  #5  
Old 05-18-2018, 03:40 PM
Gottsell Gottsell is offline
Member
 
Join Date: Jan 2018
Posts: 28
Default

I have the same problem with my std ec300. It work fine before the new mapping. Now i cant get it right. Either it goes very rich or When it goes fine it is detonation
Reply With Quote
  #6  
Old 05-18-2018, 08:27 PM
Motocrotts's Avatar
Motocrotts Motocrotts is offline
Member
 
Join Date: May 2018
Location: Arizona
Posts: 27
Default

With the new mapping I'm running the standard needle in the 2nd pos, 170MJ and 40PJ. 2500' and 60 - 80 degs F.
Reply With Quote
  #7  
Old 05-19-2018, 03:13 AM
taylor146 taylor146 is offline
Member
 
Join Date: Mar 2013
Posts: 20
Default

Hi all thanks for your replies.
Had an interesting conversation with a guy here in the UK who looks after the team bikes for gasgas uk. He said they also tried all sorts of different needle's before the map update , but now runs the standard needle and says it's spot on. He said they have been feeding some input back to the factory and from what he's heard they have advanced the ignition curve down low and retarded it further up . So will give the standard needle a try again and see how it is.
Reply With Quote
  #8  
Old 05-20-2018, 10:48 PM
chunkysoup's Avatar
chunkysoup chunkysoup is offline
Gold Level Site Supporter
 
Join Date: Dec 2015
Location: Arizona, USA
Posts: 28
Default

I went back to the stock needle after the remap and it ran way better.
__________________
2018 GASGAS 300XC
2011 GASGAS 300EC
1981 CR250r
1999 Excelsior Henderson Super X
2003 FZ1
Reply With Quote
  #9  
Old 05-21-2018, 02:04 AM
fred99999au fred99999au is offline
Member
 
Join Date: May 2018
Posts: 93
Default

What is the stock needle?
Reply With Quote
  #10  
Old 05-21-2018, 09:46 AM
chunkysoup's Avatar
chunkysoup chunkysoup is offline
Gold Level Site Supporter
 
Join Date: Dec 2015
Location: Arizona, USA
Posts: 28
Default

Quote:
Originally Posted by fred99999au View Post
What is the stock needle?
The one that came in the bike from the factory the N1EF needle
__________________
2018 GASGAS 300XC
2011 GASGAS 300EC
1981 CR250r
1999 Excelsior Henderson Super X
2003 FZ1
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
New to me 04 ec300...jetting help 04gasgas Enduro Intake/Carburetion - 2 stroke 10 02-12-2011 05:08 PM
ec300 jetting Steve ROC Enduro Intake/Carburetion - 2 stroke 4 04-26-2010 08:49 PM
ec300 jetting moff747 Enduro Intake/Carburetion - 2 stroke 8 01-08-2008 03:21 PM
LTR jetting kit for an '03 EC300 WoodsRider Enduro Intake/Carburetion - 2 stroke 1 05-24-2007 10:09 AM
04 EC300 jetting? DWreck Enduro Intake/Carburetion - 2 stroke 13 11-26-2006 08:12 PM




All times are GMT -5. The time now is 01:54 PM.


Powered by vBulletin® Version 3.8.6
Copyright ©2000 - 2024, Jelsoft Enterprises Ltd.
Copyright 2009 - GasGasRider.org