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 01-13-2011, 09:45 PM
husley's Avatar
husley husley is offline
Bronze Level Site Supporter
 
Join Date: Jan 2010
Location: Western US
Posts: 536
Default Once again someone asking for jetting advice

I searched the site but I have been out of the 2T loop for a while and most is the posts I found only helped a little bit.

Without asking for too much of your time:

I am looking for a middle-of-the-road starting point for my 2010 300.

4000-6000' 30-50'F

Just need some suggestions to get me started.

Thanks

J

p.s. Looking to error a little on the rich side and I prefer more linear power deliver


Reply With Quote


  #2  
Old 01-13-2011, 09:47 PM
husley's Avatar
husley husley is offline
Bronze Level Site Supporter
 
Join Date: Jan 2010
Location: Western US
Posts: 536
Default One more thing

I promise to never ask the other dreaded question "where should I send my suspension"
Reply With Quote
  #3  
Old 01-14-2011, 06:45 AM
iancp5's Avatar
iancp5 iancp5 is offline
Senior Member
 
Join Date: Aug 2006
Location: U.K.
Posts: 829
Default

I can't answer but have you spotted the other recent threads on ASI Vs ASII and the jetting database?
Reply With Quote
  #4  
Old 01-14-2011, 07:54 AM
swazi_matt swazi_matt is offline
Senior Member
 
Join Date: May 2010
Location: From Swaziland, Now Hamilton New Zealand the “look but don’t touch” enduro heaven
Posts: 2,334
Default

not sure about the temp, but i am on similar elevation and think the place to start is to buy an N3EH needle, second clip and go down one size from stock on the main jet and standard on the pilot
__________________
2003 txt250 Pro
2013 Ossa 280i
Reply With Quote
  #5  
Old 01-14-2011, 08:02 AM
swazi_matt swazi_matt is offline
Senior Member
 
Join Date: May 2010
Location: From Swaziland, Now Hamilton New Zealand the “look but don’t touch” enduro heaven
Posts: 2,334
Default

have you read this one?

http://www.gasgasrider.org/forum/showthread.php?t=8325
__________________
2003 txt250 Pro
2013 Ossa 280i
Reply With Quote
  #6  
Old 01-16-2011, 09:34 AM
husley's Avatar
husley husley is offline
Bronze Level Site Supporter
 
Join Date: Jan 2010
Location: Western US
Posts: 536
Default How does this sound?

This is what I found in the carb: (besides some old and nasty smelling fuel)

2010 300

Main 180

Pilot 40

NEF 3rd clip

Slide 7

How does this sound for 4000-6000' and 30-50' F ?

Thanks to all for your input

J
Reply With Quote
  #7  
Old 01-16-2011, 10:01 AM
Krieg's Avatar
Krieg Krieg is offline
Senior Member
 
Join Date: Dec 2010
Location: Matthews, NC
Posts: 158
Default

Quote:
Originally Posted by husley View Post
This is what I found in the carb: (besides some old and nasty smelling fuel)

2010 300

Main 180

Pilot 40

NEF 3rd clip

Slide 7

How does this sound for 4000-6000' and 30-50' F ?

Thanks to all for your input

J
Sounds way too rich to me. How does it run?
__________________
'11 Husky CR150, '11 GasGas XC 300-E, '11 Kawasaki KX250F, '71 Hodaka ACE 100B+
Reply With Quote
  #8  
Old 01-16-2011, 01:31 PM
husley's Avatar
husley husley is offline
Bronze Level Site Supporter
 
Join Date: Jan 2010
Location: Western US
Posts: 536
Default Hmmmm

Quote:
Originally Posted by Krieg View Post
Sounds way too rich to me. How does it run?
Not sure, have yet to start it.

Does it seem more like Sea Level jetting?
Reply With Quote
  #9  
Old 01-16-2011, 04:07 PM
Krieg's Avatar
Krieg Krieg is offline
Senior Member
 
Join Date: Dec 2010
Location: Matthews, NC
Posts: 158
Default

Quote:
Originally Posted by husley View Post
Not sure, have yet to start it.

Does it seem more like Sea Level jetting?
Well, I'm not sure about the needle, but the main and pilot seem awfully fat for your altitudes.
__________________
'11 Husky CR150, '11 GasGas XC 300-E, '11 Kawasaki KX250F, '71 Hodaka ACE 100B+
Reply With Quote
  #10  
Old 01-16-2011, 04:40 PM
webmaster's Avatar
webmaster webmaster is online now
Administrator
 
Join Date: Jul 2006
Location: Portland, Oregon, U.S.A.
Posts: 1,787
Default

Your needle is an n1ef not nef...

If it were me - I would go with one of the following : GMPs recommendations (JD jetting) as a baseline, the n3 series needles or a cck, etc. and then de-rate for your altitude. Consider sea level main and pilot to be 178 main and 45/48 pilot for sea level when using a leaner needle. If the jetting is good at sea level or close to it, then the jetting compensation tables in the manual are accurate.

If you want to have a great working carb and don't want to do a bunch of tinkering - send it to Ron at RB-Designs for his carb mods. The nice thing about his modifications is that he internally mods the carb to add pilot circuit sensitivity - so you can quickly dial in changes for changing altitude & temps. He adds a knurled air screw adjuster that you can turn the air screw with a gloved hand, etc.

And, for those in the u.s. I would spend the money to have Ron massage the carb for you versus spending $70 on a JD jetting kit


jeff

P.S. send your suspension to Les at LT-Racing!
__________________
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
06 250 Jetting Advice Brian Enduro Intake/Carburetion - 2 stroke 4 08-28-2010 06:57 PM
Advice, How much? W8TSON General Discussions & Announcements 7 12-21-2009 03:30 PM
Need advice please gascanuck General Discussions & Announcements 2 12-15-2009 07:26 PM
Advice Please sbute General Discussions & Announcements 3 11-11-2009 07:04 PM
Jetting advice Silver Enduro Intake/Carburetion - 2 stroke 11 11-02-2009 04:12 PM




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


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