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
  #21  
Old 04-15-2016, 09:48 PM
Jakobi's Avatar
Jakobi Jakobi is offline
Super Moderator
 
Join Date: Oct 2010
Location: Australia
Posts: 7,994
Default

Quote:
Originally Posted by lneil06 View Post
Tonight I checked the float height, spot on at 6.5mm, so I don't think it's that, but was hoping. I also checked the reeds, they are in exceptionl shape.

I'll try the 178 main and 40 pilot tomorrow.
I usually lower the float out to 7-7.5mm to compensate for the forward lean of the carb.. Haven't experienced any issues running the bowl dry at these levels, and its also a common thing to do with the other brands running these carbs.

Your poor economy is coming from the needle. As an interim which should offer some benefit, you could lift the needle clip up to position 2, however the real gains will come with a different taper profile.


Reply With Quote


  #22  
Old 04-16-2016, 07:39 AM
barossi73's Avatar
barossi73 barossi73 is offline
Gold Level Site Supporter
 
Join Date: Jan 2014
Posts: 551
Default

+1 what jakobi said.youve stated that you ride mainly 0-1/4 throttle.that is the problem area on your current needle,the very lean main may be helping clean it up a little but based on your mileage-not much!
The ned? should help and will also give a much smoother,progressive,linear delivery that will take part throttle openings better.
Since i fitted this needle i have never felt the need to bother with map switch as the delivery is so smooth anyway
Fwiw my stock needle was noz?,identical taper but a half clip leaner than n1e? and it was still too rich at bottom,even in clip2.for $15 its worth trying.
My conditions,10-30degC,0-1000m,70-80%humidity
Running rich as you are and spending a lot of time at low throttle im surprised you havnt fouled a plug or two,although iridium plugs will mask this symptom by generally refusing to foul(i also find iridiums harder to read and it could be my imagination but also felt engine didnt run quite as strong)
Start with ned?as clip4,3 and prob 2 should be safe options.
Nec? Is half clip leaner so clip3=ned?2.5,so theres less useful positions,if you like the ned then consider nec for finetuning l8r
Start with the exact needle diameter as the stock needle you have,in clip3,or 4 if youre edgy!(dont be put off if clip4 is utter crap)
Change that main,even if you dont get on the pipe urself.id hate for you to swapbikes with a m8 and have him grenade it for you!
__________________
2013 ec200r

Last edited by barossi73; 04-16-2016 at 08:53 AM.
Reply With Quote
  #23  
Old 04-28-2016, 05:12 PM
barossi73's Avatar
barossi73 barossi73 is offline
Gold Level Site Supporter
 
Join Date: Jan 2014
Posts: 551
Default

Any updates on your jetting?
__________________
2013 ec200r
Reply With Quote
  #24  
Old 10-28-2016, 01:05 PM
lneil06 lneil06 is offline
Member
 
Join Date: Dec 2015
Posts: 46
Default 2013 Christini 300 update

It's FINALLY IDLING !!

OK - I just installed all new reed cage caskets, new carburetor boot, new gasket on the Alternator side.

JD jet kit installed - red needle slot 4 - 175Main - and 38 pilot and it's finally idling and not loading up. With the 40 Pilot it was idling - loading up, idle would drop, and if you turned the throttle bike would blow smoke - enough for neighbors to think I was fogging for Mosquitoes !!

At around 1/2 throttle and beyond its spongy - so thinking of trying a 172 main. The carburetor rebuild kit I bought had a 165 Main - and the when I got the bike it had a 165 Main in it. I don't want to put it in and take a risk of locking it up.

When on the trails I barely hit 1/2 throttle.

When I change the power mapping - I have to say it sure does put a smile on my face - 1/4 throttle and the front end comes right up.

Bendix issue - I bought the 5009 and only took some off the top cover to clear - it spins clear without any binding. Some people where saying they needed to modify the shaft of the 5009 - I didn't need too any off the shaft like others mentioned - it's still intermittent.

One good thing the bike kick starts easy.
Reply With Quote
  #25  
Old 10-28-2016, 01:23 PM
pscook's Avatar
pscook pscook is offline
Platinum Level Site Supporter
 
Join Date: Oct 2011
Location: Shoreline, WA
Posts: 1,164
Default

Quote:
Originally Posted by lneil06 View Post
JD jet kit installed - red needle slot 4 - 175Main - and 38 pilot and it's finally idling and not loading up.

At around 1/2 throttle and beyond its spongy - so thinking of trying a 172 main. The carburetor rebuild kit I bought had a 165 Main - and the when I got the bike it had a 165 Main in it. I don't want to put it in and take a risk of locking it up.

When on the trails I barely hit 1/2 throttle.
I would suggest you lower the needle/raise the clip before swapping out the main if you are concerned about seizing due to lean mixture. As I understand it, the main is only really involved once the needle gets out of the way, or at about 3/4 throttle. Plus, it's much easier to change the needle (in my opinion, and on a gasser not a Christini) than the main jet.
__________________
Phil
(New bike pending...)
Reply With Quote
  #26  
Old 10-31-2016, 07:02 AM
lneil06 lneil06 is offline
Member
 
Join Date: Dec 2015
Posts: 46
Default Interesting Ride this weekend

Idle was still an issue - had to go out 3/4 turn on the air screw - even with the 38 pilot.

One problem - I'm using the JD jet kit red needle - clip at the #4 spot. At 1/4 throttle - even on the mild mapping - the power hits hard making it a bit of a hair raiser in the rocks and roots of New England.

The top end is still cutting out running the 172 - worse with the 175.

I repacked the muffler in January - so it has to be OK - but will also repack the pipe.

I have a NEDW needle I may go back too.

Lenny
Reply With Quote
  #27  
Old 10-31-2016, 10:36 AM
Neil E. Neil E. is offline
Senior Member
 
Join Date: Mar 2007
Location: Gormley, Ontario, Canada
Posts: 1,418
Default

I use 42PJ, air screw 2.5 out, JD red #4, 6.5 slide and 175 main on a GG250. I run this jetting year-round, temperatures from 0*C through to 25*C. It's a bit sleepy in warm weather and very crisp when it's cold. I rarely ever use more than half throttle and don't run a thermostat.

What slide is in your carb? I tried a #8 and found it too agressive.
__________________
2011 EC250E
Reply With Quote
  #28  
Old 10-31-2016, 12:18 PM
Neil E. Neil E. is offline
Senior Member
 
Join Date: Mar 2007
Location: Gormley, Ontario, Canada
Posts: 1,418
Default

I'll add that I'm getting better than 10km per liter. Does the Christini have any sort of disconnect on the front wheel drive? Your added hardware could be causing higher gas usage much like a 4WD pickup that gets worse mileage with the front axle engaged.
__________________
2011 EC250E
Reply With Quote
  #29  
Old 11-03-2016, 09:21 AM
lneil06 lneil06 is offline
Member
 
Join Date: Dec 2015
Posts: 46
Default

Yes - The front wheel can be completely disconnected with a lever on the handlebar. When engaged the front wheel only grabs when the rear tire spins - so it's really a auto AWD.

I have to say - I love mud holes now ! My son loves riding it in the snow !
Reply With Quote
  #30  
Old 11-14-2016, 08:50 AM
lneil06 lneil06 is offline
Member
 
Join Date: Dec 2015
Posts: 46
Default Still running rich

OK - I must be missing something from 1/2 throttle to full throttle.

I have replaced the following
- Gaskets on reed cage
- Rubber carb boot
- Complete carb rebuild kit
- replaced 2 bearings in power valve - left side
- Main jets that I have tried, 180, 175, 172,170,168,165
- Pilot jets - 42, 40, 28
- Needles - J&D Blue, Red, NEDW, Stock GasGas
- Repacked the pipe yesterday for the second time this season
- NGK Platinum plug - 8EIX

Any help would be greatly appreciated.
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
Help with Float Level - Low mileage EC250 2013 periclesgsilva Enduro Intake/Carburetion - 2 stroke 10 07-06-2017 05:22 PM
2013 EC300 E - GasGas Fan Rectifier/Regulator FDB Enduro Electrical & Wiring 2 10-25-2014 02:10 PM
what ever happened with the 08 ec300 christini? dank General Discussions & Announcements 14 04-26-2014 05:31 PM
New 2013 Christini GasGas AWD 5999? Moto7man New Bikes 16 02-24-2014 10:47 AM
Christini Gasgas 2 strokes 4 life General Discussions & Announcements 33 02-17-2009 11:22 AM




All times are GMT -5. The time now is 01:25 AM.


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