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


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  #11  
Old 05-27-2018, 02:16 PM
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Motocrotts Motocrotts is offline
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With the new mapping I'm running the standard needle in the 2nd pos, 170MJ and 40PJ. 2500' and 60 - 80 degs F.
Its still a little rich off the bottom. Think I'm going to put in a 38 pilot. Its so dry here if we had some more humidity the 40 may be fine but I'm talking 5% humidity.


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  #12  
Old 05-27-2018, 06:03 PM
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Its still a little rich off the bottom. Think I'm going to put in a 38 pilot. Its so dry here if we had some more humidity the 40 may be fine but I'm talking 5% humidity.
The pilot jet isn't your problem.

The stock needle, its short straight section and the rich F diameter of said straight section is the rich condition you are feeling. Odds are that the idle screw is wound in so far that the pilot and airscrew are just about being bypassed.

Also, adding humidity would make your engine run richer. Dense cold air requires more fuel. Thin that air out due to increasing water content (humidity) or increasing elevation and you'll need to reduce the fuel component.
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  #13  
Old 05-27-2018, 08:23 PM
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The pilot jet isn't your problem.

The stock needle, its short straight section and the rich F diameter of said straight section is the rich condition you are feeling. Odds are that the idle screw is wound in so far that the pilot and airscrew are just about being bypassed.

Also, adding humidity would make your engine run richer. Dense cold air requires more fuel. Thin that air out due to increasing water content (humidity) or increasing elevation and you'll need to reduce the fuel component.
I think you're right. Im open to suggestions.
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  #14  
Old 05-28-2018, 05:10 AM
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I think you're right. Im open to suggestions.
http://www.gasgasrider.org/forum/showthread.php?t=23074
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  #15  
Old 05-29-2018, 05:24 PM
taylor146 taylor146 is offline
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Hi all, tried the standard needle after the remap with175m /42p and it didn't seem too bad other than an overly rich blubber 1/8-1/4 throttle. Tried NEDH 3rd clip and it really cleaned up 1/8-1/4 but maybe bit lean 1/2 throttle as the power valve opens , need to test 4th clip or try NECH 4th clip . Ran well with NEDW before the remap but after suffered with hanging idle and detonation on deceleration after.
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  #16  
Old 06-03-2018, 02:07 AM
Gottsell Gottsell is offline
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Nedh 3
Pilot 45
Main 180
Air screw 1,5
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  #17  
Old 06-04-2018, 08:33 PM
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I just installed a N3CH 2nd clip, 178 main, and 42 pilot. AS 1.5 , 2500' and 70 to 90 degrees. It was 106 degs when i tried it this afternoon. Too hot to ride. Ill try it again tomorrow morning and get a plug reading.
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Old 06-24-2018, 11:50 AM
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I just installed a N3CH 2nd clip, 178 main, and 42 pilot. AS 1.5 , 2500' and 70 to 90 degrees. It was 106 degs when i tried it this afternoon. Too hot to ride. Ill try it again tomorrow morning and get a plug reading.
Ran this jetting today and its still fat on the bottom. Took A/S out to 2 turns, still lethargic right off the bottom but pulls through the lower mid up to the top really well. Im going to throw in a 40 and see how it does.
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Old 07-31-2018, 07:57 PM
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So far it's still fat but it's also hot as hell. Tried 175mj NEDJ 3rd clip and 42 pilot. Still fat off the bottom, clean on the mid but seemed a little loaded up to pull the main at first, then cleaned out. Needle feels good though. Plug dry but dark. Dropped pilot to 40 and main to 172. See how that goes.
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  #20  
Old 07-31-2018, 08:29 PM
Jacob 'Berg Jacob 'Berg is offline
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Originally Posted by Motocrotts View Post
So far it's still fat but it's also hot as hell. Tried 175mj NEDJ 3rd clip and 42 pilot. Still fat off the bottom, clean on the mid but seemed a little loaded up to pull the main at first, then cleaned out. Needle feels good though. Plug dry but dark. Dropped pilot to 40 and main to 172. See how that goes.
I'm running the same pilot and main in my 250 right now, with a NEDW#2. I could probably go a tad leaner, but I will run this until the head/squish is cut. Yes, it is hot. Get up to the Bradshaws when you can...
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