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


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  #1  
Old 06-23-2018, 04:38 PM
andper andper is offline
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Default Ec250 -12 CCK #1,PJ 40 main 170 slide 7?

What do u think, too lean or too rich? Sounds and rides well.

Riding at 150m above sealevel and about 20celcius

CCK #1,
PJ 40 ,
Main 170 ,
slide 7.


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Old 06-24-2018, 03:28 AM
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So why are you asking?

Move the needle clip one position. Then the other direction.

Better or worse?

Any pinging noise?
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Old 06-26-2018, 04:07 PM
andper andper is offline
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Quote:
Originally Posted by (F5) View Post
So why are you asking?

Move the needle clip one position. Then the other direction.

Better or worse?

Any pinging noise?
Because im new to jetting and I wanted to know if you think of that. "WOW, thats way too lean" or "WOW, thats too rich" or ....

Started out with need in #3 , with some hesitation on throttle, which improved by moving it to #2 and even more to #1.

Still not satisfied with throttle respone right of idle tho
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Old 06-26-2018, 10:23 PM
Motorman_55792 Motorman_55792 is offline
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Those numbers sound like maybe a RB modded carb. My 2007 ec250 with an RB mod carb has 175 main, 40 pilot with the air screw 2.25 turns out (so could run a 38 pilot), CEK needle at #2, and #7 slide. Similar elevation and temp to you.

Last edited by Motorman_55792; 06-26-2018 at 10:54 PM.
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Old 06-27-2018, 11:58 AM
andper andper is offline
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Quote:
Originally Posted by Motorman_55792 View Post
Those numbers sound like maybe a RB modded carb. My 2007 ec250 with an RB mod carb has 175 main, 40 pilot with the air screw 2.25 turns out (so could run a 38 pilot), CEK needle at #2, and #7 slide. Similar elevation and temp to you.
Okay, i live in Europe so I dont think its RB modded. Good thing the numbers doesnt look way off. CEK #3 is similar to CCK #1 right?

Pulled the plug and it was black. better a bit rich then too lean i guess, im sticking with this jetting for now
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Old 06-28-2018, 01:05 PM
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Quote:
Originally Posted by andper View Post
Okay, i live in Europe so I dont think its RB modded. Good thing the numbers doesnt look way off. CEK #3 is similar to CCK #1 right?

Pulled the plug and it was black. better a bit rich then too lean i guess, im sticking with this jetting for now
By "CEK #3", Motoman is referring to the specific groove in the CEK jet needle in which he placed the "Jesus clip"; the third from the top, or the middle groove. (Jesus clip is referred to as such, because when moving the clip on a trail ride and the clip falls into the leaves and dirt, it often prompts the exclamation "Jesus!". I learned this from a fellow rider during a trail ride in Idaho. )



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Old 07-27-2018, 06:52 AM
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Maybe change the order and talk to Jesus before you play with the clip.
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