Ec250 -12 CCK #1,PJ 40 main 170 slide 7?
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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
Motorman_55792
Member
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.
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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
Jim Cook
Platinum Level Site Supporter
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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