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Enduro Engine - 2 stroke Cylinder, Piston, Tranny, Bearings, Clutch, Pipes & Silencers, etc. |
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#1
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03 250ec jetting question?
Ok,, I'm working on a 03 250ec that is a friend bike,, was mine 4 years ago. I had it jetted good at the time. I pulled the carb as it runs way rich and hard to keep running. Carb was slugged up from sitting and some bad ethanol. I ran the carb in my ultrasonic carb cleaner, looks brand new. Set floats as they were way off, to 16 mm and checked jets, main180 and idle 45? I never ran that fat on either. I think it was 178/42? We run basically same altitude/temp as the last owner that had it in NC. I'm at sea level to 3k. Rarely over 95 f and high humidity. LTR needle middle position and AS carb with screw top. Also swapping rad valve to vforce3 as your reading this.
Thinking go back to 178/42 as a base? The current seams off.
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Steve 16 Beta 350rr 04 KTM 525 sx/exc gone 03 KTM 625 sxc-rehab unit-did its job and now gone 03 GG 250 ec-gone 97 GG 250 ec Gone |
#2
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Found my LTR notes,, 180 main and 48 pilot. Sounds rich so I'll stick with what's in it for now.
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Steve 16 Beta 350rr 04 KTM 525 sx/exc gone 03 KTM 625 sxc-rehab unit-did its job and now gone 03 GG 250 ec-gone 97 GG 250 ec Gone |
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Steve,
That should be in the ballpark. The LTR or DDK is a good needle in the 250 without spending $$ on the JD kit, or a lot of screwing around with multi taper needles. The half clip leaner DEK may be what you need as well. VForce did not make much of a difference in jetting. Nice low to mid gains though. |
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