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KTM MX & Off-Road Dirt Bikes
05 250EXC suddenly to lean? HELP????
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[QUOTE="KTM Mike, post: 1085270, member: 22658"] CRswade - good point. I checked it out...all OK. Stone - My underlying concern is not "how do I change my power delivery so I like it better", nor was it a concern with spark. My concern is bike used to be jetted fine - maybe a tad rich, but fine. Suddenly that changed dramatically when I went to the EE pipe - it became (what seemed to be) way to lean based on no spooge and white plug tip . The reason for spraying the WD40 around the stator area was strictly to determine if I might have a left main seal leaking - nothing to do with ignition itself. The vacuum from the engine would suck in the WD, making the bike run differently for a second - telling me I had a main seal issue. (which I did not thankfully!) As there had been no change on powervalve set up, and as I really liked the power delivery exactly is it was - plus powervalve really would in no way impact the jetting - no need to mess with it either. Long story short - after many jetting trials, I got it back where I wanted it. Worked my way up on the main until it got fat again (burble burble) with a 165 main. Then went back to a 162. A bit of fine tuning with Air screw and clip position - seems great now. Pulls strong and clean, no hicups in power delivery, plug is looking like it should. Interesting to note however, even with the main running way fat based on the definete burble in the power plus a rather dark nasty plug - I mean, absolutely clear it was waaaay to rich - I still had no spooge! I guess the EE pipe is somehow impacting that...but no big deal. Thanks for the replies. Heading for the Moose tomorrow morning with the bike running just the way I like it! [/QUOTE]
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KTM MX & Off-Road Dirt Bikes
05 250EXC suddenly to lean? HELP????
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