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Message: [QUOTE="canyncarvr, post: 518660, member: 16552"] If email notification worked better, I'd have seen this last week. Anyway....... From JD in an earlier jetting thread on this forum: "As the straight diameter is richened the feeling of needing a richer clip position goes away. " And....... "For smaller bikes and MX type power I usually suggest a smaller needle straight diameter such as 2.695 or 2.685- CGK or CGJ. This may be important when using a #7 slide. The clip position range may be limited so the CEK or CEJ may be better, it is hard to tell until someone rides and tests. These may seem like a stab in the dark and way off from where you are at but they are the standard needles. [b]It is the stock jetting that is odd![/b] I will go out on a limb and speculate that Kawasaki thought this would be a sweet play bike and need very clean jetting. So they put a lean straight diameter (2.725, or 2.735) , a lean taper (1.25 degrees) , and a lean clip position (L1=39.95) and then came up with 1172N or 1173N. The higher taper start is throwing you guys off track by being lean then rich then lean in an extreme and (to date) unexplained way." The reference to a #7 slide isn't meant to confuse the issue. The point is how a smaller straight diameter acts and where kawi's oem jetting fits in. Needle clip positions are numbered from the top..the blunt end. 38 is indeed the next pilot size 'down' from a 40. The personality of a 2-stroke can be changed from manic to depressive within a quite small range of jetting choices. The [b]FUN[/b] is figuring out what that range is for [b]your[/b] bike and riding style. The attachment should answer your measurement question. You probably have this graph on your 'puter somewhere if you've done much looking into needles and such. ...and don't forget the AS!!;) [/QUOTE]

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