[dsn_klr650] dyno/keihin jet comparison

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www.buykawasaki.com has two maintenance manuals listed for the 1992 KLR 650: 99924105001 / Service Manual 99924108055 / Service Manual - Supplement There is also two listings for something called an "A & P Manual": 99931-1064-02 A & P Manual 99931-1194-01 A & P Manual Which of these items must I buy to do maintenance on my bike? Thanks, Ben

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[zootpatutie]

If I remember this thread correctly (yeah, sure) someone posted that the dyna jet 140 was the same as the Keihin 136. I don't have confirmation on this though. Flow characteristics of the two were claimed to be different due to geometry. Todd A9

 I could be all wrong here and please correct me if I am.  It seems to me that the jet sizing from Dyna use standard orifice size numbering.  I don't know for sure because I don't have a set of the wires that measure the jet sizes, but visually, I can see that their 150 is slightly bigger than the stock Kawasaki 148.  I can also see that Dyna's 140 is smaller than the 148 and similarly with the Dyna 136, which is clearly smallest of them all.  I think what Dyna has done is made a rather radical change to the needle which affects the entire range.  This allows them to specify a smaller main jet, which in fact is SMALLER than the stock jet. ======== >