My canadian 1980 XS400 special has a 271 y-4 needle jet, and an adjustable 5gz15 needle. I am trying to set up the jetting for my pod filters and am ordering 45 and 47.5 pilots, and 137.5, 140 and 142.5 mains. I would like to order the right needle and needle jet, but I can't figure out which one it would be, or how it would compare to mine. It seems like mine is a little leaner than the 5I series that mikesxs sells for the 650, which would make sense for a 400, but I am really not certain. A google search for 5GZ15 yields no useful results!
So if anyone has any info on this needle, please let me know.
Thanks
Lars
So if anyone has any info on this needle, please let me know.
Thanks
Lars
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