chris46250r
08-09-2007, 08:16 PM
I just bought a 07 400ex a couple weeks ago and I was changing oil and cleaning the filter this afternoon and I decided to up the 38 to a 40 pilot. Took the 38 out and it was a short stumpy pilot jet. I compaired it to the 40 I had and its exactly the same from threads up but it is a tad longer on the other end. The 38 was up in the hole a little and the 40 sits flush with it. I went ahead and put it in and it runs fine. I guess my question is whats the difference in the two other than the obvious? I looked at all the other 10 or 15 pilot jets I had from 250r's, CR's, 450r's and I dont know what else and they were all the same length. Whats up with this?