Yet another jetting question...

[GMP]

Brian,

You can also try a leaner slide and go from there. After jetting three GG 250s, the '00 and '07 starting with a #7 slide seemed much eaiser to dial in than the '03 with the #6 slide. This is especially evident at idle and off idle, the '07 runs very clean and will idle in gear with a 48 pilot, and the screw is not cranked in excessivelly. The 300 is a bigger pump so maybe a #8 slide and go from there. Just a thought.

Many variables and tolerances come into play here, so absolute specs should be used as a guideline and/or starting point, not labeled good or bad.

[CACTUSREID]

Glenn, I second that motion! I've just gotten the jetting more or less sorted out on my 04 ec 300 that I just purchased. compared to my 01 300 that wouldn't idle with any more than a 38 pilot and about 2.5 turns out on the air screw the 04 seems very close with a 40 pilot and 3/4 turns out. this tells me that a 42 would work fine as well with a bit more adjustment if needed for altitude etc. but i have a # 9 slide in both bikes,and I'm really starting to believe that this alone helps to sort out any idleing/roll on issues as much as anything else.