Then dont mess with it yet,, & dont waste the $$$ on premium, ever watch how many gallons they sell in a day? That stuff Sits There forever,,
These arent High Compression, & thats what High Octane is for, put Ray Gullar in it,
The white washer thing is, IIRC, a pretty good hassle, I dont remember exactly where it is, but I DO remember 2 tiny little screws in the carb.. hard to get to & harder to get back in,

Someone, help this dude out,,

Besides, just because the thing isnt running Perfectly isnt that big of a deal, carbs never do, you can get it better, but you mite want to wait till youve got good reason to go in,

Im gonna say Sea Foam isnt needed in a 3,500 mile carb, It wont fix the white washer, & that carb isnt gummed up.

Justin-o-guy2
OK, thanks. We 'CornCountry' folks now contend with Hi-ethanol gasoline. Only way to avoid it is to buy Premium; certain stations now have 1 Premium tank for Boats, lawnmowers and us Bike owners.
I'm just awonderin' if Seafoam's ingredients (naptha, iso-propyl Alcohol, and PaleOil) PLUS buying Ethanol-blend gasoline wouldn't be a mistake. I dunno. My bike hesitates.....a little. It's an irritation for now.
I DO know I will live with an irritation, but if it's best do the Carb'sPlastic Washer Mod...I guess I will. I'd rather ride than wrench. Locomotiveman

if your going to tackle the white spacer mod you might consider getting one of these tools from harbor freight.
http://www.harborfreight.com/7-piece-reversible-impact-driver-set-93481.html
it will make removing the little screws go with much less bad language, it's only around $5. the best solution, if you have some spare $, is to get a mikuni vm carb from lancer.

Seroboy, Routy and....
I follow you loud and clear on 10%Ethanol/Gasoline being OK. I suppose to be more to my point, I should have asked, "Does the stock Carburetor have an inherent design flaw with that little plastic spacer inserted to satisfy some EPA rule, such that NO amount of Seafoam or Tek will help with it's Mid-range hesitation? Reading the Tech Posts/Mods leads me to think that is so for all of them right off the showroom floor. I also forgot to ask: is that plastic 'washer' a wear-item over time, or is it made of real stable material?  If the hesitation doesn't worsen, I'm tempted to live with it; but I do appreciate the relentless pursuit of perfection here on the Forum. So far, I really like the bike. It's 11/yrs old with 3,000miles. What's not to love. Locomotiveman

From what I understand, the white spacer is a fixed adjustment,.......that used to be adjustable by moving a clip in different knotches on the needle.
(I remember those) On some carbs,.....and under some conditions, it happens to be fine, on others it mite be tolerable,......on mine it wasn't... I didn't like it, and having messed w/ a zillion carbs in my life, it was an easy fix. But one thing is for certain, the epa doesn't want us changing any of these fixed adjustments, and if I remember correctly, a repair shop is not allowed to. And thats not to talk about mods to exhaust etc etc, then all bets are off.
Just like my bike seems to be just fine w/ the stock jets in it, where as others seem to run lean. Mine also idles perfect, and still has the brass plug over the mix screw. Others have had to adjust the mix screw to get even a decent idle.
At the same time, if my bike was subject to being run hard......WOT,......or hi speed on hot days, it may very well prove to be on the lean side and deserve a larger main jet.
What I like to advise here, is don't fix what ain't broke. If its tollerable, maybe its fine,......or at least the MFG thinks it is.
One thing I strongly advise is to put a small inline fuel filter tween the tank and carb. 90% of all carb problems are caused from "dirt" getting in the carb. And the other 10% probably is too.