Jerry Eichenberger wrote on 04/23/08 at 11:00:18:

1. On the right side of the bike, locate the carb, on the cylinder side of the carb and above the centerline of the intake is a screw (or a plug if you haven't removed it yet)  That's the pilot mixture screw.  If your bike KERPOW's on shut down, turn it to the left about 1/8 turn untill you have a poof.  (this is the idiot's guide to carb tuning, for a more correct method check out lancer's straight and simple carb tuning in the tech section)
2. Blueing and pilot mixture adjustment have very little to do with each other.  As most of the time that you spend with your bike it's not at idle speed.  To get rid of blueing you have to rejet and use blue job (per instructions)  check out savage wahine's carb cleaning post for where the jets are at.  

Like Verslagen says, blueing and idle mixture have little to do with each other. At idle you can not get the EGT's (exhaust gas temperatures) high enough no matter where you set it. The blueing is from heat while running under power.
If you don't want to mess with the needle spacer mod or muffler mod, at least stick in a larger main jet like 150- 152.5 and adjust the idle screw to where she ticks over fastest. Then adjust idle at the throttle adjustment on the left side of the carb to 1200 rpm
(The needle spacer is nothing more than a knee jerk reaction/solution by Suzuki to the stringent EPA requirements to lean the bike out for lower emissions and one of the bike magazines did an article on our 650 a few years ago and also said to completely remove it)

bill67 wrote on 04/23/08 at 16:39:41:

Right on and that's 3000 to 4000 rpm (@ 15mph/1000rpm)

Before you touch ignition and exhaust I would check
warranty, mine states that warranty is toast if I change any of that.
Since I got 3 years warranty I leave it alone.
While most people here could not care less about warranty
I like to know it is there, esp since I got it included...
Performance wise there is nothing I miss (maybe I just don't know
what it could be), I do ride it hard and most of it is 120 kmh on highway.  Never had any problems passing anyone up to 140 kmh.
At 150kmh they charge you here with street racing and I am not so much into that

Pipe is gold and going blue and I love it that way.
Backfire is also there on parking and on hard deceleration and
I love that too. It shows character, it is supposed to be savage, right?


As for fork brace, I installed superbrace recently.
Ever since I did that I am trying to figure out who
installed monorail wherever I need to go
It is amazing difference and the best part is wind does not
touch the bike anymore... I can feel it whipping me but bike
is steady as if it was parked... amazing!

Second thing to do is to replace horn, that is 10 minute job and it
is good investment...

Good luck with your bike!

toro wrote on 05/16/08 at 23:42:07: