Hi guys I'm just running a stock machine so far. I just got a alba full exhaust and dynojet kit. Right now I am running the stock filter in the box without lid and snorkels, But soon I will be upgrading to carb mount K+N. Anyways Dyno jet says to run (stage 3) needle in 3rd position, and 195 main jet.

Should I run what they say?

Will I need to change the pilot jet, to what?

I believe I am under 3000ft elevation

Also they say 2 and 1/4 turns out on screw

 

yes on the needle - 3rd groove for carb mount, as well as 3rd groove for K&N in airbox with no lid.

the main jet just depends, they didn't test all the pipes out there, and they're all different, so you just gotta trial and error to pinpoint it.

same with the air screw - you gotta set it yourself - after bike is fully warmed up and idel is set correctly, turn screw in until motor begins to bog, then turn out until motor begins to bog again, then set screw half way between two points of bogging. this is standard method for all bikes/carbs. if, when you are done setting the screw, the final setting is not somewhere between 1.5-3 turns from seated, then the pilot needs changed. if the setting is between 1.5-3 turns out from seated, then the pilot is okay.
in my case, I went to a 45 pilot because the 40 it came with was a bit lean, especially winter time.

 

What if I can only get the engine to bog going one way. This has happend to me before on the screw. I believe I was tightening the screw when it bogged then I was backing off very slowly all the way to the end and all the really happened was the idle increased a little.

 

Hey Hightower... I think the Mikuni manual said to set the idle at 1000rpm to adjust the idle screw.

"With the machine vertical and the engine idling
near 1,000 rpm, adjust the pilot screw in one-half turn at
a time until the idle either slows or becomes irregular. The
pilot screw is now in too far and the idle mixture is too
lean. Pause for a few seconds at each half turn to allow
the engine to settle down and give a clear indication of the
mixture strength."

Crazy... This is from the Mikuni manual:

"Remember, if best idle is achieved with the pilot
screw less that 1/4 turn out, the pilot jet is too large or the
pilot air jet is too small. One or the other will need to be
changed.
On the other hand, if the pilot jet screw must be
more than three and a half turns out for best idle, the pilot
jet is too small (or the pilot air jet is too large). One or the
other will need to be changed.
If the pilot screw’s best idle position is outside the
1/4 to 3-1/2 turn range, the carburetor’s mixture will be
either too lean or too rich as the throttle is just being raised
off the idle position. Once you have a good idle with the
screw within this range, you may proceed to the next stage:
tuning the needle jet.

Here is the link to the Mikuni web site: http://www.mikuni.com/fs-carburetor.html

Good luck! It's really easy!