06 TRX450er Jetting/Tuning Question
So, I have a 06 TRX450er, which is a blast to drive since I got it running. It does make an interesting noise, almost like an air suction noise from the intake at idle. Otherwise, low, mid and top range are good. Known mods are listed:
No Airbox lid w/ hole drilled in bottom.
I have the sets set at:
48 Pilot (Slow)
Needle, 3rd groove.
Fuel Screw set 1 7/8 turns out
I have checked valve clearances, both are good.