Originally Posted by AirCommando
I just purchased a used MIKUNI TM40 and was hoping to get some inmate info on initial settings.
My XRR is uncorked with factory exhausted. Factory air cover. Here in Tucson my play area is 2000'-6000' and 80-100 degrees.
Looking for MJ #, PJ # and needle positions.
1.2 air jet, 25 pj, 140 mj, and clip 4 down (with washer under clip) on the needle works for me. A lot will depend though on how the exhaust tip was modified when the bike was uncorked, You'll be lucky if you get it tuned right quick, mine is real finicky. You may need to tweak the AP adjustment with a small gap in case you get a bog when you whack the throttle. Good luck.