Does anyone know the part number for a mikuni adjustable needle for the stock mikuni 40mm carb 07 Roadstar?
Thanks for any info you can help with

Ivan from Texas. Sorry I don't know that but I bet someone will respond with the answer and someone may have a extra one laying around that you can get from him or her.

Thanks for the welcome, Road Star Clinic website has really helped me learn about my Road Star. Mine rides well it just needs some updates and tuning. I bought it with 2300 miles on it and it really hadnt been ridden hard at all. I noticed after the first fill up my mileage was really poor around 25-30 mpg and it started to run like it was missing.

Pulled the plugs and the two on the pushrod side were wet>.changed out with iridiums, cut back the wires and reseated the caps>pulled the carb and pilot was slightly dirty, reset the float according to the tech article aligning float ridge with carb tower and it was really on the lean side. I did set the airscrew at 3 turns out.

Put it all back together, changed oil and gear lube, dumped in some Marvel and went for a ride, it ran great pulled well over a 100 with no hesitation. It still has a hiccup when you blip the throttle but will get to that when I put on the new Vance and Hines pipes and K&N filter assembly.

Also I did the choke knob cutback>I had to cut off a full 1/8th to get a biz card clearance. Thanks again to the brillant folks that thought up these tech articles>.

As far as I know, Mikuni does not make an adjustable needle for the stock carb which is a BSR40mm, other than the fact if you remove the shim (washer) it will lean it a half step, or adding a shim will richen it by a half step. As far as I can tell, it is a series 6 needle, on this page: http://www.motorcyclecarbs.com/Mikuni_Jet_Needle_Dimension_Ch_W121.cfm it only shows 2 needles available, but they are much different in length.

Don't know that you can buy just the needle anywhere. The SpeedStar kit has a 5 grove needle, so do a few other kits like DynaJet and Barons has a 6 grove needle but I bet you have to buy the whole jet kit just to get the needle. You could check with a dealer to see if you can buy just a SpeedStar needle alone.

the european model of the roadie has an adjustable needle in the stock BSR40.

i ain´t got a part nº, but i have a standard adjustable needle in my hand at the moment, and the nº on the needle is.....

6HDC27

that´ll be the standard mikuni reference, so you now have to call your local mikuni u.s.a. distributor which i believe the closest to you is fort worth at......

http://www.tuckerrocky.com/

and just in case, here´s mikuni´s u.s. website.....

http://www.mikuni.com/fs-carburetor.html


HTH

Thanks to all for the info and assistance. have a needle being sent to me and thanks again for all the help.

Thanks to Matt who sent me a complete needle/shims/clips>> I really appreciate you doing doing this and i hope to be able to do the same for other Road Star owners. Thanks for going out of your way Matt to do this for me.

I love a happy ending!!

Table shower sounds interesting