New carb jetting help?

[hank22]

Ok guys, lookin for some help from you pros. Doing my first re-jetting on my first R. I've got a 38mm A/S on the way (had stock on it before!) to put on my 310R and wondered what to get to jet it close from the start? Also, I'm running BelRay HR1 premix, should i stick to this or suggest a better one? If you need something i forget to mention let me know, Thanks!

Ok here's what i got...
Stock cylinder sleeved and bored to 72mm at 310cc
Head and jug have been ported and polished
Paul Turner Pipe
K&N filter no lid
93 pump gas/ HR1 32:1 mix
BR9ES
1200 Ft. Elevation

[kouki]

Almost the same setup as me, and dead on elevation. I'm running a 50 pilot, dgh needle on 3rd clip, and 178 main. I may need to go up a size on the main once it really warms up here, but otherwise its good. I'd say start around there. It's better to start fat and go down than be lean and burn it up first time out.

[dunatic]

DEG or DEJ needle on middle (3rd clip) position.

175-180 main

50 pilot if over 200psi cranking compression

52 pilot if under 200psi

1.5 - 1.75 turns out on the air idle screw

[hank22]

Thanks guys! Where does everyone get there needle and jets from? My local shop here like to rape ya on their prices! Where's the best place? And should i stay with the same belray premix or should i change it when i put the new carb on?

[dunatic]

sudco is the national distributer....google search em

I like Torco GP7
1 pint per 5 gallons