calling all jetting guru's

['99350t]

ok heres my mods. t5pipes, good mild porting, stock bore stock stroke vitos pistons. noss head with 20cc domes, vf'3 reeds. stock carbs bored to 27.5mm, toomey 2:1 intake with outerwear. iam running av fuel mixed 50:1 amsoil dominator oil. 750ft elevation. averaging about 70-80degrees temp. timming is advanced +5 degrees. where a good starting point on mains, pilots, and air screw turns?? all help greatly appreciated.

[fastrthnu]

ok heres my mods. t5pipes, good mild porting, stock bore stock stroke vitos pistons. noss head with 20cc domes, vf'3 reeds. stock carbs bored to 27.5mm, toomey 2:1 intake with outerwear. iam running av fuel mixed 50:1 amsoil dominator oil. 750ft elevation. averaging about 70-80degrees temp. timming is advanced +5 degrees. where a good starting point on mains, pilots, and air screw turns?? all help greatly appreciated.

 

25 pilot 1-1.5 turns out to start and 300 main. do a plug chop right after to fine tune. thats ball park.

[bigboybanshee]

I would start at a 320 main, 27.5 pilot. My trail bike has a mild port on it, PT mids, stock carbs, 20cc domes, boyeson reeds, K&N pro flow kit w/ no lid, and 320's seem to be the ticket. I'm at 4-500' above sea level. :beer:

[dajogejr]

340 or 350 mains.

I ran t5s and pod filters or the Toomey 1 into 2 air filter with outerwear...NO Porting, stock head and +4 timing, and was at a 340 main, 27.5 pilot, toomey/dynojet needles on the 4th clip from the blunt end.

1.0 to 1.75 turns out on the air screws.

 

Your porting may like more or less fuel, but I think 340 to 350 is pretty safe starting point.

['99350t]

great, thanks guys. iam goin to throw 350's in it to be safe and work my way down. i'll pick up a 27.5 pilot. thanks again!! greatly appreciated