340 pv jetting help

[garrettagr]

it is just like it sounds, have a 340 pv motor that i just put a 39mm airstryker carb on. it is jetted with a 185 main i believe and the needle is in the middle position. mods include:

340 pv motor
trx 7 porting
trx 5 cenermount pipe
v force reeds
higher compression dome
lightened flywheel

i just swithched to this carb and it is pretty bad. Under a load it spits and sputters pretty bad, cruising is does fine but any throttle is gets really bad. Any help on the jetting would be awesome,

garrett

[havinnoj]

If you're close to sea level, try a 172-175 main and a 55 pilot. Bigger pistons have greater suction on the A/F flow.