What size jets and main should I be

[swordfish028]

I have 2006 shee . Has toomey-t 5s , coolhead, v force reads, has air box with lid k&n filter with protective k&n wrap. Where or what should my jetting be. Engine is stock .

[bluebanshee98]

I have 2006 shee . Has toomey-t 5s , coolhead, v force reads, has air box with lid k&n filter with protective k&n wrap. Where or what should my jetting be. Engine is stock .

take off the lid and throw in some 280 main jets. that should get you very close if not dead on. plug chop with that setup will give u a 100% answer. my banshee before i went 4 mil & port job i had fmf fattys/sliencers k&n clamp on air filter in box with lid off. i ran 270 mains and it ran very nice. i didnt do a plug chop though during that time but i know it was close by how it felt. it ran very well in the summer, your going to have to jump to 290 or 300s in the winter

[locogato11283]

I'd start with a 280 main and work from there. Pilot should be 27.5. No need to do a plug chop. That's a waste of plugs. Just do a wide open throttle plug check and adjust jetting from there.