I have a 2007 Banshee. The bike has a problem nobody seems to be able to fix. The bike has a set of TR5 exhaust system, boost bottle, 280 jets, K&N filters straight on the carbs and racing clutch. The bike will not take off on 2nd gear like all other banshees all of my driving is in the dunes. The other banshees can take off from 2nd gear and go up the dunes but mine with my hand on the clutch and reving it hard then releasing it dies then will move then accelerate hard. I have played with the jets from 240, 260, 270 and now 280. The other problem is when driving hard and then you put 6th gear the bike dies then shift down to 5th and it goes nicely. The other thing is that when racing with another banshee with the same mods it manages to accelerate well then the other banshee will overtake it easily.

I have no idea what is the problem with this banshee i took it to many shops and no one seems to know the problem. Anybody have suggestions.

 

try new reed valves

 

It sounds like a jetting issue. You mentioned the main jet size, did you change the pilot jet, adjust the air screw, or try moving the clips on the needles? There is a whole lot more to jetting a motor than just the main jet.

 

yeah it sounds like you need to go up a notch on the neddle. I had to do the same when I jetted mine for top end speed

 

and if you took it to the shop and they can't figure it out then find a different shop...