Hello, I've recently purchased a 1987 Yamaha Banshee that was stored for almost 10 years and incredibly, it looks and runs like new. Anyway, I bought a set of Toomey T-5 pipes and silencers and was hoping to get some jetting advise. Quad has stock airbox with drilled top and live in Rhode Island, so I guess I'm at sea level. Any help would be greatly appreciated.

 

Start with 27.5 pilots and 270 mains. give it a WOT test in third gear or above and adjust from there..... Every Banshee is different.