I have a stroker / big bore= 780cc with a stage 3 cam. What size of injector should I upgrade to?
Perfect I will give them a call thanks. Did it make a huge difference upgrading ?You might need a 650-750 injector. You should contact Geisick Performance and they will put you very close. They sell injectors on Ebay. I used them in the past for both YFZ450r's and Raptor 700's. Geisickperformance.com