Hey I just got an entire fmf exhaust system and it didn't come with a flange so does anyone know the diamiter of the header?
Should be able to order one right from fmf ?
Are you talking about the flange that bolts to the engine.
Yes. Also do you know if I need to change my jetting? I'm gonna from a DG
Thanks manPlate part that mounts to engine is 85mm x 58mm and is about 4-5mm thick. 2 holes 70mm apart center to center, pipe part is 23mm long x 38mm OD x 35mm ID
I'm think it has a 230. And no mods that effect the performanceYes you will most likely need to up your main jet. Do you know what it is now ? Any other mods you have ?
Airbox lid is on. My temp is around 60 to 75. Altitude is around 700Whats your temps and altitude ? Air box lid on i presume ? You will need to plug chop to get spot on, but i myself or others on the forum will ne able to get you in the ball park.
Ohh,,,, and make sure you have no air leaks. Even an exhaust leak can make jetting eratic.