Sounds like a fuel problem. Could be many things. But I’d start with cleaning the carburetor and checking/setting the float.When starting my 2008 rmz 450, bike starts ok but then when I put the throttle on it starts to struggle revving up, if I keep the revs on it then starts to pop and backfire, any help please
Sounds like a fuel problem. Could be many things. But I’d start with cleaning the carburetor and checking/setting the thanks for the reply, sorry I forgot to add that it's the efi model