2008 Yamaha yZ125 "help 39 seat jet 3" Questions

...39;t idle without choke open Hi, Anonymous and the usual suspects are: 1. Fuel cap or fuel tank is not venting properly. 2. Fuel filter clogged. 3. Fuel line pinched or kinked. 4. Float needle and ...

39;s could be my problem? the problem is with the fuel injection system,. First clean your carburettor . Then please check your carburettor fuel and air supply , Check the jet pin and most probably it