Hi I have a 2013 yz450 bone stock. Bike sat for a month started normally 3 kick when cold let warm up rode for a minute than I fell over on bike. Now it will not start. i have spark tried pull starting with truck no go. Have power to fuel pump have a very weak pulse to fuel injector. I am lost on this one bought a gytr tuner no codes the sensors I see readings look normal. Any help would be greatly appreciated. Thanks James.